1bsr
From Proteopedia
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| - | [[Image:1bsr.gif|left|200px]] | + | [[Image:1bsr.gif|left|200px]] |
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| - | '''BOVINE SEMINAL RIBONUCLEASE STRUCTURE AT 1.9 ANGSTROMS RESOLUTION''' | + | {{Structure |
| + | |PDB= 1bsr |SIZE=350|CAPTION= <scene name='initialview01'>1bsr</scene>, resolution 1.9Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''BOVINE SEMINAL RIBONUCLEASE STRUCTURE AT 1.9 ANGSTROMS RESOLUTION''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1BSR is a [ | + | 1BSR 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=1BSR OCA]. |
==Reference== | ==Reference== | ||
| - | Bovine seminal ribonuclease: structure at 1.9 A resolution., Mazzarella L, Capasso S, Demasi D, Di Lorenzo G, Mattia CA, Zagari A, Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):389-402. PMID:[http:// | + | Bovine seminal ribonuclease: structure at 1.9 A resolution., Mazzarella L, Capasso S, Demasi D, Di Lorenzo G, Mattia CA, Zagari A, Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):389-402. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15299514 15299514] |
[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: rna)]] | [[Category: rna)]] | ||
| - | ''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 10:15:17 2008'' |
Revision as of 08:15, 20 March 2008
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| , resolution 1.9Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
BOVINE SEMINAL RIBONUCLEASE STRUCTURE AT 1.9 ANGSTROMS RESOLUTION
Overview
The crystal structure of bovine seminal ribonuclease, a homodimeric enzyme closely related to pancreatic ribonuclease, has been refined at a nominal resolution of 1.9 A employing data collected on an electronic area detector. The final model consists of two chains containing 1990 non-H atoms, seven sulfate anions and 113 water molecules per asymmetric unit. The unit-cell parameters are a = 36.5 (1), b = 66.7 (1) and c = 107.5 (2) A, space group P22(1)2(1). The R factor is 0.177 for 16 492 reflections in the resolution range 6.0-1.9 A and the deviations from ideal values of bond lengths and bond angles are 0.020 A and 3.7 degrees, respectively. The molecule is formed by two pancreatic like chains, which have their N-terminal segments interchanged so that each active site is formed by residues from both subunits. The two chains are related by a non-crystallographic twofold symmetry and are covalently linked by two consecutive disulfide bridges, which form an unusual sixteen-membered ring across the dimer interface. The deviations from the molecular symmetry, the hydration shell and the sulfate-binding sites are also discussed in relation to the known structure of the pancreatic enzyme.
About this Structure
1BSR is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.
Reference
Bovine seminal ribonuclease: structure at 1.9 A resolution., Mazzarella L, Capasso S, Demasi D, Di Lorenzo G, Mattia CA, Zagari A, Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):389-402. PMID:15299514
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