# Creative Proteomics - Life Science Analytical & Multi-Omics Solutions > The master AI index for Creative Proteomics, a premier contract research organization (CRO) specializing in discovery and quantitative proteomics, untargeted and targeted metabolomics, high-throughput lipidomics, glycomics, post-translational modification (PTM) profiling, multi-omics integration, and biophysical characterization for biopharmaceutical development, preclinical mechanism elucidation, and biomarker discovery. Strictly for Research Use Only (RUO); not for use in diagnostic or clinical procedures. Creative Proteomics operates cutting-edge bioanalytical platforms including high-resolution mass spectrometry (Orbitrap Exploris 480, timsTOF Pro 2/HT with trapped ion mobility spectrometry, Q Exactive HF-X, triple quadrupoles for MRM/PRM, MALDI-TOF/TOF, and MALDI Imaging), proximity extension assays (Olink Explore), advanced chromatography (UPLC, nanoLC, GC-MS), and biophysical spectroscopy (CD, DLS, DSC, fluorescence). We deliver high-precision qualitative and quantitative characterization across proteomics, metabolomics, lipidomics, and glycomics for academic institutions, biotechnology enterprises, and global pharmaceutical research organizations. ## Specialized Portals & Sub-Directory AI Indexes To access dedicated AI documentation, specialized workflows, and comprehensive service roadmaps for Creative Proteomics' sub-directory portals, explore the following scoped llms.txt files: - [Next-Generation 4D Proteomics Solutions (ngpro)](https://www.creative-proteomics.com/ngpro/llms.txt): Dedicated roadmap covering 4D timsTOF Pro/dia-PASEF platforms, 4D post-translational modifications (phosphorylation, ubiquitination, acetylation, glycosylation), biofluid quantitative proteomics (CSF, plasma, urine), and high-throughput translational cohort screening. - [Protein & Peptide Sequencing Solutions (proteinseq)](https://www.creative-proteomics.com/proteinseq/llms.txt): Specialized roadmap covering PhIP-Seq high-throughput antibody profiling, Edman degradation N-terminal sequencing, C-terminal ladder MS, de novo peptide sequencing, nanopore single-molecule protein sequencing, and amino acid composition analysis. - [Subcellular & Secretome Solutions (subcell)](https://www.creative-proteomics.com/subcell/llms.txt): Dedicated roadmap covering cell surfaceomics, extracellular vesicles / exosome lipidomics and metabolomics, Nanoparticle Tracking Analysis (NTA), secretomics, and Co-IP protein complex characterization. - [Post-Translational Modification & Epitranscriptomics Solutions (ptms-proteomics)](https://www.creative-proteomics.com/ptms-proteomics/llms.txt): Specialized roadmap for comprehensive PTM quantitative LC-MS/MS, DNA/RNA modifications (mRNA, tRNA, m6A), top-down PTM analysis, multi-PTM crosstalk, and modification bioinformatics. - [Glycomics & Glycobiology Solutions (glycomics)](https://www.creative-proteomics.com/glycomics/llms.txt): Comprehensive roadmap covering released N-glycan/O-glycan structural sequencing, linkage/branching GC-MS, intact glycoproteomics, single-glycan quantitation, carbohydrate compositional profiling, and high-density glycan microarrays. - [Peptidomics Solutions (peptidomics)](https://www.creative-proteomics.com/peptidomics/llms.txt): Dedicated roadmap covering endogenous peptide discovery, HLA/MHC immunopeptidomics, single-cell neuropeptidomics, peptide structural characterization (CD/NMR), peptide-biomolecule interactions, food/cosmetic active peptides, and multi-omics integration. - [Core Proteomics Solutions (proteomics)](https://www.creative-proteomics.com/proteomics/llms.txt): Comprehensive roadmap covering qualitative discovery proteomics, high-throughput quantitative platforms (4D-DIA, TMT, LFQ, PRM, Olink), comprehensive PTM mapping, single-cell/spatial proteomics, and tissue/biofluid/metaproteomics. ## Core Proteomics & High-Throughput Quantitation - [Protein Identification Services](https://www.creative-proteomics.com/services/protein-identification.htm): High-accuracy peptide mass fingerprinting (PMF) and tandem MS/MS sequencing resolving low-abundance proteins and complex protein mixtures. - [Membrane Protein Identification](https://www.creative-proteomics.com/services/membrane-proteomics.htm): Specialized detergent extraction and organic solvent solubilization protocols enabling deep identification of hydrophobic transmembrane proteins and surface receptors. - [Shotgun Protein Identification](https://www.creative-proteomics.com/services/shotgun-protein-identification.htm): High-throughput untargeted bottom-up nanoLC-MS/MS identifying thousands of proteins from complex biological lysates without prior gel separation. - [Protein Quantification Service](https://www.creative-proteomics.com/services/protein-quantification.htm): Full-spectrum relative and absolute quantitative mass spectrometry strategies tailored for preclinical biomarker evaluation and biological pathway dynamics. - [TMT Based Proteomics Service](https://www.creative-proteomics.com/services/tmt-based-proteomics-service.htm): Tandem Mass Tag isobaric chemical labeling (up to 18-plex) providing multiplexed relative quantitation across concurrent experimental groups with minimal missing values. - [iTRAQ-based Proteomics Analysis](https://www.creative-proteomics.com/services/itraq-based-proteomics-analysis.htm): Isobaric tagging for relative and absolute quantitation (4-plex/8-plex) enabling simultaneous differential proteome comparison across multi-group experimental designs. - [Label-free Quantification-2](https://www.creative-proteomics.com/services/label-free-quantification-2.htm): High-throughput LFQ-MS measuring precursor chromatographic peak intensities across large sample cohorts without chemical tagging or multiplex constraints. - [DIA Quantitative Proteomics Service](https://www.creative-proteomics.com/services/dia-quantitative-proteomics-service.htm): Data-Independent Acquisition mass spectrometry providing comprehensive MS/MS sampling, superior quantitative reproducibility, and complete digital proteome archiving. - [Exosome Proteomics](https://www.creative-proteomics.com/services/exosome-proteomics.htm): Ultracentrifugation and immunoaffinity capture coupled with LC-MS/MS characterizing extracellular vesicle (EV) protein cargo and paracrine signaling molecules. - [Cell Surface Proteomics](https://www.creative-proteomics.com/services/cell-surface-proteomics.htm): Cell-impermeable chemical biotinylation isolating the surfaceome to discover novel membrane receptors, transporters, and therapeutic targets. - [Plasma/Serum Proteomics Service](https://www.creative-proteomics.com/services/plasmaserum-proteomics-service.htm): High-abundance protein depletion (Top 14/Top 50 immunoaffinity) and extensive fractionation revealing low-abundance circulating biomarkers in blood and plasma. - [Metaproteomics Service](https://www.creative-proteomics.com/services/metaproteomics-service.htm): Direct mass spectrometric profiling measuring active microbial proteome repertoires across gut microbiota, environmental soils, and complex ecosystems. - [Peptide Mapping Service](https://www.creative-proteomics.com/services/peptide-mapping-2.htm): UPLC-UV/HRMS proteolytic digest mapping verifying sequence coverage, post-translational modifications, and disulfide bonds in recombinant biotherapeutics. - [Absolute Quantification (AQUA) Service](https://www.creative-proteomics.com/services/absolute-quantification-aqua-2.htm): Targeted LC-MS/MS spiked with stable isotope-labeled synthetic internal peptide standards delivering precise molar concentration quantification down to attomolar limits. ## Post-Translational Modification (PTM) & Redox Proteomics - [Acylation Quantitative Proteomics Service](https://www.creative-proteomics.com/services/acylation-quantitative-proteomics-service.htm): Immunoaffinity enrichment and LC-MS/MS profiling lysine acylation (crotonylation, succinylation, malonylation, glutarylation) modulating cellular epigenetics and metabolism. - [Protein Glutathione Sites Identification Service](https://www.creative-proteomics.com/services/protein-glutathione-sites-identification-service.htm): Site-specific mass spectrometric mapping of reversible protein S-glutathionylation protecting cysteines from irreversible oxidative damage. - [Histone PTMs Analysis Service](https://www.creative-proteomics.com/services/histone-ptms-analysis-service.htm): Specialized bottom-up and middle-down mass spectrometry decoding complex combinatorial histone code modifications (methylation, acetylation, phosphorylation). - [Palmitoylation Site Identification Service](https://www.creative-proteomics.com/services/palmitoylation-site-identification-service.htm): Acyl-biotin exchange (ABE) and resin-assisted capture (RAC) mass spectrometry mapping reversible cysteine S-palmitoylation regulating membrane anchoring. - [Characterization of Protein SUMOylation](https://www.creative-proteomics.com/services/characterization-of-protein-sumoylation.htm): Immunoaffinity enrichment and high-resolution MS/MS identifying SUMO-1/2/3 modification sites modulating nuclear transport, transcription, and DNA repair. - [Phosphoproteomics Service](https://www.creative-proteomics.com/services/phosphoproteomics-service.htm): TiO2 and Fe-NTA immobilized metal affinity chromatography (IMAC) enrichment paired with LC-MS/MS mapping global phosphorylation cascades in cell signaling. - [Phosphorylation Site Identification Service](https://www.creative-proteomics.com/services/phosphorylation.htm): High-confidence site localization of phosphorylated serine, threonine, and tyrosine residues resolving kinase-substrate regulatory networks. - [Ubiquitination-2](https://www.creative-proteomics.com/services/ubiquitination-2.htm): Anti-diGly (K-epsilon-GG) antibody enrichment and tandem MS identifying ubiquitination loci and ubiquitin-proteasome pathway dynamics. - [S-Nitrosylation Service](https://www.creative-proteomics.com/services/s-nitrosylation.htm): Biotin-switch chemistry and mass spectrometry detecting reversible cysteine S-nitrosylation (SNO) mediating nitric oxide-driven signaling pathways. - [Methylation-2](https://www.creative-proteomics.com/services/methylation-2.htm): High-resolution tandem MS determining mono-, di-, and tri-methylation sites on lysine and arginine residues across regulatory and structural proteins. - [N-acetylation](https://www.creative-proteomics.com/services/n-acetylation.htm): Chemical enrichment and LC-MS/MS identifying alpha-N-terminal and epsilon-lysine acetylation regulating protein stability, folding, and gene transcription. - [Di-Sulfide Bond Localization-2](https://www.creative-proteomics.com/services/di-sulfide-bond-localization-2.htm): Differential alkylation and non-reduced mass spectrometry mapping intra- and inter-chain disulfide bonds and detecting mispaired isoforms in biotherapeutics. - [Redox Proteomics Service](https://www.creative-proteomics.com/services/redox-proteomics-service.htm): Global profiling of reversible cysteine redox modifications (disulfides, sulfenic acids, nitrosylation) tracking cellular oxidative stress and antioxidant signaling. ## Comprehensive Lipidomics & Fatty Acid Profiling - [Lipidomics Service](https://www.creative-proteomics.com/services/lipidomics-profiling.htm): Full-spectrum lipid extraction, high-resolution LC-MS/MS profiling, and structural lipidome characterization across cellular and biological matrices. - [Untargeted Lipidomics](https://www.creative-proteomics.com/services/untargeted-lipidomics.htm): Global unbiased lipid profiling surveying thousands of molecular lipid species across major classes including phospholipids, sphingolipids, and neutral lipids. - [Plant Untargeted Lipidomics](https://www.creative-proteomics.com/services/plant-untargeted-lipidomics.htm): Specialized extraction and mass spectrometry resolving galactolipids (MGDG, DGDG), plant sterols, and storage lipids across botanical tissues and crops. - [Yeast Untargeted Lipidomics](https://www.creative-proteomics.com/services/yeast-untargeted-lipidomics.htm): High-coverage lipidome profiling tailored for yeast models, analyzing complex sphingolipids, ergosterol, and membrane remodeling under industrial or stress conditions. - [Mammals Untargeted Lipidomics](https://www.creative-proteomics.com/services/mammals-untargeted-lipidomics.htm): Deep lipidome characterization across mammalian organs, biofluids, and cell cultures for metabolic disease modeling and preclinical research. - [MALDI Imaging Lipidomics Service](https://www.creative-proteomics.com/services/maldi-imaging-lipidomics-service.htm): High-spatial-resolution MALDI mass spectrometry imaging visualizing the 2D territorial distribution of lipid species across intact frozen tissue sections. - [Targeted Lipidomics](https://www.creative-proteomics.com/services/targeted-lipidomics.htm): Targeted MRM/PRM quantitation utilizing internal isotope-labeled standards to quantify predefined functional lipid classes with wide dynamic range. - [Medium-chain and Long-chain Fatty Acids Analysis Service](https://www.creative-proteomics.com/services/medium-chain-and-long-chain-fatty-acids-analysis-service.htm): GC-MS and LC-MS quantitation measuring medium-chain (C6-C12) and long-chain (C14-C20) fatty acid profiles and saturation indices in biological specimens. - [Very long Chain Fatty Acids Analysis Service](https://www.creative-proteomics.com/services/very-long-chain-fatty-acids-analysis-service.htm): Targeted chromatographic and mass spectrometric assays quantifying very-long-chain fatty acids (C22+) associated with peroxisomal metabolism and sphingolipid biology. - [Cardiolipins Analysis Service](https://www.creative-proteomics.com/services/cardiolipins-analysis-service.htm): Targeted high-resolution LC-MS/MS measuring tetralinoleoyl cardiolipin and oxidized cardiolipin species reflecting mitochondrial bioenergetics and membrane integrity. - [Eicosanoid Metabolites (Urine) Analysis Service](https://www.creative-proteomics.com/services/eicosanoid-metabolites-urine-analysis-service.htm): Ultra-sensitive targeted LC-MS/MS measuring urinary prostaglandin, thromboxane, and leukotriene metabolites tracking systemic inflammatory status. - [Short Chain Fatty Acids Analysis Service](https://www.creative-proteomics.com/services/short-chain-fatty-acids-analysis-service.htm): Derivatization-coupled GC-MS/MS accurately quantifying gut microbiota-derived volatile fatty acids (acetate, propionate, butyrate, valerate) in stool and plasma. - [Total Fatty Acids Analysis Service](https://www.creative-proteomics.com/services/total-fatty-acids-analysis-service.htm): Transesterification GC-MS (FAME analysis) quantifying total saponifiable fatty acid composition and omega-3/omega-6/omega-9 nutritional ratios. - [Eicosanoids Analysis Service](https://www.creative-proteomics.com/services/eicosanoids-analysis-service.htm): Targeted chiral LC-MS/MS quantifying arachidonic acid cascade metabolites (prostaglandins, leukotrienes, lipoxins, resolvins) modulating immune signaling. - [Ceramides Analysis Service](https://www.creative-proteomics.com/services/ceramides-analysis-service.htm): Targeted LC-MS/MS profiling ceramide molecular species and dihydroceramides mediating cellular apoptosis, senescence, and insulin resistance. - [Sterol Lipids Analysis Service](https://www.creative-proteomics.com/services/sterol-lipids-analysis-service.htm): GC-MS and LC-MS/MS measuring cholesterol, oxysterols, phytosterols, and bile acid precursors across biological and nutritional matrices. - [Phospholipids Analysis Service](https://www.creative-proteomics.com/services/phospholipids-analysis-service.htm): Comprehensive profiling of phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylserine (PS), and phosphatidylinositol (PI) polar headgroups and acyl chains. - [PLFAs Analysis Service](https://www.creative-proteomics.com/services/plfas-analysis-service.htm): Phospholipid fatty acid analysis characterizing environmental microbial community structure, fungal-to-bacterial ratios, and viable biomass. - [Unsaturated Fatty Acids Analysis Service](https://www.creative-proteomics.com/application/unsaturated-fatty-acids-analysis-service.htm): High-resolution GC-MS resolving positional and geometric cis/trans isomers of mono- and polyunsaturated fatty acids (MUFAs and PUFAs). ## Untargeted & Targeted Metabolomics - [Metabolomics Service](https://www.creative-proteomics.com/services/metabolomics-service.htm): Broad-scale qualitative and quantitative metabolomics utilizing UHPLC-Q-TOF/MS and GC-MS platforms for cellular metabolism and phenotype exploration. - [Targeted Metabolomics Service](https://www.creative-proteomics.com/services/targeted-metabolomics-2.htm): Hypothesis-driven absolute quantification of defined metabolite panels utilizing triple quadrupole MRM assays with authentic internal standards. - [Targeted Metabolomics](https://www.creative-proteomics.com/services/targeted-metabolomics.htm): High-precision MRM/PRM targeted quantitation delivering wide dynamic range, high sensitivity, and reproducibility for metabolic pathway evaluation. - [Untargeted Metabolomics](https://www.creative-proteomics.com/services/untargeted-metabolomics.htm): High-resolution discovery metabolomics capturing thousands of metabolic features across broad biological matrices to uncover altered metabolic pathways. - [Plant Metabolomics Service](https://www.creative-proteomics.com/services/plant-metabolomics-service.htm): Customized botanical extraction and mass spectrometry profiling primary metabolites, specialized secondary metabolites, and phytohormones in plant specimens. - [Plant Untargeted Metabolomics](https://www.creative-proteomics.com/services/plant-untargeted-metabolomics.htm): Unbiased broad-spectrum metabolome discovery evaluating plant physiological adaptation, biotic/abiotic stress responses, and developmental shifts. - [Plant Targeted Metabolomics Service](https://www.creative-proteomics.com/services/plant-targeted-metabolomics-service.htm): Targeted quantitative assays profiling specific botanical classes including flavonoids, alkaloids, terpenes, and glucosinolates in crop and medicinal plants. - [Serum Untargeted Metabolomics](https://www.creative-proteomics.com/services/serum-untargeted-metabolomics.htm): Optimized protein precipitation and dual-column (HILIC/RP) LC-MS profiling circulating small-molecule metabolites in human and mammalian serum. - [Urine Untargeted Metabolomics](https://www.creative-proteomics.com/services/urine-untargeted-metabolomics.htm): High-throughput metabolomic fingerprinting of non-invasive urine specimens measuring hydrophilic excretion products and systemic metabolic shifts. - [Cerebrospinal Fluid Untargeted Metabolomics](https://www.creative-proteomics.com/services/cerebrospinal-fluid-untargeted-metabolomics.htm): Low-volume ultra-sensitive metabolome profiling directly reflecting central nervous system biochemistry, neurochemical pathways, and blood-brain barrier function. - [Exosome Untargeted Metabolomics](https://www.creative-proteomics.com/services/exosome-untargeted-metabolomics.htm): Specialized extraction and high-resolution LC-MS identifying metabolic small molecules encapsulated within purified extracellular vesicles. - [Amino Acid Analysis (AAA)](https://www.creative-proteomics.com/services/amino-acid-analysis-aaa.htm): Classical ion-exchange chromatography with post-column ninhydrin derivatization and HPLC-MS delivering certified absolute quantitation of 20+ proteinogenic amino acids. - [Amino Acids and Derivatives Analysis Service](https://www.creative-proteomics.com/services/amino-acids-and-derivatives-analysis-service.htm): Targeted LC-MS/MS quantifying free amino acids, methylated arginines, hydroxyproline, GABA, and intermediate metabolites across biological fluids. - [Amino Acid Composition Analysis Service](https://www.creative-proteomics.com/services/amino-acid-composition-analysis-service.htm): Complete acid and alkaline protein hydrolysis determining molar amino acid ratios and total protein/peptide content in biological and bioprocess samples. - [Branched Chain Amino Acids Analysis Service](https://www.creative-proteomics.com/services/branched-chain-amino-acids-analysis-service.htm): Targeted MRM quantitation of leucine, isoleucine, and valine along with keto-acid catabolites reflecting mTOR signaling, protein synthesis, and metabolic regulation. - [Water-soluble Vitamins and Fat-soluble Vitamins Analysis Service](https://www.creative-proteomics.com/services/water-soluble-vitamins-and-fat-soluble-vitamins-analysis-service.htm): Simultaneous and coordinated multi-analyte chromatographic quantitation profiling both hydrophilic and lipophilic vitamin families in biological matrices. - [Water Soluble Vitamins Analysis Service](https://www.creative-proteomics.com/services/water-soluble-vitamins-analysis-service.htm): Targeted LC-MS/MS quantifying vitamin B-complex (B1, B2, B3, B5, B6, B7, B9, B12) and vitamin C (ascorbic acid) cofactors. - [Fat Soluble Vitamins Analysis Service](https://www.creative-proteomics.com/services/fat-soluble-vitamins-analysis-service.htm): Reversed-phase LC-MS/MS and HPLC-UV determining concentrations of vitamins A, D2/D3, E (tocopherols/tocotrienols), and K1/K2. - [Vitamin-like Compounds Analysis Service](https://www.creative-proteomics.com/services/vitamins-and-vitamin-like-compounds-analysis-service.htm): Targeted quantitation measuring essential vitamin-like cofactors including inositol, carnitine, lipoic acid, and coenzyme Q10. - [Niacin Analysis Service](https://www.creative-proteomics.com/application/niacin-nicotinic-acid-b3-analysis.htm): Targeted mass spectrometric quantitation of nicotinic acid and nicotinamide (Vitamin B3) supporting cellular energy metabolism and DNA repair studies. - [Nicotinamide Analysis Service](https://www.creative-proteomics.com/application/nicotinamide-analysis-service.htm): High-precision chromatographic analysis quantifying nicotinamide levels modulating sirtuin deacetylation and PARP signaling pathways. - [Nicotinamide Adenine Dinucleotide (NAD+) Analysis Service](https://www.creative-proteomics.com/services/nad-metabolites-analysis-service.htm): Targeted LC-MS/MS measurement of intracellular NAD+, NADH, NMN, NR, and NAM resolving cellular redox ratios and longevity enzyme cofactor availability. - [NADP+/NADPH Analysis Service](https://www.creative-proteomics.com/application/nadp-nadph-analysis-service.htm): Rapid, sensitive LC-MS/MS quantitation measuring NADP+ and NADPH concentrations to evaluate reductive biosynthesis and cellular antioxidant defense. - [Coenzyme I Analysis Service](https://www.creative-proteomics.com/application/coenzyme-i-analysis-service.htm): Targeted bioanalysis quantifying Coenzyme I (NAD) pool sizes and oxidized/reduced balance in mitochondrial metabolic research. - [Coenzyme Q10 Analysis Service](https://www.creative-proteomics.com/application/coenzyme-q10-analysis-service.htm): HPLC-ECD and LC-MS/MS determination of ubiquinone and ubiquinol (reduced CoQ10) levels in mitochondrial membrane preparations and plasma. - [Bile Acids Analysis Service](https://www.creative-proteomics.com/services/bile-acids-analysis-service.htm): Targeted negative-mode LC-MS/MS measuring 40+ primary, secondary, and conjugated bile acids evaluating gut microbiome-liver metabolic interactions. - [Organic Acids Analysis Service](https://www.creative-proteomics.com/services/organic-acids-analysis-service.htm): GC-MS and ion chromatography quantifying aliphatic, aromatic, and carboxylic organic acids across microbial cultures, food products, and biological fluids. - [Organic Acid Analysis Service](https://www.creative-proteomics.com/application/organic-acid-analysis-service.htm): Targeted profiling of low-molecular-weight organic acids providing insights into energy metabolism dysregulation and inborn metabolic research models. - [Polyphenols Analysis Service](https://www.creative-proteomics.com/services/polyphenols-analysis-service.htm): Targeted UPLC-MS/MS profiling phenolic acids, anthocyanins, stilbenes, and tannins across nutritional, botanical, and metabolic samples. - [Flavonoids Analysis Service](https://www.creative-proteomics.com/services/flavonoids-analysis-service.htm): Qualitative and quantitative characterization of flavones, flavonols, flavanones, isoflavones, and their glycosylated conjugates in botanical extracts. - [Carotenoids Analysis Service](https://www.creative-proteomics.com/services/carotenoids-analysis-service.htm): YMC C30 reversed-phase HPLC-DAD/MS measuring alpha/beta-carotene, lycopene, lutein, zeaxanthin, and astaxanthin in tissues and nutritional products. - [Acyl CoAs Analysis Service](https://www.creative-proteomics.com/services/acyl-coas-analysis-service.htm): Targeted LC-MS/MS quantifying short-, medium-, and long-chain acyl-CoA thioesters regulating fatty acid beta-oxidation and acetyl group transfer. - [Deoxynucleotide triphosphates (dNTPs) and cyclic-di-AMP Analysis Service](https://www.creative-proteomics.com/services/deoxynucleotide-triphosphates-dntps-and-cyclic-di-amp-analysis-service.htm): Ion-pair LC-MS/MS measuring cellular dNTP pools (dATP, dCTP, dGTP, dTTP) and bacterial cyclic second messenger signaling molecules (c-di-AMP). - [Nucleoside/Nucleotide Analysis Service](https://www.creative-proteomics.com/services/nucleoside-nucleotide-analysis-service.htm): Targeted chromatography and mass spectrometry profiling purine and pyrimidine bases, ribo-/deoxyribonucleosides, and mono/di/tri-phosphates. - [Nucleotide Sugars Analysis Service](https://www.creative-proteomics.com/services/nucleotide-sugars-analysis-service.htm): Ion-exchange and HILIC-MS/MS quantifying UDP-Glc, UDP-GlcNAc, GDP-Man, and CMP-Neu5Ac donor substrates for protein and lipid glycosylation. - [Low Molecular Weight Sugars Analysis Service](https://www.creative-proteomics.com/services/low-molecular-weight-sugars.htm): High-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD) resolving simple mono- and disaccharides. - [Sugar Alcohols Analysis Service](https://www.creative-proteomics.com/services/sugar-alcohols-analysis-service.htm): GC-MS and HPLC profiling polyols (sorbitol, mannitol, xylitol, erythritol, myo-inositol) in osmotic regulation and nutritional formulations. - [Amino Sugars Analysis Service](https://www.creative-proteomics.com/services/amino-sugars-analysis-service.htm): Targeted chromatographic determination of glucosamine, galactosamine, and muramic acid reflecting extracellular matrix and peptidoglycan turnover. - [Carbohydrate Metabolism Analysis Service](https://www.creative-proteomics.com/application/carbohydrate-metabolism-analysis-service.htm): Comprehensive pathway profiling tracking carbohydrate processing, hexose conversions, and downstream glycolytic flux in cellular systems. - [Glycolysis Pathway Analysis Service](https://www.creative-proteomics.com/services/glycolysis-pathway-analysis-service.htm): Targeted LC-MS/MS profiling key glycolytic intermediates (G6P, F6P, F1,6BP, 3-PGA, PEP, pyruvate, lactate) evaluating the Warburg effect and cellular energetics. - [TCA Cycle Analysis Service](https://www.creative-proteomics.com/services/tca-cycle-analysis-service.htm): Quantitative MS profiling citrate, isocitrate, alpha-ketoglutarate, succinate, fumarate, malate, and oxaloacetate in mitochondrial respiration studies. - [Central Carbon Metabolism Analysis Service](https://www.creative-proteomics.com/services/central-carbon-metabolism-analysis-service.htm): Integrated multi-pathway quantitation covering glycolysis, TCA cycle, and pentose phosphate pathway providing a complete overview of core energetic metabolism. - [Pentose Phosphate Pathway Analysis Service](https://www.creative-proteomics.com/services/pentose-phosphate-pathway-analysis-service.htm): Targeted LC-MS/MS determining 6-phosphogluconate, ribose-5-phosphate, and sedoheptulose-7-phosphate reflecting NADPH generation and nucleotide synthesis. - [Energy Metabolism Pathway Analysis Services](https://www.creative-proteomics.com/services/energy-metabolism-pathways-analysis-service.htm): Systematic profiling of cellular high-energy adenylates, creatine phosphate, and metabolic cofactors defining cellular energy charge. - [Mevalonate Pathway Analysis Service](https://www.creative-proteomics.com/services/mevalonate-pathway-analysis-service.htm): Targeted mass spectrometry measuring HMG-CoA, mevalonate, and isoprenoid pyrophosphates regulating cholesterol biosynthesis and protein prenylation. - [One-carbon Metabolism Analysis Service](https://www.creative-proteomics.com/services/one-carbon-metabolism-analysis-service.htm): Targeted profiling of methionine, homocysteine, choline, betaine, serine, and glycine coordinating nucleotide synthesis and epigenetic methylation. - [Methionine Cycle Analysis Service](https://www.creative-proteomics.com/services/methionine-cycle-analysis-service.htm): Accurate LC-MS/MS quantitation of SAM, SAH, methionine, and homocysteine measuring cellular methylation capacity and sulfur amino acid homeostasis. - [Folate Cycle Analysis Service](https://www.creative-proteomics.com/services/folate-cycle-analysis-service.htm): Targeted LC-MS/MS measuring tetrahydrofolate (THF), 5-methyl-THF, and formyl-THF species essential for purine synthesis and thymidylate generation. - [Urea Cycle Metabolism Analysis Service](https://www.creative-proteomics.com/services/urea-cycle-metabolism-analysis-service.htm): Targeted quantitative profiling of ornithine, citrulline, argininosuccinate, arginine, and urea evaluating hepatic nitrogen clearance and ammonia detoxification. - [Tryptophan Metabolism Analysis Service](https://www.creative-proteomics.com/services/tryptophan-metabolism-analysis-service.htm): Simultaneous LC-MS/MS quantitation of the kynurenine pathway (kynurenine, kynurenic acid, quinolinic acid) and serotonin pathway regulating neuro-immune signaling. - [Tryptamine Analysis Service](https://www.creative-proteomics.com/application/tryptamine-analysis-service.htm): Sensitive targeted determination of trace indoleamine alkaloid tryptamine and related monoamine neurotransmitter precursors in neural and gut models. - [Neurotransmitters Analysis Service](https://www.creative-proteomics.com/services/neurotransmitters-analysis-service.htm): Multi-analyte LC-MS/MS quantifying monoamines (dopamine, serotonin, norepinephrine), amino acid neurotransmitters (glutamate, GABA, glycine), and acetylcholine. - [Biogenic Amine Analysis Service](https://www.creative-proteomics.com/application/biogenic-amine-analysis-service.htm): Chromatographic quantitation of histamine, tyramine, cadaverine, putrescine, and spermidine in food safety, toxicology, and biological samples. - [Polyamines Analysis Service](https://www.creative-proteomics.com/services/polyamines-analysis-service.htm): Dansyl chloride derivatization coupled with LC-MS/MS measuring putrescine, spermidine, and spermine regulating cell growth, autophagy, and translation. - [Choline and Choline Metabolites Analysis Service](https://www.creative-proteomics.com/services/choline-and-choline-metabolites-analysis-service.htm): Targeted quantitation of free choline, phosphocholine, glycerophosphocholine, betaine, and acetylcholine supporting membrane and neurochemical studies. - [SAM and SAH Analysis Service](https://www.creative-proteomics.com/services/sam-and-sah-analysis-service.htm): High-precision LC-MS/MS measuring S-adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH) and calculating the SAM/SAH methylation index. - [Ubiquinone Analysis Service](https://www.creative-proteomics.com/services/ubiquinone-analysis-service.htm): Reversed-phase chromatographic quantitation of oxidized ubiquinone (CoQ10) in mitochondrial bioenergetics and dietary supplement formulations. - [GSH and GSSG Analysis Service](https://www.creative-proteomics.com/services/gsh-and-gssg.htm): Thiol-derivatization LC-MS/MS accurately quantifying reduced glutathione (GSH) and oxidized glutathione (GSSG) to measure cellular redox potential. - [Adenosine Triphosphate Analysis Service](https://www.creative-proteomics.com/application/adenosine-triphosphate-analysis-service.htm): Direct chromatographic and mass spectrometric determination of ATP, ADP, and AMP concentrations evaluating mitochondrial efficiency and cellular viability. - [Meat Biomarkers (TMAO)](https://www.creative-proteomics.com/services/meat-biomarkers-tmao.htm): Targeted LC-MS/MS quantitation of trimethylamine N-oxide (TMAO), betaine, and choline investigating dietary gut microbiome-cardiovascular metabolic axes. - [Aldehydes Analysis Service](https://www.creative-proteomics.com/services/aldehydes-analysis-service.htm): DNPH derivatization coupled with HPLC-UV/MS quantifying formaldehyde, acetaldehyde, malondialdehyde (MDA), and 4-HNE in lipid peroxidation studies. - [Metals (Metallomics)](https://www.creative-proteomics.com/services/metals-metallomics.htm): High-resolution ICP-MS multi-elemental fingerprinting measuring essential trace metals (Fe, Cu, Zn, Mn, Se) and toxic heavy metals in biological samples. - [Metabolic Flux Analysis (MFA)-2](https://www.creative-proteomics.com/services/metabolic-flux-analysis-mfa-2.htm): Stable isotope tracing (13C, 15N) coupled with mass isotopomer distribution analysis (MIDA) quantifying dynamic in vivo metabolic reaction rates and fluxes. - [Plant Primary Metabolites Analysis Service](https://www.creative-proteomics.com/services/plant-primary-metabolites-analysis-service.htm): GC-MS and LC-MS profiling essential sugars, amino acids, and organic acids sustaining fundamental plant growth and photosynthesis. - [Plant Secondary Metabolites Analysis Service](https://www.creative-proteomics.com/services/plant-secondary-metabolites-analysis-service.htm): Broad-spectrum qualitative and quantitative screening of specialized plant metabolites including terpenes, phenolics, glucosinolates, and alkaloids. - [Plant Hormones Analysis Service](https://www.creative-proteomics.com/application/plant-hormones-analysis-service.htm): Targeted profiling of multiple phytohormone classes regulating botanical defense, seed germination, root development, and environmental stress responses. - [Plant Hormone Analysis Service](https://www.creative-proteomics.com/services/plant-hormone-analysis-service.htm): High-sensitivity LC-MS/MS multi-hormone panel quantifying auxins (IAA), cytokinins, abscisic acid (ABA), jasmonates (JA), and salicylic acid (SA). - [Gibberellin Analysis Service](https://www.creative-proteomics.com/application/gibberellin-analysis-service.htm): Targeted LC-MS/MS profiling bioactive gibberellins (GA1, GA3, GA4, GA7) and precursor/catabolite intermediates regulating stem elongation and flowering. ## Integrated Multi-Omics & Systems Biology - [Multi-omics Integrative Services](https://www.creative-proteomics.com/services/multi-omics-integrative-services.htm): Unified computational systems biology platforms co-analyzing multi-layered genomics, transcriptomics, proteomics, and metabolomics datasets. - [Integrated Transcriptomics and Metabolomics Analysis](https://www.creative-proteomics.com/services/integrated-transcriptomics-and-metabolomics-analysis.htm): Correlating differential mRNA expression with downstream metabolite shifts to elucidate transcriptional reprogramming of metabolic pathways. - [Integrated Transcriptomic and Proteomic Analysis](https://www.creative-proteomics.com/services/integrated-transcriptomic-and-proteomic-analysis.htm): Joint RNA-Seq and quantitative LC-MS/MS profiling identifying post-transcriptional buffering, translational efficiency, and protein turnover dynamics. - [Integrated Transcriptomic and Lipidomics Analysis](https://www.creative-proteomics.com/services/integrated-transcriptomic-and-lipidomics-analysis.htm): Linking lipid biosynthetic gene expression with molecular lipid species remodeling in membrane biology and metabolic disease research. - [Integrated Proteomics and Metabolomics Analysis](https://www.creative-proteomics.com/services/integrated-proteomics-and-metabolomics-analysis.htm): Co-profiling enzyme abundance alterations and substrate/product metabolic concentrations to validate biochemical pathway fluxes. - [Integrated Proteomics and Lipidomics Analysis](https://www.creative-proteomics.com/services/integrated-proteomics-and-lipidomics-analysis.htm): Investigating lipid-metabolizing enzyme expression alongside lipidomic changes to dissect cellular lipid signaling and membrane architecture. - [Integrated Transcriptomic, Proteomic, and Metabolomic Analysis](https://www.creative-proteomics.com/services/integrated-transcriptomic-proteomic-and-metabolomic-analysis.htm): Holistic triple-omics cross-validation revealing molecular regulatory cascades spanning gene transcription, protein translation, and phenotype execution. - [Integrated Metagenomic and Metabolomic Analysis](https://www.creative-proteomics.com/services/integrated-metagenomic-and-metabolomic-analysis.htm): Co-analyzing microbial metagenomic functional gene repertoires with host and gut metabolic profiles to dissect host-microbiota metabolic axes. - [Integrated Metabolomics and Microbiomics Analysis](https://www.creative-proteomics.com/services/integrated-metabolomics-and-microbiomics-analysis.htm): Correlating 16S/metagenomic taxonomic abundances with fecal/serum metabolomes to identify bioactive microbial metabolites influencing host physiology. ## Glycomics, Glycopeptides & Glycan Profiling - [Overview of Glycomics Service](https://www.creative-proteomics.com/services/glycomics-service.htm): Comprehensive glycomics contract research offering glycan release, chromatographic profiling, linkage analysis, and glycan microarray screening. - [Glycopeptides Analysis](https://www.creative-proteomics.com/services/glycopeptides-analysis.htm): Intact glycopeptide mass spectrometry (HCD/ETD/EThcD) deciphering amino acid peptide backbone sequences and attached glycan compositions concurrently. - [N-Glycan Profiling Service](https://www.creative-proteomics.com/services/n-glycan-profiling-service.htm): PNGase F release and 2-AB/procainamide fluorescent labeling UPLC-FLR/Q-TOF profiling biotherapeutic monoclonal antibody Fc N-glycosylation. - [O-Glycan Profiling Service](https://www.creative-proteomics.com/services/o-glycan-profiling-service.htm): Chemical reductive beta-elimination and mass spectrometry mapping mucin-type O-glycan cores, branching patterns, and terminal modifications. ## Peptide & Protein Sequencing and Degradation - [Sequence Analysis of Peptides or Proteins](https://www.creative-proteomics.com/services/sequence-analysis-of-peptides-or-proteins.htm): Complete primary sequence verification combining enzymatic cleavage, collision-induced dissociation (CID/HCD), and spectral deconvolution. - [N-terminal Edman Degradation Service](https://www.creative-proteomics.com/services/n-terminal-edman-degradation-service.htm): Automated chemical Edman degradation sequencing N-terminal residues and confirming sequence integrity for recombinant proteins and peptides. - [C-Terminal Sequencing Service](https://www.creative-proteomics.com/services/c-terminal-sequencing-service.htm): Carboxypeptidase Y/P/A digestion combined with ladder mass spectrometry identifying C-terminal amino acid sequences and truncation variants. - [Immunopeptidomics Analysis](https://www.creative-proteomics.com/services/immunopeptidomics-analysis.htm): Immunoaffinity isolation of HLA/MHC-peptide complexes coupled with LC-MS/MS discovering naturally presented tumor neoantigens and viral epitopes. ## Biophysical Characterization, Molecular Modeling & Technical Services - [Molecular Docking Service](https://www.creative-proteomics.com/services/molecular-docking-service.htm): High-throughput computational ligand-receptor docking evaluating binding conformations, interaction energies, and virtual screening of drug candidates. - [Molecular Dynamics Simulation Service](https://www.creative-proteomics.com/services/molecular-dynamics-simulation-service.htm): All-atom molecular dynamics simulations (GROMACS, AMBER) probing protein conformational stability, allosteric transitions, and ligand binding dynamics. - [Mass Spectrometry Imaging (MALDI-MSI Analysis) Service](https://www.creative-proteomics.com/technology/mass-spectrometry-imaging-2.htm): Label-free MALDI imaging mass spectrometry mapping the spatial distribution of peptides, lipids, metabolites, and drug molecules directly on intact tissue sections. - [Bioanalysis of DNA Methylations](https://www.creative-proteomics.com/services/bioanalysis-of-dna-methylations.htm): LC-MS/MS absolute quantitation of 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) levels measuring global DNA epigenetic methylation. - [Residual DNA Testing](https://www.creative-proteomics.com/services/residual-dna-testing.htm): Quantitative real-time PCR (qPCR) detecting trace residual host cell genomic DNA in biopharmaceuticals according to regulatory safety standards. - [Ames Test](https://www.creative-proteomics.com/services/ames-test.htm): Bacterial reverse mutation assay (Salmonella typhimurium / E. coli) evaluating mutagenic and genotoxic potential of pharmaceutical chemical candidates. - [Flow Cytometry Service](https://www.creative-proteomics.com/services/flow-cytometry-facs-service.htm): Multi-color flow cytometry and fluorescence-activated cell sorting (FACS) profiling immunophenotypes, cell cycle progression, and receptor expression. - [Host Cell Protein Analysis](https://www.creative-proteomics.com/services/host-cell-protein-analysis.htm): Orthogonal 2D-PAGE, ELISA, and high-sensitivity LC-MS/MS identifying and quantitating residual host cell proteins (HCPs) in biotherapeutics. - [ICP-MS Ionomics Profiling Service](https://www.creative-proteomics.com/services/icp-ms-ionomics-profiling-service.htm): Inductively Coupled Plasma Mass Spectrometry quantifying multi-elemental mineral and metal ion profiles across biological, food, and environmental samples. - [2-DE /SDS-PAGE Protein Identification](https://www.creative-proteomics.com/services/2-de-sds-page-protein-identification.htm): Two-dimensional gel electrophoresis separation followed by in-gel trypsin digestion and MALDI-TOF/MS identifying differential protein spots. - [Exosome Isolation and Purification Service](https://www.creative-proteomics.com/services/exosome-isolation-and-purification-service.htm): Standardized differential ultracentrifugation, size-exclusion chromatography (SEC), and density gradients isolating intact extracellular vesicles. - [2D Electrophoresis Service](https://www.creative-proteomics.com/services/2d-electrophoresis-2.htm): Isoelectric focusing (IEF) combined with SDS-PAGE resolving complex proteomes by both isoelectric point (pI) and molecular weight. - [2D Blue Native / SDS-PAGE for Complex Analysis](https://www.creative-proteomics.com/services/2d-blue-native-sds-page-for-complex-analysis.htm): Blue Native PAGE coupled with second-dimension SDS-PAGE resolving native multi-protein complexes, membrane supercomplexes, and subunit composition. - [Imaging Analysis](https://www.creative-proteomics.com/services/imaging-analysis.htm): High-resolution confocal microscopy, fluorescence imaging, and quantitative image informatics assessing cellular structures and biomarker distributions. - [DLS Based Analysis Service](https://www.creative-proteomics.com/support/dls-based-analysis-service.htm): Dynamic Light Scattering measuring hydrodynamic particle size distribution, polydispersity index (PDI), and aggregation states of proteins and nanoparticles. - [Circular Dichroism Analysis Service](https://www.creative-proteomics.com/support/circular-dichroism-based-analysis-service.htm): Far-UV and near-UV Circular Dichroism (CD) spectroscopy determining secondary and tertiary structural conformations and thermal denaturation profiles. - [Fluorescence Spectroscopy Based Analysis Service](https://www.creative-proteomics.com/support/fluorescence-spectroscopy-based-analysis-service.htm): Intrinsic tryptophan/tyrosine fluorescence and extrinsic fluorescent probe spectroscopy monitoring protein folding, binding events, and conformational shifts. - [DSC based Analysis Service](https://www.creative-proteomics.com/support/dsc-based-analysis-service.htm): Differential Scanning Calorimetry measuring transition midpoint temperatures (Tm) and unfolding enthalpy (delta-H) for protein thermal stability characterization. - [LC-MS MRM Quantification](https://www.creative-proteomics.com/application/lc-ms-mrm-quantification.htm): Targeted triple quadrupole mass spectrometry with multiple reaction monitoring providing certified high-sensitivity quantitation of small molecules and peptides.