Reaction Scheme: 7-carboxy-7-deazaguanine synthase (Cx3CxxC type), Radical SAM superfamily Reaction 221

Scheme name: 7-carboxy-7-deazaguanine synthase (Cx3CxxC type), Radical SAM superfamily
Reaction: 7-carboxy-7-deazaguanine synthase
Description:This protein is known to be Mg(II) dependent, as well as having the canonical [4Fe-4s]-AdoMet binding motif where the SAM binds to the "free" apical iron to activate SAM into the 5'-dA radical, which initiates the reaction. The mechanism is thought to be similar to the non-canonical QueE, but not fully elucidated to date.
Curator notes:

Database References

DB Name DB Identifier Evidence Code Evidence Code Reference
SFLD EFD 280215 IDA 2885

Reaction

7-carboxy-7-deazaguanine synthase

+ +
5,6,7,8-tetrahydropterin-6-carboxylate
61032
hydron
15378
7-carboxylato-7-deazaguanine
61036
ammonium
28938

EC: 4.3.99.3 | IntEnz: 4.3.99.3 | Kegg: 4.3.99.3 | BioCyc: 4.3.99.3 | BRENDA: 4.3.99.3