1bw3

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[[Image:1bw3.gif|left|200px]]
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{{Seed}}
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[[Image:1bw3.png|left|200px]]
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{{STRUCTURE_1bw3| PDB=1bw3 | SCENE= }}
{{STRUCTURE_1bw3| PDB=1bw3 | SCENE= }}
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'''THREE-DIMENSIONAL STRUCTURE IN SOLUTION OF BARWIN, A PROTEIN FROM BARLEY SEED'''
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===THREE-DIMENSIONAL STRUCTURE IN SOLUTION OF BARWIN, A PROTEIN FROM BARLEY SEED===
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==Overview==
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The solution structure of a 125-residue basic protein, barwin, has been determined using 1H nuclear magnetic resonance spectroscopy. This protein is closely related to domains in proteins encoded by wound-induced genes in plants. Analysis of the 1H nuclear Overhauser spectrum revealed the assignment of more than 1400 nuclear Overhauser effects. Twenty structures were calculated based on 676 nontrivial distance restraints, 152 torsion angle restraints (92 phi, 56 chi 1, and 4 omega for proline), and stereospecific assignments of 38 chiral centers, using distance geometry, simulated annealing, and restrained energy minimization. None of the distance restraints was violated by more than 0.5 A in any of the 20 structures, and none of the torsion angle restraints was violated by more than 1 degree in any of the structures. The RMS difference between the calculated and target interproton distance restraints is 0.033 A, and the average atomic RMS differences between the 20 structures and their geometric average are 1.23 A for backbone atoms and 1.73 A for all heavy atoms. The dominating structural feature of the protein is a well-defined four-stranded antiparallel beta-sheet, two parallel beta-sheets packed antiparallel to each other and four short alpha-helices. The binding site of barwin to the tetramer N-acetylglucosamine has been qualitatively investigated, and the dissociation constant of the complex has been determined using one-dimensional 1H nuclear magnetic resonance spectroscopy.
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The line below this paragraph, {{ABSTRACT_PUBMED_1390665}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 1390665 is the PubMed ID number.
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{{ABSTRACT_PUBMED_1390665}}
==About this Structure==
==About this Structure==
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1BW3 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Hordeum_vulgare Hordeum vulgare]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BW3 OCA].
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1BW3 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Hordeum_vulgare Hordeum vulgare]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BW3 OCA].
==Reference==
==Reference==
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[[Category: Poulsen, F M.]]
[[Category: Poulsen, F M.]]
[[Category: Lectin]]
[[Category: Lectin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 12:01:27 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 19:48:28 2008''

Revision as of 16:48, 30 June 2008

Image:1bw3.png

Template:STRUCTURE 1bw3

THREE-DIMENSIONAL STRUCTURE IN SOLUTION OF BARWIN, A PROTEIN FROM BARLEY SEED

Template:ABSTRACT PUBMED 1390665

About this Structure

1BW3 is a Single protein structure of sequence from Hordeum vulgare. Full experimental information is available from OCA.

Reference

Three-dimensional structure in solution of barwin, a protein from barley seed., Ludvigsen S, Poulsen FM, Biochemistry. 1992 Sep 22;31(37):8783-9. PMID:1390665

Page seeded by OCA on Mon Jun 30 19:48:28 2008

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