1.3.98.6: AdoMet-dependent heme synthase
This is an abbreviated version!
For detailed information about AdoMet-dependent heme synthase, go to the full flat file.
Reaction
+ 2 S-adenosyl-L-methionine = + 2 CO2 + 2 5'-deoxyadenosine + 2 L-methionine
Synonyms
ahbD, heme b synthase, Mbar_A1458, SAM-dependent heme synthase
ECTree
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Cofactor
Cofactor on EC 1.3.98.6 - AdoMet-dependent heme synthase
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isolated protein forms a brown solution with a broad peak between 340 to 400 nm in the UV-visible spectrum
4Fe-4S-center
presence of 2 [4Fe-4S]-clusters. The second cluster is not required for substrate binding and formation of the substrate radical but is involved in a late step of AhbD catalysis, most likely in electron transfer from the reaction intermediate to a final electron acceptor. The central iron ion of the porphyrin substrate also participates in the electron transfer from the reaction intermediate to the auxiliary [4Fe-4S] cluster