Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Amino acid selectivity of tyrosyl-tRNA synthetase. A, l-Tyr captured in the TyrRS amino acid–binding pocket; amino group, carbonyl oxygen, and the side chain hydroxyl groups help in substrate selectivity (PDB entry 1J1U). B, d-Tyr modeled in the TyrRS amino acid–binding pocket. C, overlap of d- and l-Tyr, clearly depicting the mode of amino acid binding and also explaining the weak enantioselectivity of TyrRS.
