bioB

K01012 bioB; biotin synthase [EC:2.8.1.6]

Protein Function: biotin synthase [EC:2.8.1.6]

DBLinks
Proteins
protein id name function taxonomy source
Reactions
reaction id name note
KEGG:R01078 dethiobiotin:sulfur sulfurtransferase the reactant sulfur is not elemental sulfur, but it may be from the enzyme itself ([2Fe-2S] iron-sulfur centre)
BioCyc:2.8.1.6-RXN 2 S-ADENOSYLMETHIONINE + Sulfurated-Sulfur-Acceptors + DETHIOBIOTIN + 2 Reduced-2Fe-2S-Ferredoxins --> Unsulfurated-Sulfur-Acceptors + BIOTIN + 2 CH33ADO + 2 MET + 2 Oxidized-2Fe-2S-Ferredoxins The fourth and final step in the biosynthesis of biotin.
Rhea:RHEA:22061 (4R,5S)-dethiobiotin + (sulfur carrier)-SH + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine => (sulfur carrier)-H + biotin + 2 5'-deoxyadenosine + 2 L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin]
Rhea:RHEA:22062 (sulfur carrier)-H + biotin + 2 5'-deoxyadenosine + 2 L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] => (4R,5S)-dethiobiotin + (sulfur carrier)-SH + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine
Rhea:RHEA:22063 (4R,5S)-dethiobiotin + (sulfur carrier)-SH + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine <=> (sulfur carrier)-H + biotin + 2 5'-deoxyadenosine + 2 L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin]