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1bnr

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[[Image:1bnr.gif|left|200px]]
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{{Seed}}
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[[Image:1bnr.png|left|200px]]
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{{STRUCTURE_1bnr| PDB=1bnr | SCENE= }}
{{STRUCTURE_1bnr| PDB=1bnr | SCENE= }}
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'''BARNASE'''
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===BARNASE===
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==Overview==
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The solution conformation of the ribonuclease barnase has been determined by using 1H nuclear magnetic resonance (NMR) spectroscopy. The 20 structures were calculated by using 853 interproton distance restraints obtained from analyses of two-dimensional nuclear Overhauser spectra, 72 phi and 53 chi 1 torsion angle restraints, and 17 hydrogen-bond distance restraints. The calculated structures contain two alpha-helices (residues 6-18 and 26-34) and a five-stranded antiparallel beta-sheet (residues 50-55, 70-75, 85-91, 94-101, and 105-108). The core of the protein is formed by the packing of one of the alpha-helices (residues 6-18) onto the beta-sheet. The average RMS deviation between the calculated structures and the mean structure is 1.11 A for the backbone atoms and 1.75 A for all atoms. The protein is least well-defined in the N-terminal region and in three large loops. When these regions are excluded, the average RMS deviation between the calculated structures and the mean structure for residues 5-34, 50-56, 71-76, 85-109 is 0.62 A for the backbone atoms and 1.0 A for all atoms. The NMR-derived structure has been compared with the crystal structure of barnase [Mauguen et al. (1982) Nature (London) 297, 162-164].
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The line below this paragraph, {{ABSTRACT_PUBMED_1888730}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 1888730 is the PubMed ID number.
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{{ABSTRACT_PUBMED_1888730}}
==About this Structure==
==About this Structure==
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1BNR is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BNR OCA].
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1BNR is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BNR OCA].
==Reference==
==Reference==
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[[Category: Bycroft, M.]]
[[Category: Bycroft, M.]]
[[Category: Microbial ribonuclease]]
[[Category: Microbial ribonuclease]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 11:44:40 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 19:26:07 2008''

Revision as of 16:26, 30 June 2008

Image:1bnr.png

Template:STRUCTURE 1bnr

BARNASE

Template:ABSTRACT PUBMED 1888730

About this Structure

1BNR is a Single protein structure of sequence from Bacillus amyloliquefaciens. Full experimental information is available from OCA.

Reference

Determination of the three-dimensional solution structure of barnase using nuclear magnetic resonance spectroscopy., Bycroft M, Ludvigsen S, Fersht AR, Poulsen FM, Biochemistry. 1991 Sep 3;30(35):8697-701. PMID:1888730

Page seeded by OCA on Mon Jun 30 19:26:07 2008

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