AMINO ACID PROFILING

Amino Acids Panel

Amino Acid Profiling — Absolute Quantification

Free amino acids and their derivatives form the immediate pool for protein synthesis and nitrogen metabolism; compositional shifts are closely linked to nutritional status, liver and kidney function, insulin resistance and tumor metabolic reprogramming. This service covers 35+ amino acids, amino-acid derivatives, N-acetylated amino acids and selected small peptides, simultaneously capturing upstream inputs of the urea cycle, BCAA catabolism and one-carbon metabolism — a complete readout of the amino-acid metabolic network in a single injection, suitable for mechanistic studies and large cohorts.

35+
Amino Acids & Derivatives
TARGET COMPOUNDS
3
Classes: Free AA / Derivatives / Peptides
COMPOUND CLASSES
MRM
Isotope-IS Absolute Quantification
ABSOLUTE QUANTIFICATION

Targeted List & Analysis Examples

Targeted List & Analysis Examples
Targeted List (partial)
NO.Chinese NameAbbr.English NameCAS No.
1L-组氨酸HISL-Histidine71-00-1
2L-精氨酸ARGL-Arginine74-79-3
3L-丝氨酸SERL-Serine56-45-1
4甘氨酸GLYGlycine56-40-6
5L-天冬氨酸ASPL-Asparagine56-84-8
6L-谷氨酸GLUL-GlutamicAcid56-86-0
7L-苏氨酸THRL-Threonine72-19-5
8L-丙氨酸ALAL-Alanine56-41-7
9L-脯氨酸PROL-Proline147-85-3
Full list available on request — contact our team.

Technical Specifications

TECHNICAL SPECIFICATIONS
PlatformUHPLC coupled with triple-quadrupole MS (UHPLC-MS/MS)
Ion ModePositive/negative ion switching acquisition
Quantification UnitStandard-curve absolute quantification, ng/mL or ng/g
QCPooled QC samples inserted across the batch to monitor signal drift and stability

Sample Requirements

SAMPLE REQUIREMENTS
Serum / Plasma
50 μL
Tissue
30 mg
Cells
1–5 × 10⁶ cells
Feces / Gut Content
100 mg fresh / 20 mg lyophilized
Urine
50 μL
Exosomes
50 μL
Replicates: cell / microbial samples ≥6 replicates per group; animal samples ≥10 per group; clinical samples ≥50 per group with strictly controlled inclusion criteria. Sampling site, timing and handling must be consistent between experimental and control groups.
Shipping notes: applicable to serum/plasma, various tissues, feces and gut content, urine, saliva, cells / cell culture medium and more. Recommended amounts are for a single experiment — please ship 2–3× the recommended amount; keep sampling sites consistent across groups for tissue samples; ship on dry ice or cold chain.

Workflow

WORKFLOW
1
Consultation
Study goals / panel selection
2
Proposal & Quote
Targets / timeline / agreement
3
Sample Intake
Cold chain / pre-check / labeling
4
Experiment
Acquisition / QC
5
Delivery
Quantification + interpretation + raw data
Analysis deliverables: amino-acid network classification and derivative proportion analysis · absolute quantification table for all metabolites (abundance + units) · intergroup T-test with fold change · PCA / PLS-DA modeling and hierarchical clustering · KEGG annotation and pathway enrichment · full analysis report and raw data.

Analysis Examples

ANALYSIS EXAMPLES
Example figures are generated from real project data; actual figures and analyses depend on the detection panel and study plan.
T-test Bar Chart
T-test Bar Chart
All metabolites sorted by ascending p-value; grouped bars show group means ± SD with p-values annotated beside the bars.
Hierarchical Clustering Heatmap
Hierarchical Clustering Heatmap
Z-score normalized abundance patterns of all metabolites; rows ordered by hierarchical clustering — red for high, blue for low abundance.
Disease Association Bar Chart
Disease Association Bar Chart
Known metabolite–disease associations mined from HMDB and other databases, ranked by the number of associated metabolites.
Metabolite Abundance Analysis
Metabolite Abundance Analysis
Faceted boxplots of significantly different metabolites between groups; intergroup comparison by Welch's t-test.
Bar Chart Analysis
Bar Chart Analysis
Per-sample bar charts of differential metabolites, visualizing group differences and individual dispersion.

References

REFERENCES
[1] CASADO M, SIERRA C, BATLLORI M, et al. A targeted metabolomic procedure for amino acid analysis in different biological specimens by ultra-high-performance liquid chromatography-tandem mass spectrometry[J]. Metabolomics, 2018, 14(6): 76.
[2] ZHU B, LI L, WEI H, et al. A simultaneously quantitative profiling method for 40 endogenous amino acids and derivatives in cell lines using hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry[J]. Talanta, 2020, 207: 120256.

Applications

APPLICATIONS
Nutritional Status & Metabolic AssessmentHepatic & Renal Metabolic FunctionTumor Amino-Acid ReprogrammingInsulin Resistance ResearchNeuropsychiatric Metabolism Research

FAQ

FAQ
How long does a Amino Acids Panel project take?
Mature targeted panels typically take 1-3 weeks; untargeted projects take 2-4 weeks (counted from sample receipt and QC approval). The exact timeline is confirmed in writing before project start, and progress is trackable on the OmicsHub cloud platform.
What if my sample amount is below the recommendation?
Please do not dilute your samples. Low-input samples can often be accommodated by adjusting the preparation workflow — tell us the actual amount and our technical team will assess feasibility and note adjustments in the study plan.
Can I add targets to an existing panel?
Yes. Mature panels support on-demand additions; novel analytes outside the list can be implemented through custom method development (requires standards and extra validation time) — see our Custom Targeted Metabolomics service.
What samples do you need for Amino Acids Panel?
Serum/plasma ≥100 μL (fasting, no haemolysis), tissue ≥50 mg (snap-frozen), cells ≥1×10⁶ (medium washed off), urine ≥200 μL. Keep fasting time consistent, aliquot into single-use volumes and avoid freeze–thaw. Full guidance: Technical Resources → Sample Guide.

Delivery timing: sample shipping, customs declaration and similar steps may extend turnaround; actual project timelines prevail.

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