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1ova
From Proteopedia
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==CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION== | ==CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION== | ||
| - | <StructureSection load='1ova' size='340' side='right' caption='[[1ova]], [[Resolution|resolution]] 1.95Å' scene=''> | + | <StructureSection load='1ova' size='340' side='right'caption='[[1ova]], [[Resolution|resolution]] 1.95Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1ova]] is a 4 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1ova]] is a 4 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=1OVA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OVA FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95Å</td></tr> |
| - | <tr id=' | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ova FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ova OCA], [https://pdbe.org/1ova PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ova RCSB], [https://www.ebi.ac.uk/pdbsum/1ova PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ova ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == Function == | ||
| - | [ | + | [https://www.uniprot.org/uniprot/OVAL_CHICK OVAL_CHICK] Non-inhibitory serpin. Storage protein of egg white.<ref>PMID:6749856</ref> <ref>PMID:3732511</ref> |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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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=1ova ConSurf]. | </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=1ova ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Ovalbumin, the major protein in avian egg-white, is a non-inhibitory member of the serine protease inhibitor (serpin) superfamily. The crystal structure of uncleaved, hen ovalbumin was solved by the molecular replacement method using the structure of plakalbumin, a proteolytically cleaved form of ovalbumin, as a starting model. The final refined model, including four ovalbumin molecules, 678 water molecules and a single metal ion, has a crystallographic R-factor of 17.4% for all reflections between 6.0 and 1.95 A resolution. The root-mean-square deviation from ideal values in bond lengths is 0.02 A and in bond angles is 2.9 degrees. This is the first crystal structure of a member of the serpin family in an uncleaved form. Surprisingly, the peptide that is homologous to the reactive centre of inhibitory serpins adopts an alpha-helical conformation. The implications for the mechanism of inhibition of the inhibitory members of the family is discussed. | ||
| - | + | ==See Also== | |
| - | + | *[[Ovalbumin|Ovalbumin]] | |
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== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Gallus gallus]] |
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Leslie AGW]] |
| - | [[Category: | + | [[Category: Stein PE]] |
Current revision
CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION
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