2c8o: Difference between revisions

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[[Image:2c8o.gif|left|200px]]


{{Structure
==lysozyme (1sec) and UV lasr excited fluorescence==
|PDB= 2c8o |SIZE=350|CAPTION= <scene name='initialview01'>2c8o</scene>, resolution 1.50&Aring;
<StructureSection load='2c8o' size='340' side='right'caption='[[2c8o]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND=  
<table><tr><td colspan='2'>[[2c8o]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C8O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2C8O FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</td></tr>
|GENE=  
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2c8o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c8o OCA], [https://pdbe.org/2c8o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2c8o RCSB], [https://www.ebi.ac.uk/pdbsum/2c8o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2c8o ProSAT]</span></td></tr>
}}
</table>
 
== Function ==
'''LYSOZYME (1SEC) AND UV LASR EXCITED FLUORESCENCE'''
[https://www.uniprot.org/uniprot/LYSC_CHICK LYSC_CHICK] Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.<ref>PMID:22044478</ref>
 
== Evolutionary Conservation ==
 
[[Image:Consurf_key_small.gif|200px|right]]
==Overview==
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c8/2c8o_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2c8o ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== 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.
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.


==About this Structure==
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<ref>PMID:16510972</ref>
2C8O is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C8O OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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:[http://www.ncbi.nlm.nih.gov/pubmed/16510972 16510972]
</div>
[[Category: Lysozyme]]
<div class="pdbe-citations 2c8o" style="background-color:#fffaf0;"></div>
[[Category: Single protein]]
[[Category: Bourgeois, D.]]
[[Category: Cipriani, F.]]
[[Category: Felisaz, F.]]
[[Category: Jacquamet, L.]]
[[Category: Joly, J.]]
[[Category: Lavault, B.]]
[[Category: Nurizzo, D.]]
[[Category: Ohana, J.]]
[[Category: Vernede, X.]]
[[Category: allergen]]
[[Category: antimicrobial]]
[[Category: bacteriolytic enzyme]]
[[Category: hydrolase]]
[[Category: laser]]
[[Category: uv]]
[[Category: visualisation]]


''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:12:19 2008''
==See Also==
*[[Lysozyme 3D structures|Lysozyme 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Gallus gallus]]
[[Category: Large Structures]]
[[Category: Bourgeois D]]
[[Category: Cipriani F]]
[[Category: Felisaz F]]
[[Category: Jacquamet L]]
[[Category: Joly J]]
[[Category: Lavault B]]
[[Category: Nurizzo D]]
[[Category: Ohana J]]
[[Category: Vernede X]]

Latest revision as of 10:48, 23 October 2024

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.
Method:X-ray diffraction, Resolution 1.5Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LYSC_CHICK Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.[1]

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[2]

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

See Also

References

  1. Maehashi K, Matano M, Irisawa T, Uchino M, Kashiwagi Y, Watanabe T. Molecular characterization of goose- and chicken-type lysozymes in emu (Dromaius novaehollandiae): evidence for extremely low lysozyme levels in emu egg white. Gene. 2012 Jan 15;492(1):244-9. doi: 10.1016/j.gene.2011.10.021. Epub 2011 Oct, 25. PMID:22044478 doi:10.1016/j.gene.2011.10.021
  2. 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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OCA