IUBMB Enzyme Nomenclature


Accepted name: 8-demethylnovobiocic acid synthase

Reaction: ATP + 4-hydroxy-3-prenylbenzoate + 3-amino-4,7-dihydroxycoumarin = AMP + diphosphate + 8-demethylnovobiocic acid

For diagram of reaction click here.

Glossary: 8-demethylnovobiocic acid = N-(2,7-dihydroxy-4-oxochromen-3-yl)-4-hydroxy-3-(3-methylbut-2-en-1-yl)benzamide

Other name(s): novL (gene name); novobiocin ligase; novobiocic acid synthetase (misleading); 8-desmethyl-novobiocic acid synthetase; 8-demethylnovobiocic acid synthetase; 3-dimethylallyl-4-hydroxybenzoate:3-amino-4,7-dihydroxycoumarin ligase (AMP-forming)

Systematic name: 4-hydroxy-3-prenylbenzoate:3-amino-4,7-dihydroxycoumarin ligase (AMP-forming)

Comments: The enzyme is involved in the biosynthesis of the aminocoumarin antibiotic novobiocin.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:


1. Steffensky, M., Li, S.M. and Heide, L. Cloning, overexpression, and purification of novobiocic acid synthetase from Streptomyces spheroides NCIMB 11891. J. Biol. Chem. 275 (2000) 21754-21760. [PMID: 10801869]

2. Pi, N., Meyers, C.L., Pacholec, M., Walsh, C.T. and Leary, J.A. Mass spectrometric characterization of a three-enzyme tandem reaction for assembly and modification of the novobiocin skeleton. Proc. Natl. Acad. Sci. USA 101 (2004) 10036-10041. [PMID: 15218104]

3. Pacholec, M., Tao, J. and Walsh, C.T. CouO and NovO: C-methyltransferases for tailoring the aminocoumarin scaffold in coumermycin and novobiocin antibiotic biosynthesis. Biochemistry 44 (2005) 14969-14976. [PMID: 16274243]

[EC created 2013]

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