FEATURES

FAMILY

DESCRIPTION

Also known as URM1_DROPS, Urm1. Acts as a sulfur carrier required for 2-thiolation of mcm(5)S(2)U at tRNA wobble positions of cytosolic tRNA(Lys), tRNA(Glu) and tRNA(Gln). Serves as sulfur donor in tRNA 2-thiolation reaction by being thiocarboxylated (-COSH) at its C-terminus by MOCS3. The sulfur is then transferred to tRNA to form 2-thiolation of mcm(5)S(2)U. Also acts as a ubiquitin-like protein (UBL) that is covalently conjugated via an isopeptide bond to lysine residues of target proteins such as Jafrac1, Ciao1, Eip71CD and GILT1. The thiocarboxylated form serves as substrate for conjugation and oxidative stress specifically induces the formation of UBL-protein conjugates. Interacts with cer.

EXTERNAL LINKS

Urm1

Ubiquitin-related modifier 1 homolog

Urm1

Molecular Synopsis