Protein
Ferredoxin:CoB-CoM heterodisulfide reductase subunit B
Organism
Methanosarcina acetivorans (strain ATCC 35395 / DSM 2834 / JCM 12185 / C2A)
Function
Part of a complex that catalyzes the reversible reduction of CoM-S-S-CoB to the thiol-coenzymes H-S-CoM (coenzyme M) and H-S-CoB (coenzyme B). Probably involved in methylotrophic methanogenesis but not in aceticlastic methanogenesis.
Similarity
Belongs to the HdrB family.
Sequence
MKAIESIPDRKLLLFKSCMVGQEYPGIETATSYVFDRLGVDYCINDEQSCCTGIGHYTDVFEGLTTAAIAARNFAVARKCGYPNITCLCSTCYAINKDACELLNTNDGVREKVNSIFREKGFDDLVYEKDSMNPRTNIYHAVEVLLSKVEKIREEIKFDFPGVKAASHHACHYYKVKYLDVIGNPENPQLIDTIAEACGASPVRWYEDRTLTCGMGFSQLHLNKSTSLQVTKTKLDSLQRAGVELMIHMCPNCHIQYDRYQPVIEKEFGVEYDMVHMNIAQFVALSMGADPYKVCGFQTHSVPLEGFLEKTGII