2jic

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[[Image:2jic.png|left|200px]]
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==High resolution structure of xylanase-II from one micron beam experiment==
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<StructureSection load='2jic' size='340' side='right' caption='[[2jic]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
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== Structural highlights ==
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[[2jic]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Trichoderma_longibrachiatum Trichoderma longibrachiatum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JIC OCA]. <br>
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<b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span><br>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ji/2jic_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
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For the first time, protein microcrystallography has been performed with a focused synchrotron-radiation beam of 1 microm using a goniometer with a sub-micrometre sphere of confusion. The crystal structure of xylanase II has been determined with a flux density of about 3 x 10(10) photons s(-1) microm(-2) at the sample. Two sets of diffraction images collected from different sized crystals were shown to comprise data of good quality, which allowed a 1.5 A resolution xylanase II structure to be obtained. The main conclusion of this experiment is that a high-resolution diffraction pattern can be obtained from 20 microm(3) crystal volume, corresponding to about 2 x 10(8) unit cells. Despite the high irradiation dose in this case, it was possible to obtain an excellent high-resolution map and it could be concluded from the individual atomic B-factor patterns that there was no evidence of significant radiation damage. The photoelectron escape from a narrow diffraction channel is a possible reason for reduced radiation damage as indicated by Monte Carlo simulations. These results open many new opportunities in scanning protein microcrystallography and make random data collection from microcrystals a real possibility, therefore enabling structures to be solved from much smaller crystals than previously anticipated as long as the crystallites are well ordered.
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Protein crystallography with a micrometre-sized synchrotron-radiation beam.,Moukhametzianov R, Burghammer M, Edwards PC, Petitdemange S, Popov D, Fransen M, McMullan G, Schertler GF, Riekel C Acta Crystallogr D Biol Crystallogr. 2008 Feb;64(Pt 2):158-66. Epub 2008, Jan 16. PMID:18219115<ref>PMID:18219115</ref>
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The line below this paragraph, containing "STRUCTURE_2jic", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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-->
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{{STRUCTURE_2jic| PDB=2jic | SCENE= }}
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===High resolution structure of xylanase-II from one micron beam experiment===
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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== References ==
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<references/>
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<!--
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__TOC__
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The line below this paragraph, {{ABSTRACT_PUBMED_18219115}}, adds the Publication Abstract to the page
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</StructureSection>
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(as it appears on PubMed at http://www.pubmed.gov), where 18219115 is the PubMed ID number.
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-->
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{{ABSTRACT_PUBMED_18219115}}
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==About this Structure==
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[[2jic]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Trichoderma_longibrachiatum Trichoderma longibrachiatum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JIC OCA].
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==Reference==
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<ref group="xtra">PMID:018219115</ref><references group="xtra"/>
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[[Category: Endo-1,4-beta-xylanase]]
[[Category: Endo-1,4-beta-xylanase]]
[[Category: Trichoderma longibrachiatum]]
[[Category: Trichoderma longibrachiatum]]

Revision as of 08:41, 30 April 2014

High resolution structure of xylanase-II from one micron beam experiment

2jic, resolution 1.50Å

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