Remarkable Remote Chiral Recognition in a Reaction Mediated by a Catalytic Antibody
作者:Lawrence J. D'Souza、Benoît Gigant、Marcel Knossow、Bernard S. Green
DOI:10.1021/ja0170504
日期:2002.3.1
structures of catalyticantibody D2.3 Fab with the two enantiomers, 7D and 7L, which represent transition state analogues for the hydrolysis of the corresponding esters, 6D and 6L, were determined to better understand remarkable reactivity differences: the L-ester displayed significantly tighter binding (K(M)) and increased catalytic activity (k(cat)) with D2.3, even though the chiral center is 7 bonds distant
The present invention provides PEGylated aspartyl-tRNA synthetase (DRS) polypeptides, compositions comprising the same, and methods of using such polypeptides and compositions for treating or diagnosing a variety of conditions. The PEGylated DRS polypeptides of the invention have improved controlled release properties, stability, half-life, and other pharmacokinetic properties compared to non-PEGylated DRS polypeptides.