>sp|Q8X7U3|CYSH_ECO57 Phosphoadenosine 5'-phosphosulfate reductase OS=Escherichia coli O157:H7 GN=cysH MSKLDLNALNELPKVDRILALAETNAQLEKLDAEGRVAWALDNLPGEYVLSSSFGIQAAV SLHLVNQIRPDIPVILTDTGYLFPETYRFIDELTDKLKLNLKVYRATESAAWQEARYGKL WEQGVEGIEKYNDINKVEPMNRALKELNAQTWFAGLRREQSGSRANLPVLAIQRGVFKVL PIIDWDNRTIYQYLQKNGLKYHPLWDEGYLSVGDTHTTRKWEPGMAEEETRFFGLKRECG LHEG