4ir0 is a 2 chain structure with sequence from Bacillus anthracis str. Ames. This structure supersedes the now removed PDB entry 3uh9. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
FOSB2_BACAN Metallothiol transferase which confers resistance to fosfomycin by catalyzing the addition of a thiol cofactor to fosfomycin. L-cysteine is probably the physiological thiol donor.[HAMAP-Rule:MF_01512]