4jh2 is a 2 chain structure with sequence from Bacillus cereus ATCC 10987. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
FOSB_BACC1 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 (By similarity).