It is composed of three amino acids: glycine (Gly), tyrosine (Tyr), and arginine (Arg).
CAT No: HB00089
CAS No:70195-20-9
Synonyms/Alias:Gly-gly-tyr-arg;70195-20-9;Papain Inhibitor;Glycyl-glycyl-tyrosyl-arginine;H-Gly-Gly-Tyr-Arg-OH;(2S)-2-[[(2S)-2-[[2-[(2-aminoacetyl)amino]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid;N2-(N-(N-Glycylglycyl)-L-tyrosyl)-L-arginine;L-Arginine, N2-(N-(N-glycylglycyl)-L-tyrosyl)-;GGYR;Glycylglycyl-L-tyrosyl-L-arginine;MFCD00076760;DTXSID60990433;HY-P1315;AKOS030622944;BS-17484;DA-53984;PD133755;CS-0029363;D81927;(2S)-2-[(2S)-2-[2-(2-AMINOACETAMIDO)ACETAMIDO]-3-(4-HYDROXYPHENYL)PROPANAMIDO]-5-CARBAMIMIDAMIDOPENTANOIC ACID;(S)-2-((S)-2-(2-(2-aminoacetamido)acetamido)-3-(4-hydroxyphenyl)propanamido)-5-guanidinopentanoic acid;N~2~-[2-({2-[(2-Amino-1-hydroxyethylidene)amino]-1-hydroxyethylidene}amino)-1-hydroxy-3-(4-hydroxyphenyl)propylidene]arginine;
Gly-Gly-Tyr-Arg is a synthetic tetrapeptide composed of the amino acids glycine, tyrosine, and arginine arranged in a specific sequence. As a short-chain peptide, it is of considerable interest in biochemical research due to its defined structure and the functional roles of its constituent residues. Peptides of this size often serve as model substrates or ligands in enzymology, receptor biology, and structure-activity relationship studies. The presence of both hydrophilic and aromatic side chains within the sequence endows it with unique biochemical properties, making it a versatile tool for probing peptide interactions, enzymatic specificity, and cellular signaling pathways.
Enzyme substrate characterization: In enzymology, Gly-Gly-Tyr-Arg is frequently utilized as a model substrate to investigate the specificity and catalytic mechanisms of proteases and peptidases. Its defined sequence allows researchers to dissect the substrate preferences of enzymes, such as serine proteases or metalloproteases, which recognize and cleave peptide bonds at particular sites. By monitoring the cleavage of this tetrapeptide, investigators can gain insights into enzyme kinetics, active site architecture, and the influence of sequence context on proteolytic activity.
Peptide-receptor interaction studies: The sequence of Gly-Gly-Tyr-Arg offers a valuable framework for exploring peptide-receptor binding dynamics. Short peptides containing tyrosine and arginine residues are often employed in binding assays to delineate the molecular determinants of receptor recognition and activation. Through techniques such as surface plasmon resonance or fluorescence-based assays, this peptide can be used to map binding affinities, assess competitive inhibition, and elucidate the structural requirements for receptor engagement in cellular or in vitro systems.
Signal transduction research: Due to the presence of tyrosine and arginine, Gly-Gly-Tyr-Arg is relevant in the study of cellular signaling pathways, particularly those involving phosphorylation events or arginine-mediated interactions. Tyrosine-containing peptides serve as substrates in kinase assays, enabling the identification and quantification of phosphorylation events that modulate downstream signaling cascades. Researchers can employ this tetrapeptide to investigate kinase specificity, substrate recognition motifs, and the biochemical consequences of post-translational modifications within signaling networks.
Peptide synthesis and analytical method development: The well-defined structure of Gly-Gly-Tyr-Arg makes it an excellent model compound for optimizing solid-phase peptide synthesis protocols and validating analytical techniques such as high-performance liquid chromatography (HPLC) or mass spectrometry. Its use in method development allows for the assessment of peptide purity, sequence confirmation, and the detection of synthetic byproducts, thereby supporting quality control and troubleshooting in peptide manufacturing and research laboratories.
Structure-activity relationship (SAR) analysis: Researchers often incorporate Gly-Gly-Tyr-Arg into SAR studies to examine how sequence variations influence biological activity, binding affinity, or enzymatic processing. By systematically modifying individual amino acids within the tetrapeptide, investigators can elucidate the contributions of specific residues to function, stability, and interaction profiles. These insights are critical for the rational design of bioactive peptides, inhibitors, or molecular probes tailored for specific biochemical applications.
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