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1tet

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[[Image:1tet.gif|left|200px]]
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{{STRUCTURE_1tet| PDB=1tet | SCENE= }}
{{STRUCTURE_1tet| PDB=1tet | SCENE= }}
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'''CRYSTAL STRUCTURE OF AN ANTICHOLERA TOXIN PEPTIDE COMPLEX AT 2.3 ANGSTROMS'''
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===CRYSTAL STRUCTURE OF AN ANTICHOLERA TOXIN PEPTIDE COMPLEX AT 2.3 ANGSTROMS===
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==Overview==
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Cholera toxin peptide 3 (CTP3) is a 15-residue peptide corresponding in sequence to an immunogenic loop on the surface of the B-subunits of both cholera toxin and the heat-labile toxin from Escherichia coli. TE33 is the Fab fragment of a monoclonal antibody elicited against CTP3. The crystal structure of the TE33-CTP3 complex at 2.3 A resolution reveals an antigen-binding pocket, 13 A deep and 13 A wide, which is lined with many aromatic residues. The N-terminal portion of the peptide antigen CTP3 forms a type II beta-turn that fits snugly into this pocket. At gln7 the peptide backbone of CTP3 forms a kink followed by an extended C-terminal chain that seals off the cleft and buries the beta-turn underneath it. All six complementarity-determining regions of TE33 contribute to the binding of CTP3. The antibody-peptide contacts include, in addition to van der Waals' interactions and hydrogen bonds, also one salt bridge and one water molecule, which mediates the interaction.
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(as it appears on PubMed at http://www.pubmed.gov), where 7690406 is the PubMed ID number.
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{{ABSTRACT_PUBMED_7690406}}
==About this Structure==
==About this Structure==
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[[Category: Shoham, M.]]
[[Category: Shoham, M.]]
[[Category: Immunoglobulin]]
[[Category: Immunoglobulin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:51:54 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 11:45:08 2008''

Revision as of 08:45, 29 July 2008

Image:1tet.png

Template:STRUCTURE 1tet

CRYSTAL STRUCTURE OF AN ANTICHOLERA TOXIN PEPTIDE COMPLEX AT 2.3 ANGSTROMS

Template:ABSTRACT PUBMED 7690406

About this Structure

1TET is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.

Reference

Crystal structure of an anticholera toxin peptide complex at 2.3 A., Shoham M, J Mol Biol. 1993 Aug 20;232(4):1169-75. PMID:7690406

Page seeded by OCA on Tue Jul 29 11:45:08 2008

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