Crystal Structure of OvoBCrystal Structure of OvoB

Structural highlights

5z0q is a 12 chain structure with sequence from Erwinia tasmaniensis Et1/99. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.77Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

B2VJB8_ERWT9

Publication Abstract from PubMed

Ovothiols are thiolhistidine derivatives. The first step of ovothiol biosynthesis is OvoA-catalyzed oxidative coupling between histidine and cysteine. In this report, the remaining steps of ovothiol A biosynthesis were reconstituted in vitro. ETA_14770 (OvoB) was reported as a PLP-dependent sulfoxide lyase, responsible for mercaptohistidine production. OvoA was found to be a bifunctional enzyme, which mediates both oxidative C-S bond formation and methylation of mercaptohistidine to afford ovothiol A. Besides reconstituting the whole biosynthetic pathway, two unique features proposed in the literature were also examined: a potential cysteine-recycling mechanism of the C-S lyase (OvoB) and the selectivity of the pi- N methyltransferase.

In Vitro Reconstitution of the Remaining Steps in Ovothiol A Biosynthesis: C-S Lyase and Methyltransferase Reactions.,Naowarojna N, Huang P, Cai Y, Song H, Wu L, Cheng R, Li Y, Wang S, Lyu H, Zhang L, Zhou J, Liu P Org Lett. 2018 Sep 7;20(17):5427-5430. doi: 10.1021/acs.orglett.8b02332. Epub, 2018 Aug 24. PMID:30141637[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Naowarojna N, Huang P, Cai Y, Song H, Wu L, Cheng R, Li Y, Wang S, Lyu H, Zhang L, Zhou J, Liu P. In Vitro Reconstitution of the Remaining Steps in Ovothiol A Biosynthesis: C-S Lyase and Methyltransferase Reactions. Org Lett. 2018 Sep 7;20(17):5427-5430. doi: 10.1021/acs.orglett.8b02332. Epub, 2018 Aug 24. PMID:30141637 doi:http://dx.doi.org/10.1021/acs.orglett.8b02332

5z0q, resolution 2.77Å

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