sp|B1IU77|CYSJ_ECOLC Sulfite reductase [NADPH] flavoprotein alpha-component OS=Escherichia coli (strain ATCC 8739 / DSM 1576 / NBRC 3972 / NCIMB 8545 / WDCM 00012 / Crooks) OX=481805 GN=cysJ PE=3 SV=1