1tet: Difference between revisions
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[[Image:1tet.gif|left|200px]] | [[Image:1tet.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE OF AN ANTICHOLERA TOXIN PEPTIDE COMPLEX AT 2.3 ANGSTROMS''' | {{Structure | ||
|PDB= 1tet |SIZE=350|CAPTION= <scene name='initialview01'>1tet</scene>, resolution 2.3Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=CIT:CITRIC ACID'>CIT</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF AN ANTICHOLERA TOXIN PEPTIDE COMPLEX AT 2.3 ANGSTROMS''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1TET is a [ | 1TET is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TET OCA]. | ||
==Reference== | ==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:[http:// | 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:[http://www.ncbi.nlm.nih.gov/pubmed/7690406 7690406] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: immunoglobulin]] | [[Category: immunoglobulin]] | ||
''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 14:17:24 2008'' | ||
Revision as of 15:17, 20 March 2008
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF AN ANTICHOLERA TOXIN PEPTIDE COMPLEX AT 2.3 ANGSTROMS
OverviewOverview
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.
About this StructureAbout this Structure
1TET is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.
ReferenceReference
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
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