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MJ1025

Gene
MJ1025
Protein
L-cysteine desulfidase
Organism
Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)
Length
388 amino acids
Function
Catalyzes the cleavage of L-cysteine to form 2-aminoprop-2-enoate and sulfide. The former then spontaneously hydrolyzes to pyruvate and NH(3). May be responsible for the production of sulfide required for the biosynthesis of iron-sulfur centers in this archaea. Is very specific for L-cysteine, with no activity being detected with D-cysteine, L-homocysteine, 3-mercaptopropionate (cysteine without the amino group), cysteamine (cysteine without the carboxylate), or mercaptolactate (the hydroxyl analog of cysteine).
Similarity
Belongs to the L-cysteine desulfidase family.
Mass
42.645 kDa
Sequence
MVSIMNKNELITEILKNEVVKALGCTEVGLIGYTVAKAKPEDLYSIKEIKLILDKGTFKNAFSVGVPNTNKFGILPAVVGGLLGREENKLEVFKDIKYDEKLEEFIENKLKIEVIDSDVYCKVIIKANKVYEAETKGSHSGKSLSDDLKNAYKSLTLKDFIDYIEDIPEEVIKIIKETIETNKNLSTPEVPEDFISLDLKDEILNHMLKKTVSAVYNRMIGINKPAMAIAGSGNMGLTATLPIIAYDEIKGHDEEKLTKSITLSALTTIYSAYHSSYISAMCGCVNRGGIGAVSGLSYYIFGFDRIEESIKSFTANLPGIVCDGGKIGCALKIASGVFAIYLSLFSKVPYTNGIVGKDFKECIENIGKIGKAMKPVDDEIIEILKNKK