H-D-Glu-NH2

H-D-Glu-NH2 is the deuterated amino acid derivative of glutamic acid in which the alpha-amino group is present as a free primary amine (NH2) and the side-chain carboxyl group remains as an amine-compatible functionality typical of glutamate chemistry. The molecule contains a chiral glutamate backbone with stereochemical information consistent with D-glutamic acid, and the deuterium incorporation enables mass-shift tracking without changing the core amino acid connectivity. The presence of both an amino group and a carboxylic acid functionality supports salt formation, acid-base equilibria, and coupling chemistry after appropriate activation or protection. The resulting deuterated, stereodefined glutamate building block serves as a biochemical research intermediate and analytical tracer for studying amino acid metabolism, peptide processing, and deuterium-resolved reaction pathways.

1. Isotope Tracing Studies

H-D-Glu-NH2 is applied in isotope-labeling workflows for biochemical research and analytical method development where deuterium incorporation is used to follow glutamate handling. The deuterated stereochemistry of the D-glutamate backbone enables discrimination of labeled versus unlabeled species during LC-MS or MS/MS analysis, while the free alpha-amino group and glutamate side-chain carboxyl functionality support conversion into relevant metabolites or peptide forms. The compound can be used to prepare deuterated glutamate derivatives that participate in transamination, decarboxylation, or enzymatic substrate turnover studies, allowing mass-resolved tracking of reaction progress. Downstream utility includes generating labeled standards for quantifying glutamate flux and validating analytical selectivity in amino acid and peptide assays.

2. Peptide Coupling Research

H-D-Glu-NH2 is suitable for peptide synthesis research that requires a D-glutamate residue with isotopic labeling for mechanistic studies of amide bond formation and peptide processing. The glutamate motif provides a reactive alpha-amino group for coupling after temporary protection or activation, while the side-chain carboxyl group can be selectively protected to control chemoselectivity during sequential assembly. Deuterium labeling enables monitoring of incorporation and cleavage events in peptide fragments, supporting studies of protease specificity, peptidase kinetics, and stereochemical retention or scrambling during synthesis and degradation. The amino acid derivative can be carried through protected amino acid strategies to yield deuterated peptide building blocks for downstream fragment generation and structure verification.

3. Chemical Biology Labeling

H-D-Glu-NH2 is used in chemical biology contexts where glutamate recognition, transport, or metabolic conversion can be interrogated using a deuterated stereodefined probe. The combination of a primary amine and a carboxyl-bearing side chain supports derivatization into conjugation-ready intermediates, including activated esters or amide-forming derivatives after appropriate functional group masking. Deuterium labeling can be leveraged to distinguish labeled conjugates from background signals in mass-based imaging or targeted quantification of biomolecule-associated glutamate species. The resulting labeled glutamate-containing constructs can serve as tools for mapping pathway-level transformations and for validating binding or uptake hypotheses without requiring changes to the glutamate scaffold.

4. Analytical Reference Standards

H-D-Glu-NH2 functions as a deuterated reference material for analytical research targeting amino acid quantification, isotope-ratio measurements, and peptide-related mass spectral assignments. The stereodefined D-glutamate structure and the deuterium mass shift improve confidence in identifying glutamate-derived ions and fragment patterns, particularly when resolving isomeric or isotopically similar analytes. The free amine and carboxyl functionality enable conversion into derivatized forms compatible with common analytical workflows, including derivatization strategies that stabilize ionization or improve chromatographic behavior. Downstream applications include supporting calibration curves, retention-time matching, and method validation for glutamate and glutamate-containing peptide fragments.

5. Process Chemistry Intermediate

H-D-Glu-NH2 is relevant to process chemistry intermediate preparation where deuterated amino acid feedstocks are required for scalable synthesis of labeled building blocks. The glutamate functional group set, featuring an amino group and carboxyl-bearing side chain, supports predictable protection-group selection and controlled activation chemistry to enable manufacturing-compatible routes. Deuterium incorporation allows downstream labeling of peptides, peptidomimetics, or analytical reagents while maintaining the stereochemical identity of the D-glutamate unit. The compound can be employed as a chiral synthetic intermediate for producing deuterated protected amino acid derivatives that integrate into industrial fine chemical synthesis and isotope-tracer supply chains.

1. Application of human liver organoids as a patient-derived primary model for HBV infection and related hepatocellular carcinoma

2. Adipose tissue is a key organ for the beneficial effects of GLP-2 metabolic function

3. The effect of B-type allatostatin neuropeptides on crosstalk between the insect immune response and cold tolerance

4. Constitutive and inflammation-dependent antimicrobial peptides produced by epithelium are differentially processed and inactivated by the commensal Finegoldia magna and the pathogen Streptococcus pyogenes

5. Store-operated Ca2+ entry sustains the fertilization Ca2+ signal in pig eggs