pfx:A7318_02725 K00957 sulfate adenylyltransferase subunit 2 [EC:2.7.7.4] | (GenBank) sulfate adenylyltransferase small subunit pfx:A7318_02720 K00955 bifunctional enzyme CysN/CysC [EC:2.7.7.4 2.7.1.25] | (GenBank) bifunctional sulfate adenylyltransferase subunit 1/adenylylsulfate kinase