phosphoribosylformylglycinamidine synthase, clade II
This model represents a single-molecule form of phosphoribosylformylglycinamidine synthase, also called FGAM synthase, an enzyme of purine de novo biosynthesis. This model represents a second clade of these enzymes found in Clostridia, Bifidobacteria and Streptococcus species. This enzyme performs the fourth step in IMP biosynthesis (the precursor of all purines) from PRPP. [Purines, pyrimidines, nucleosides, and nucleotides, Purine ribonucleotide biosynthesis]
Jiyao W et al.(2023). "The conserved domain database in 2023.",