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EC 2.4.2.55 Details
EC number
2.4.2.55
Accepted name
nicotinate D-ribonucleotide:phenol phospho-D-ribosyltransferase
Reaction
nicotinate D-ribonucleotide + phenol = nicotinate + phenyl 5-phospho-α-D-ribofuranoside
Other name(s)
ArsAB
Systematic name
nicotinate D-ribonucleotide:phenol phospho-D-ribosyltransferase
Comment
The enzyme is involved in the biosynthesis of phenolic cobamides in the Gram-positive bacterium Sporomusa ovata. It can also transfer the phospho-D-ribosyl group to 4-methylphenol and 5,6-dimethylbenzimidazole. The related EC 2.4.2.21, nicotinate-nucleotide dimethylbenzimidazole phosphoribosyltransferase, also transfers the phospho-D-ribosyl group from nicotinate D-ribonucleotide to 5,6-dimethylbenzimidazole, but shows no activity with 4-methylphenol or phenol.
History
created 2013
EC Tree
2.4.2.13 created 1961, deleted 1965