Protein
Sulfite reductase [NADPH] hemoprotein beta-component 2
Organism
Pectobacterium carotovorum subsp. carotovorum (strain PC1)
Function
Component of the sulfite reductase complex that catalyzes the 6-electron reduction of sulfite to sulfide. This is one of several activities required for the biosynthesis of L-cysteine from sulfate.
Similarity
Belongs to the nitrite and sulfite reductase 4Fe-4S domain family.
Sequence
MSEKYVFSEKHPGPLVVEGKLTDAERMKTESNFLRGTIAEDLNDGLTGGFKGDNFLLIRFHGMYQQDDRDIRAERAEQKLEPRHAMLLRCRLPGGVMTPEQWLRIDKFAGESTIYGSIRITNRQTFQYHGILKSNVKPVHQMLNSIGLDALATANDMNRNVLCTSNPIESELHQQAYEWAKKISEHLLPRTRAYAEIWMDQEKVATTDEEPILGSTYLPRKFKTTVVVPPQNDVDLHANDLNFIAIADNGRLVGFNVLVGGGLSIAHGDKATYPRTASELGYISIEHTLAIAEAVVTTQRDWGNRTNRKNAKTKYTLERVGVDNFKQEVEARAGVKFEAVRPYEFTGRGDRIGWVKGIDNKWHLTLFIENGRILDYPGRPLKTGLAEIAKIHKGDFRLTANQNLIIAGVPARSKAKIDALAREHGLIDDSVSEQRKNSMACVSFPTCPLAMAEAERFLPEFVTKVEDIMQQHGVGDEHIVLRVTGCPNGCGRAMLAEIGLVGKAVGRYNLHLGGNREGTRIPRMYRENINETEILAEIDRLIGLWAQDRQPNEGFGDFTIRTNIIRPVLDPARDFYD