H-Tyr-Lys-OH is a dipeptide that can serve as a biomarker for AJH-1. H-Tyr-Lys-OH has a good binding affinity with angiotensin-converting enzyme (ACE)[1]. Dipeptides are commonly used to study enzyme mechanisms, protein synthesis and degradation processes, and signaling pathways[2]. H-Tyr-Lys-OH consists of two amino acid residues, tyrosine (Tyr) and lysine (Lys). Tyrosine contains a phenol group, which makes it important in protein interactions and enzyme catalysis[3]. The side chain of lysine contains an amino group that can form hydrogen bonds with other molecules, participating in various biochemical reactions[4].
References:
[1] Mikolasch A, et al. Laccase-catalyzed cross-linking of amino acids and peptides with dihydroxylated aromatic compounds[J]. Amino acids, 2010, 39: 671-683.
[2] Li M, Wei Y, Feng Z, et al. Dipeptides VL increase protein accumulation in C2C12 cells by activating the Akt-mTOR pathway and inhibiting the NF-κB pathway[J]. Food Bioscience, 2022, 45: 101493.
[3] Radi R. Protein tyrosine nitration: biochemical mechanisms and structural basis of functional effects[J]. Accounts of chemical research, 2013, 46(2): 550-559.
[4] Damodaran S. Amino acids, peptides and proteins[J]. Fennema’s food chemistry, 2008, 4: 425-439.
H-Tyr-Lys-OH是一种二肽，可作为 AJH-1 的生物标志物。H-Tyr-Lys-OH 与血管紧张素转换酶（ACE）有较好的结合亲和力[1]。二肽常用于研究酶的作用机制、蛋白质合成和降解过程以及信号传导途径[2]。H-Tyr-Lys-OH由酪氨酸（Tyr）和赖氨酸（Lys）两个氨基酸残基组成。酪氨酸含有一个酚基，这使得它在蛋白质相互作用和酶催化过程中具有重要作用[3]。赖氨酸的侧链含有一个氨基，可以与其他分子形成氢键，参与各种生物化学反应[4]。