8a1k

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Crystal structure of the transpeptidase LdtMt2 from Mycobacterium tuberculosis in complex with ebsulfur analogue 15Crystal structure of the transpeptidase LdtMt2 from Mycobacterium tuberculosis in complex with ebsulfur analogue 15

Structural highlights

8a1k is a 2 chain structure with sequence from Mycobacterium tuberculosis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.75Å
Ligands:, , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LDT2_MYCTO Generates 3->3 cross-links in peptidoglycan, catalyzing the cleavage of the mDap(3)-D-Ala(4) bond of a tetrapeptide donor stem and the formation of a bond between the carbonyl of mDap(3) of the donor stem and the side chain of mDap(3) of the acceptor stem. Is specific for donor substrates containing a stem tetrapeptide since it cannot use pentapeptide stems. Is essential for virulence in a mouse model of acute infection.[1]

References

  1. Gupta R, Lavollay M, Mainardi JL, Arthur M, Bishai WR, Lamichhane G. The Mycobacterium tuberculosis protein LdtMt2 is a nonclassical transpeptidase required for virulence and resistance to amoxicillin. Nat Med. 2010 Apr;16(4):466-9. doi: 10.1038/nm.2120. Epub 2010 Mar 21. PMID:20305661 doi:http://dx.doi.org/10.1038/nm.2120

8a1k, resolution 1.75Å

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OCA