1jr0

From Proteopedia

(Difference between revisions)

Revision as of 07:34, 25 November 2020

CHOLERA TOXIN B-PENTAMER WITH LIGAND BMSC-0011

Structural highlights

1jr0 is a 5 chain structure with sequence from "bacillo_virgola_del_koch"_trevisan_1884 "bacillo virgola del koch" trevisan 1884. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1lts, 1lta, 1lt6, 1fd7, 1jqy
Gene:	ctxb ("Bacillo virgola del Koch" Trevisan 1884)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CHTB_VIBCH] The B subunit pentameric ring directs the A subunit to its target by binding to the GM1 gangliosides present on the surface of the intestinal epithelial cells. It can bind five GM1 gangliosides. It has no toxic activity by itself.

Publication Abstract from PubMed

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.

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^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

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

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1jr0"

@@ Line 1: / Line 1: @@
 ==CHOLERA TOXIN B-PENTAMER WITH LIGAND BMSC-0011==
-<StructureSection load='1jr0' size='340' side='right' caption='[[1jr0]], [[Resolution|resolution]] 1.30&Aring;' scene=''>
+<StructureSection load='1jr0' size='340' side='right'caption='[[1jr0]], [[Resolution|resolution]] 1.30&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1jr0]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillo_virgola_del_koch"_trevisan_1884 "bacillo virgola del koch" trevisan 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JR0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JR0 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1jr0]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillo_virgola_del_koch"_trevisan_1884 "bacillo virgola del koch" trevisan 1884]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JR0 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1JR0 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=A24:(3-NITRO-5-(2-MORPHOLIN-4-YL-ETHYLAMINOCARBONYL)PHENYL)-GALACTOPYRANOSIDE'>A24</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A24:(3-NITRO-5-(2-MORPHOLIN-4-YL-ETHYLAMINOCARBONYL)PHENYL)-GALACTOPYRANOSIDE'>A24</scene></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1lts|1lts]], [[1lta|1lta]], [[1lt6|1lt6]], [[1fd7|1fd7]], [[1jqy|1jqy]]</td></tr>
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1lts|1lts]], [[1lta|1lta]], [[1lt6|1lt6]], [[1fd7|1fd7]], [[1jqy|1jqy]]</div></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ctxb ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=666 "Bacillo virgola del Koch" Trevisan 1884])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jr0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jr0 OCA], [http://pdbe.org/1jr0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1jr0 RCSB], [http://www.ebi.ac.uk/pdbsum/1jr0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1jr0 ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1jr0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jr0 OCA], [http://pdbe.org/1jr0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1jr0 RCSB], [http://www.ebi.ac.uk/pdbsum/1jr0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1jr0 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 22: / Line 22: @@
 ==See Also==
-*[[Cholera toxin|Cholera toxin]]
+*[[Cholera toxin 3D structures|Cholera toxin 3D structures]]
 *[[User:David Solfiell/sandbox 1|User:David Solfiell/sandbox 1]]
 == References ==
@@ Line 29: / Line 29: @@
 </StructureSection>
 [[Category: Bacillo virgola del koch trevisan 1884]]
+[[Category: Large Structures]]
 [[Category: Hol, W G.J]]
 [[Category: Merritt, E A]]

1jr0

From Proteopedia

Revision as of 07:34, 25 November 2020

CHOLERA TOXIN B-PENTAMER WITH LIGAND BMSC-0011

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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