4bzq is a 2 chain structure with sequence from Mycobacterium tuberculosis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[CYSNC_MYCTU] ATP sulfurylase may be the GTPase, regulating ATP sulfurylase activity (By similarity).[HAMAP-Rule:MF_00062] APS kinase catalyzes the synthesis of activated sulfate (By similarity).[HAMAP-Rule:MF_00062]