1hj9

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[[Image:1hj9.jpg|left|200px]]
 
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==Atomic resolution structures of trypsin provide insight into structural radiation damage==
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The line below this paragraph, containing "STRUCTURE_1hj9", creates the "Structure Box" on the page.
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<StructureSection load='1hj9' size='340' side='right'caption='[[1hj9]], [[Resolution|resolution]] 0.95&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1hj9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HJ9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HJ9 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 0.95&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANL:ANILINE'>ANL</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1hj9| PDB=1hj9 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1hj9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hj9 OCA], [https://pdbe.org/1hj9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hj9 RCSB], [https://www.ebi.ac.uk/pdbsum/1hj9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hj9 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TRY1_BOVIN TRY1_BOVIN]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|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/hj/1hj9_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=1hj9 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Radiation damage is an inherent problem in protein X-ray crystallography and the process has recently been shown to be highly specific, exhibiting features such as cleavage of disulfide bonds, decarboxylation of acidic residues, increase in atomic B factors and increase in unit-cell volume. Reported here are two trypsin structures at atomic resolution (1.00 and 0.95 A), the data for which were collected at a third-generation synchrotron (ESRF) at two different beamlines. Both trypsin structures exhibit broken disulfide bonds; in particular, the bond from Cys191 to Cys220 is very sensitive to synchrotron radiation. The data set collected at the most intense beamline (ID14-EH4) shows increased structural radiation damage in terms of lower occupancies for cysteine residues, more breakage in the six disulfide bonds and more alternate conformations. It appears that high intensity and not only the total X-ray dose is most harmful to protein crystals.
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'''ATOMIC RESOLUTION STRUCTURES OF TRYPSIN PROVIDE INSIGHT INTO STRUCTURAL RADIATION DAMAGE'''
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Atomic resolution structures of trypsin provide insight into structural radiation damage.,Leiros HK, McSweeney SM, Smalas AO Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:11264577<ref>PMID:11264577</ref>
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==Overview==
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Radiation damage is an inherent problem in protein X-ray crystallography and the process has recently been shown to be highly specific, exhibiting features such as cleavage of disulfide bonds, decarboxylation of acidic residues, increase in atomic B factors and increase in unit-cell volume. Reported here are two trypsin structures at atomic resolution (1.00 and 0.95 A), the data for which were collected at a third-generation synchrotron (ESRF) at two different beamlines. Both trypsin structures exhibit broken disulfide bonds; in particular, the bond from Cys191 to Cys220 is very sensitive to synchrotron radiation. The data set collected at the most intense beamline (ID14-EH4) shows increased structural radiation damage in terms of lower occupancies for cysteine residues, more breakage in the six disulfide bonds and more alternate conformations. It appears that high intensity and not only the total X-ray dose is most harmful to protein crystals.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1HJ9 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HJ9 OCA].
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</div>
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<div class="pdbe-citations 1hj9" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Atomic resolution structures of trypsin provide insight into structural radiation damage., Leiros HK, McSweeney SM, Smalas AO, Acta Crystallogr D Biol Crystallogr. 2001 Apr;57(Pt 4):488-97. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11264577 11264577]
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*[[Trypsin 3D structures|Trypsin 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Trypsin]]
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[[Category: Leiros H-KS]]
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[[Category: Leiros, H K.S.]]
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[[Category: McSweeney SM]]
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[[Category: Mcsweeney, S M.]]
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[[Category: Smalas AO]]
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[[Category: Smalas, A O.]]
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[[Category: Atomic resolution]]
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[[Category: Disulphid bond breakage]]
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[[Category: Radiation damage]]
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[[Category: Serine proteinase]]
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[[Category: Trypsin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 18:54:00 2008''
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Current revision

Atomic resolution structures of trypsin provide insight into structural radiation damage

PDB ID 1hj9

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