1ova: Difference between revisions
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[[Image:1ova.gif|left|200px]] | [[Image:1ova.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION''' | {{Structure | ||
|PDB= 1ova |SIZE=350|CAPTION= <scene name='initialview01'>1ova</scene>, resolution 1.95Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PO3:PHOSPHITE+ION'>PO3</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=ACE:ACETYL GROUP'>ACE</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1OVA is a [ | 1OVA is a [[Single protein]] structure of sequence from [http://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]. | ||
==Reference== | ==Reference== | ||
Crystal structure of uncleaved ovalbumin at 1.95 A resolution., Stein PE, Leslie AG, Finch JT, Carrell RW, J Mol Biol. 1991 Oct 5;221(3):941-59. PMID:[http:// | Crystal structure of uncleaved ovalbumin at 1.95 A resolution., Stein PE, Leslie AG, Finch JT, Carrell RW, J Mol Biol. 1991 Oct 5;221(3):941-59. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1942038 1942038] | ||
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: serpin]] | [[Category: serpin]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:16:02 2008'' | ||
Revision as of 11:16, 20 March 2008
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| 1ova, resolution 1.95Å | |||||||||||||
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| Ligands: | NAG, PO3, CA and ACE | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
CRYSTAL STRUCTURE OF UNCLEAVED OVALBUMIN AT 1.95 ANGSTROMS RESOLUTION
Overview
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.
About this Structure
1OVA is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.
Reference
Crystal structure of uncleaved ovalbumin at 1.95 A resolution., Stein PE, Leslie AG, Finch JT, Carrell RW, J Mol Biol. 1991 Oct 5;221(3):941-59. PMID:1942038
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