Protein
Flavin prenyltransferase UbiX
Organism
Escherichia coli (strain K12)
Function
Flavin prenyltransferase that catalyzes the synthesis of the prenylated FMN cofactor (prenyl-FMN) for 4-hydroxy-3-polyprenylbenzoic acid decarboxylase UbiD. The prenyltransferase is metal-independent and links a dimethylallyl moiety from dimethylallyl monophosphate (DMAP) to the flavin N5 and C6 atoms of FMN (By similarity). Acts in concert with UbiD to perform the decarboxylation of 4-hydroxy-3-octaprenyl-benzoate, a step in the biosynthesis of coenzyme Q (PubMed:16923914, PubMed:17889824).
Similarity
Belongs to the UbiX/PAD1 family.
Sequence
MKRLIVGISGASGAIYGVRLLQVLRDVTDIETHLVMSQAARQTLSLETDFSLREVQALADVTHDARDIAASISSGSFQTLGMVILPCSIKTLSGIVHSYTDGLLTRAADVVLKERRPLVLCVRETPLHLGHLRLMTQAAEIGAVIMPPVPAFYHRPQSLDDVINQTVNRVLDQFAITLPEDLFARWQGA