FAD synthase RibL (IPR024902)

Short name: FAD_synth_RibL

Overlapping homologous superfamilies

Family relationships



FAD synthases convert flavin mononucleotide (FMN) to flavin adenine dinucleotide (FAD) by the addition of the AMP portion of ATP. RibL is, currently, the only identified archaeal FAD synthase [PMID: 20822113]. This protein is not related to the eukarytoic or bacterial enzymes and contains no known motifs for FMN or FAD binding, suggesting that it contains a novel flavin binding site. Unlike most other FAD synthases, RibL does not catalyse the reverse reaction to produce FMN and ATP from FAD.

GO terms

Biological Process

GO:0006747 FAD biosynthetic process
GO:0046444 FMN metabolic process

Molecular Function

GO:0003919 FMN adenylyltransferase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.