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1jy4

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[[Image:1jy4.jpg|left|200px]]
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{{Seed}}
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[[Image:1jy4.png|left|200px]]
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{{STRUCTURE_1jy4| PDB=1jy4 | SCENE= }}
{{STRUCTURE_1jy4| PDB=1jy4 | SCENE= }}
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'''B4DIMER: A DE NOVO DESIGNED EIGHT-STRANDED BETA-SHEET ASSEMBLED USING A DISULFIDE BOND'''
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===B4DIMER: A DE NOVO DESIGNED EIGHT-STRANDED BETA-SHEET ASSEMBLED USING A DISULFIDE BOND===
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==Overview==
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The design and characterization of an open eight-stranded beta-sheet in a synthetic, 2-fold symmetric 70-residue peptide is described. The design strategy involves the generation of a 35-residue four-stranded beta-sheet peptide in which successive hairpins are nucleated by appropriately positioned (D)Pro-Xxx sequences. Oxidative dimerization using a single Cys residue positioned at the center of the C-terminal strand results in a disulfide-bridged eight-stranded structure. Nuclear Overhauser effects firmly establish an eight-stranded beta-sheet in methanol. In water, the outer strands are frayed, but a well-defined four-stranded beta-sheet stabilized by a disulfide bridge and a hydrophobic cluster is determined from NMR data. Comparison of the precursor peptide with the disulfide-bridged dimer reveals considerable enhancement of beta-sheet content in the latter, suggesting that the disulfide cross-link is an effective strategy for the stabilization of beta-sheets.
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The line below this paragraph, {{ABSTRACT_PUBMED_11982362}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 11982362 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11982362}}
==About this Structure==
==About this Structure==
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JY4 OCA].
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Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JY4 OCA].
==Reference==
==Reference==
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[[Category: Disulfide bond]]
[[Category: Disulfide bond]]
[[Category: Eight-stranded beta-sheet]]
[[Category: Eight-stranded beta-sheet]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:03:54 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 08:07:36 2008''

Revision as of 05:07, 28 July 2008

Template:STRUCTURE 1jy4

B4DIMER: A DE NOVO DESIGNED EIGHT-STRANDED BETA-SHEET ASSEMBLED USING A DISULFIDE BOND

Template:ABSTRACT PUBMED 11982362

About this Structure

Full experimental information is available from OCA.

Reference

Design and construction of an open multistranded beta-sheet polypeptide stabilized by a disulfide bridge., Venkatraman J, Nagana Gowda GA, Balaram P, J Am Chem Soc. 2002 May 8;124(18):4987-94. PMID:11982362

Page seeded by OCA on Mon Jul 28 08:07:36 2008

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