H-Gly-AMC is a glycine-based amino acid amide derivative in which the glycine α-amino group is acylated (H-Gly-) and the C-terminus is linked to 7-amino-4-methylcoumarin (AMC) through an amide bond, forming a fluorescent substrate-like conjugate. The molecule contains an amide linkage to the coumarin fluorophore while retaining the glycine methylene side chain (-CH2-) and the characteristic coumarin aromatic system, with stereochemistry not specified in the product name. H-Gly-AMC is employed in analytical and biochemical research contexts where AMC-bearing peptide or amino acid conjugates are used as fluorogenic reporters for monitoring cleavage or processing events in solution-phase assays.
H-Gly-AMC is a glycine-based fluorogenic amide in which the amino acid portion is coupled to 7-amino-4-methylcoumarin (AMC) through an amide linkage, yielding a compact, chiral-neutral substrate scaffold with a primary amino group on the coumarin ring and a secondary amide carbonyl that can participate in enzyme recognition. The glycine residue provides a minimal peptide-like handle that can be accommodated by proteases and peptidases, while the AMC chromophore enables sensitive optical readout upon cleavage or chemical transformation. The molecule's aromatic coumarin system and conjugated lactone environment support strong fluorescence behavior, and the presence of an N-acylated amino acid motif makes it compatible with peptide-chemistry derivatization strategies. As a synthetic intermediate and analytical reagent, H-Gly-AMC is well aligned with downstream preparation of substituted coumarin-tagged substrates, calibration standards, and structure-defined peptidomimetic probes.
1. Protease Activity Assays
H-Gly-AMC is used in enzyme kinetics and biochemical screening workflows where glycine-terminated AMC amides serve as fluorogenic substrates for proteases and peptidases. The amide bond connecting the glycine carbonyl region to the AMC moiety functions as the cleavage site, and the coumarin fluorophore provides a measurable signal change that correlates with enzymatic turnover. The small glycine side chain supports binding in active sites that prefer short peptide contexts, enabling structure-informed comparisons across substrate series. H-Gly-AMC can be applied to assay development, inhibitor profiling, and mechanistic studies that rely on peptide bond recognition at the glycine level, supporting routine analytical research and biochemical method optimization.
2. Enzyme Inhibitor Screening
H-Gly-AMC is applied in drug discovery and chemical biology research programs focused on identifying small-molecule or peptide-like inhibitors that modulate protease activity. The glycine-AMC amide architecture presents a defined recognition element for active-site binding, while the fluorescent coumarin tag allows monitoring of inhibition as a function of substrate cleavage. The N-acylated amino acid motif enables systematic SAR studies by pairing H-Gly-AMC with inhibitor libraries and orthogonal substrate analogs. The resulting inhibitor characterization workflows generate downstream derivative formation such as inhibitor-substrate binding hypotheses, structure-guided analog design inputs, and assay-compatible reference compounds for iterative medicinal chemistry.
3. Peptidomimetic Probe Design
H-Gly-AMC is suitable for peptidomimetic construction in which coumarin-tagged amino acid amides act as modular probes for mapping substrate specificity. The minimal glycine residue provides a controlled peptide-like element, while the AMC chromophore can be retained to maintain optical detectability during chemical biology experiments. The amide linkage supports rational substitution at the coumarin nitrogen or modification of the acyl portion to tune sterics and electronics, enabling generation of substrate panels for specificity profiling. H-Gly-AMC therefore functions as a scaffold for developing structure-defined fluorescent probes and for supporting synthetic methodology studies in amino acid derivatization and tag incorporation.
4. Analytical Standards And Calibration
H-Gly-AMC is utilized in analytical research for fluorescence-based quantification, method validation, and calibration of coumarin-tagged assay systems. The stable aromatic coumarin core and defined amide connectivity enable reproducible signal behavior under assay-relevant detection conditions. The compound's amino-functionalized coumarin ring supports consistent optical response, making it suitable for preparing reference solutions, internal standards, and comparative controls in substrate cleavage experiments. H-Gly-AMC can also serve as a starting material for constructing related AMC standards used in high-throughput screening readouts and in downstream quality control of fluorescent substrate batches.
5. Chemical Synthesis Intermediate
H-Gly-AMC can be employed as a chiral-neutral amino acid derivative intermediate for building coumarin-tagged substrate analogs and related fluorescent amide reagents. The molecule contains a peptide-like amide carbonyl that can be leveraged for further acylation, derivatization, or protection-group-compatible transformations when designing new cleavage-site motifs. The AMC moiety provides a functional handle for substitution chemistry at the coumarin amino group, enabling synthesis of families of tagged amino acid esters or amides with altered electronic properties. H-Gly-AMC thus supports fine chemical synthesis and specialty chemical production routes that require reproducible fluorescent labeling motifs for peptide chemistry and enzyme-assay reagent manufacture.
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