Bisubstrate UDP–peptide conjugates as human O-GlcNAc transferase inhibitors
作者:Vladimir S. Borodkin、Marianne Schimpl、Mehmet Gundogdu、Karim Rafie、Helge C. Dorfmueller、David A. Robinson、Daan M. F. van Aalten
DOI:10.1042/bj20131272
日期:2014.2.1
Inhibitors of OGT (O-GlcNActransferase) are valuable tools to study the cell biology of protein O-GlcNAcylation. We report OGT bisubstrate-linked inhibitors (goblins) in which the acceptor serine in the peptide VTPVSTA is covalently linked to UDP, eliminating the GlcNAc pyranoside ring. Goblin1 co-crystallizes with OGT, revealing an ordered C₃ linker and retained substrate-binding modes, and binds