1jr0

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[[Image:1jr0.jpg|left|200px]]
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{{Seed}}
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[[Image:1jr0.png|left|200px]]
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{{STRUCTURE_1jr0| PDB=1jr0 | SCENE= }}
{{STRUCTURE_1jr0| PDB=1jr0 | SCENE= }}
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'''CHOLERA TOXIN B-PENTAMER WITH LIGAND BMSC-0011'''
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===CHOLERA TOXIN B-PENTAMER WITH LIGAND BMSC-0011===
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==Overview==
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The action of cholera toxin and E. coli heat-labile enterotoxin can be inhibited by blocking their binding to the cell-surface receptor GM1. We have used anchor-based design to create 15 receptor binding inhibitors that contain the previously characterized inhibitor MNPG as a substructure. In ELISA assays, all 15 compounds exhibited increased potency relative to MNPG. Binding affinities for two compounds, each containing a morpholine ring linked to MNPG via a hydrophobic tail, were characterized by pulsed ultrafiltration (PUF) and isothermal titration calorimetry (ITC). Crystal structures for these compounds bound to toxin B pentamer revealed a conserved binding mode for the MNPG moiety, with multiple binding modes adopted by the attached morpholine derivatives. The observed binding interactions can be exploited in the design of improved toxin binding inhibitors.
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(as it appears on PubMed at http://www.pubmed.gov), where 11880036 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11880036}}
==About this Structure==
==About this Structure==
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[[Category: Enterotoxin]]
[[Category: Enterotoxin]]
[[Category: Receptor]]
[[Category: Receptor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 21:42:57 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 20:40:17 2008''

Revision as of 17:40, 1 July 2008

Image:1jr0.png

Template:STRUCTURE 1jr0

CHOLERA TOXIN B-PENTAMER WITH LIGAND BMSC-0011

Template:ABSTRACT PUBMED 11880036

About this Structure

1JR0 is a Single protein structure of sequence from Vibrio cholerae. Full crystallographic information is available from OCA.

Reference

Anchor-based design of improved cholera toxin and E. coli heat-labile enterotoxin receptor binding antagonists that display multiple binding modes., Pickens JC, Merritt EA, Ahn M, Verlinde CL, Hol WG, Fan E, Chem Biol. 2002 Feb;9(2):215-24. PMID:11880036

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