2c8o

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lysozyme (1sec) and UV lasr excited fluorescencelysozyme (1sec) and UV lasr excited fluorescence

Structural highlights

2c8o is a 1 chain structure with sequence from Gallus gallus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Activity:Lysozyme, with EC number 3.2.1.17
Resources:FirstGlance, OCA, RCSB, PDBsum

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Structural proteomics has promoted the rapid development of automated protein structure determination using X-ray crystallography. Robotics are now routinely used along the pipeline from genes to protein structures. However, a bottleneck still remains. At synchrotron beamlines, the success rate of automated sample alignment along the X-ray beam is limited by difficulties in visualization of protein crystals, especially when they are small and embedded in mother liquor. Despite considerable improvement in optical microscopes, the use of visible light transmitted or reflected by the sample may result in poor or misleading contrast. Here, the endogenous fluorescence from aromatic amino acids has been used to identify even tiny or weakly fluorescent crystals with a high success rate. The use of a compact laser at 266 nm in combination with non-fluorescent sample holders provides an efficient solution to collect high-contrast fluorescence images in a few milliseconds and using standard camera optics. The best image quality was obtained with direct illumination through a viewing system coaxial with the UV beam. Crystallographic data suggest that the employed UV exposures do not generate detectable structural damage.

UV laser-excited fluorescence as a tool for the visualization of protein crystals mounted in loops.,Vernede X, Lavault B, Ohana J, Nurizzo D, Joly J, Jacquamet L, Felisaz F, Cipriani F, Bourgeois D Acta Crystallogr D Biol Crystallogr. 2006 Mar;62(Pt 3):253-61. Epub 2006, Feb 22. PMID:16510972[1]

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

See Also

References

  1. Vernede X, Lavault B, Ohana J, Nurizzo D, Joly J, Jacquamet L, Felisaz F, Cipriani F, Bourgeois D. UV laser-excited fluorescence as a tool for the visualization of protein crystals mounted in loops. Acta Crystallogr D Biol Crystallogr. 2006 Mar;62(Pt 3):253-61. Epub 2006, Feb 22. PMID:16510972 doi:http://dx.doi.org/10.1107/S0907444905041429

2c8o, resolution 1.50Å

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