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EC 1.97.1.4 Details
EC number
1.97.1.4
Accepted name
[formate-C-acetyltransferase]-activating enzyme
Reaction
S-adenosyl-L-methionine + dihydroflavodoxin + [formate C-acetyltransferase]-glycine = 5′-deoxyadenosine + L-methionine + flavodoxin semiquinone + [formate C-acetyltransferase]-glycin-2-yl radical
Other name(s)
PFL activase, PFL-glycine:S-adenosyl-L-methionine H transferase (flavodoxin-oxidizing, S-adenosyl-L-methionine-cleaving), formate acetyltransferase activating enzyme, formate acetyltransferase-glycine dihydroflavodoxin:S-adenosyl-L-methionine oxidoreductase (S-adenosyl-L-methionine cleaving), pyruvate formate-lyase activating enzyme, pyruvate formate-lyase 1 activating enzyme
Systematic name
[formate C-acetyltransferase]-glycine dihydroflavodoxin:S-adenosyl-L-methionine oxidoreductase (S-adenosyl-L-methionine cleaving)
CAS registry number
206367-15-9
Comment
An iron-sulfur protein. A single glycine residue in EC 2.3.1.54, formate C-acetyltransferase, is oxidized to the corresponding radical by transfer of H from its CH2 to AdoMet with concomitant cleavage of the latter. The reaction requires Fe2+. The first stage is reduction of the AdoMet to give methionine and the 5′-deoxyadenosin-5′-yl radical, which then abstracts a hydrogen radical from the glycine residue.
History
created 1999, modified 2004
EC Tree
1.97.1.5 created 2000 deleted 2001
1.97.1.6 created 2000 deleted 2001
1.97.1.7 created 2000, deleted 2001