>tr|E1IQK4|E1IQK4_ECOLX Phosphoadenosine 5'-phosphosulfate reductase OS=Escherichia coli MS 145-7 GN=cysH MSKLDLNALNELPKVDRILALAETNAELEKLDAEGRVAWALDNLPGEYVLSSSFGIQAAV SLHLVNQIHPDIPVILTDTGYLFPETYRFIDELTDKLKLNLKVYRATESAAWQEARYGKL WEQGVEGIEKYNDINKVEPMNRALKELNAQTWFAGLRREQSGSRANLPVLAIQRGVFKVL PIIDWDNRTIYQYLQKHGLKYHPLWDEGYLSVGDTHTTRKWEPGMSEEETRFFGLKRECG LHEG