Protein
Coenzyme F420-dependent sulfite reductase
Organism
Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)
Function
Catalyzes the reduction of sulfite to sulfide using reduced F420 as the electron source. Involved in sulfite detoxification and assimilation. Cannot use NADH or NADPH.
Similarity
Belongs to the nitrite and sulfite reductase 4Fe-4S domain family.
Sequence
MYEWKLNEIVDSGVCARCGTCTIVCPNGILTFDERPKLIDECLRKGHGMCFEVCPRVSSAKYQIKIREKFYEKYYYAKSDIEGQDGGVVTAFLKYLLENGKIDGAIVVGDECWKPVSLVVQNAEDLLKTAKSKYAISTLDALRKAGEMGLEKVAVVGLPCQINGLRKLQYFPYHAKHDLELGRNGKPVKLPKIEYLIGLFCTEKFRYDNMKEVLSKHGIDIEKVEKFDIKKGKLLVYVNGEKKEFDLKEFEICSGCKMCRDFDAEMADVSVGCVGSPDGYSTIIIRTEKGEEIKNAVELKEGVNLEEIEKLRQLKLKRFKKEVERRRENNEYVSFYWTADYGGIGKRADGTYFIRVRAKPGGWYKPEEIKEILDIAEEYNAKIKVTDRAGYELHGISGFDVEDIVLRLREKGLLTGSEGPLVRATLACPGGGNCSSGLVDTTELARIIEDNFKERPAPYKFKIAISGCPNGCVRPQVHDIGIAGVKYPKVNEEKCNGCGRCAEVCKVEAIDIRGETSYTNYNVCVGCGKCIKNCPNEAREVKEEGYLVYVGGKTGREVVEGVKMKLMSVDEIINFIDKVLVVYGKYAEKPQRERLAAVMKRVGYGKFLEEVKELMKKEIC