Mycobacterium tuberculosis Chorismate synthase before exposure to 266 nm UV laserMycobacterium tuberculosis Chorismate synthase before exposure to 266 nm UV laser

Structural highlights

4bai is a 1 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 2.3Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

AROC_MYCTU

Publication Abstract from PubMed

Selenomethionine labeling is the most common technique used in protein crystallography to derivatize recombinant proteins for experimental phasing using anomalous scattering at tunable synchrotron beamlines. Recently, it has been shown that UV radiation depletes electron density of selenium atoms of selenomethionine residues and that UV radiation- damage induced phasing (equivalent to single isomorphous replacement) protocol can be applied to calculate experimental phases. Here we present the straightforward integration of a UV source with an in-house diffractometer. We show how this setup can extend the capabilities of a sealed tube X-ray generator and be used for experimental phasing of selenium-labeled proteins.

In-house UV radiation damage induced phasing of selenomethionine-labeled protein structures.,Pereira PJ, Royant A, Panjikar S, de Sanctis D J Struct Biol. 2012 Nov 20. pii: S1047-8477(12)00315-2. doi:, 10.1016/j.jsb.2012.11.003. PMID:23178456[1]

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

See Also

References

  1. Pereira PJ, Royant A, Panjikar S, de Sanctis D. In-house UV radiation damage induced phasing of selenomethionine-labeled protein structures. J Struct Biol. 2012 Nov 20. pii: S1047-8477(12)00315-2. doi:, 10.1016/j.jsb.2012.11.003. PMID:23178456 doi:http://dx.doi.org/10.1016/j.jsb.2012.11.003

4bai, resolution 2.30Å

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