FEATURES

FAMILY

SOS response-associated peptidase family

DESCRIPTION

Also known as YEDK_ECOLI, yedK, yedG. Sensor of abasic sites in single-stranded DNA (ssDNA) required to preserve genome integrity by promoting error-free repair of abasic sites (PubMed:30554877). Recognizes and binds abasic sites in ssDNA at replication forks and chemically modifies the lesion by forming a covalent cross-link with DNA: forms a stable thiazolidine linkage between a ring-opened abasic site and the alpha-amino and sulfhydryl substituents of its N-terminal catalytic cysteine residue (PubMed:30554877, PubMed:31235915, PubMed:31504793). May act as a protease: mediates autocatalytic processing of its N-terminal methionine in order to expose the catalytic cysteine (By similarity).

EXTERNAL LINKS

yedK

Abasic site processing protein YedK

yedK

Molecular Synopsis