| Structural highlights
Function
[C16MO_PSEPU] Involved in the degradation of (-)-camphor. Catalyzes the lactonization of the 3,6-diketocamphane via the Baeyer-Villiger oxidation to produce the unstable lactone (-)-5-oxo-1,2-campholide that presumably undergoes spontaneous hydrolysis to form 2-oxo-delta(3)-4,5,5-trimethylcyclopentenylacetic acid. It acts only on bicyclic ketones.[1] [2]
Publication Abstract from PubMed
The three-dimensional structures of the native enzyme and the FMN complex of the overexpressed form of the oxygenating component of the type II Baeyer-Villiger 3,6-diketocamphane monooxygenase have been determined to 1.9 A resolution. The structure of this dimeric FMN-dependent enzyme, which is encoded on the large CAM plasmid of Pseudomonas putida, has been solved by a combination of multiple anomalous dispersion from a bromine crystal soak and molecular replacement using a bacterial luciferase model. The orientation of the isoalloxazine ring of the FMN cofactor in the active site of this TIM-barrel fold enzyme differs significantly from that previously observed in enzymes of the bacterial luciferase-like superfamily. The Ala77 residue is in a cis conformation and forms a beta-bulge at the C-terminus of beta-strand 3, which is a feature observed in many proteins of this superfamily.
The oxygenating constituent of 3,6-diketocamphane monooxygenase from the CAM plasmid of Pseudomonas putida: the first crystal structure of a type II Baeyer-Villiger monooxygenase.,Isupov MN, Schroder E, Gibson RP, Beecher J, Donadio G, Saneei V, Dcunha SA, McGhie EJ, Sayer C, Davenport CF, Lau PC, Hasegawa Y, Iwaki H, Kadow M, Balke K, Bornscheuer UT, Bourenkov G, Littlechild JA Acta Crystallogr D Biol Crystallogr. 2015 Nov 1;71(Pt 11):2344-53. doi:, 10.1107/S1399004715017939. Epub 2015 Oct 31. PMID:26527149[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Kadow M, Loschinski K, Sass S, Schmidt M, Bornscheuer UT. Completing the series of BVMOs involved in camphor metabolism of Pseudomonas putida NCIMB 10007 by identification of the two missing genes, their functional expression in E. coli, and biochemical characterization. Appl Microbiol Biotechnol. 2012 Oct;96(2):419-29. PMID:22286514 doi:http://dx.doi.org/10.1007/s00253-011-3859-1
- ↑ Jones KH, Smith RT, Trudgill PW. Diketocamphane enantiomer-specific 'Baeyer-Villiger' monooxygenases from camphor-grown Pseudomonas putida ATCC 17453. J Gen Microbiol. 1993 Apr;139(4):797-805. PMID:8515237
- ↑ Isupov MN, Schroder E, Gibson RP, Beecher J, Donadio G, Saneei V, Dcunha SA, McGhie EJ, Sayer C, Davenport CF, Lau PC, Hasegawa Y, Iwaki H, Kadow M, Balke K, Bornscheuer UT, Bourenkov G, Littlechild JA. The oxygenating constituent of 3,6-diketocamphane monooxygenase from the CAM plasmid of Pseudomonas putida: the first crystal structure of a type II Baeyer-Villiger monooxygenase. Acta Crystallogr D Biol Crystallogr. 2015 Nov 1;71(Pt 11):2344-53. doi:, 10.1107/S1399004715017939. Epub 2015 Oct 31. PMID:26527149 doi:http://dx.doi.org/10.1107/S1399004715017939
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