1uzv: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
==High affinity fucose binding of Pseudomonas aeruginosa lectin II: 1.0 A crystal structure of the complex== | ==High affinity fucose binding of Pseudomonas aeruginosa lectin II: 1.0 A crystal structure of the complex== | ||
<StructureSection load='1uzv' size='340' side='right' caption='[[1uzv]], [[Resolution|resolution]] 1.00Å' scene=''> | <StructureSection load='1uzv' size='340' side='right' caption='[[1uzv]], [[Resolution|resolution]] 1.00Å' scene=''> | ||
| Line 5: | Line 6: | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1gzt|1gzt]], [[1our|1our]], [[1ous|1ous]], [[1oux|1oux]], [[1ovp|1ovp]], [[1ovs|1ovs]], [[1oxc|1oxc]], [[1w38|1w38]], [[1w43|1w43]], [[1w8f|1w8f]], [[1w8h|1w8h]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1gzt|1gzt]], [[1our|1our]], [[1ous|1ous]], [[1oux|1oux]], [[1ovp|1ovp]], [[1ovs|1ovs]], [[1oxc|1oxc]], [[1w38|1w38]], [[1w43|1w43]], [[1w8f|1w8f]], [[1w8h|1w8h]]</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=1uzv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uzv OCA], [http://pdbe.org/1uzv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1uzv RCSB], [http://www.ebi.ac.uk/pdbsum/1uzv PDBsum]</span></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=1uzv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uzv OCA], [http://pdbe.org/1uzv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1uzv RCSB], [http://www.ebi.ac.uk/pdbsum/1uzv PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1uzv ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
| Line 11: | Line 12: | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uz/1uzv_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uz/1uzv_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
| Line 41: | Line 42: | ||
[[Category: Snajdrova, L]] | [[Category: Snajdrova, L]] | ||
[[Category: Wimmerova, M]] | [[Category: Wimmerova, M]] | ||
[[Category: Calcium]] | |||
[[Category: Fucose]] | [[Category: Fucose]] | ||
[[Category: Lectin]] | [[Category: Lectin]] | ||
Revision as of 10:39, 28 March 2018
High affinity fucose binding of Pseudomonas aeruginosa lectin II: 1.0 A crystal structure of the complexHigh affinity fucose binding of Pseudomonas aeruginosa lectin II: 1.0 A crystal structure of the complex
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedPA-IIL is a fucose-binding lectin from Pseudomonas aeruginosa that is closely related to the virulence factors of the bacterium. Previous structural studies have revealed a new carbohydrate-binding mode with direct involvement of two calcium ions (Mitchell E, Houles C, Sudakevitz D, Wimmerova M, Gautier C, Perez S, Wu AM, Gilboa-Garber N, Imberty A. Structural basis for selective recognition of oligosaccharides from cystic fibrosis patients by the lectin PA-IIL of Pseudomonas aeruginosa. Nat Struct Biol 2002;9:918-921). A combination of thermodynamic, structural, and computational methods has been used to study the basis of the high affinity for the monosaccharide ligand. A titration microcalorimetry study indicated that the high affinity is enthalpy driven. The crystal structure of the tetrameric PA-IIL in complex with fucose and calcium was refined to 1.0 A resolution and, in combination with modeling, allowed a proposal to be made for the hydrogen-bond network in the binding site. Calculations of partial charges using ab initio computational chemistry methods indicated that extensive delocalization of charges between the calcium ions, the side chains of the protein-binding site and the carbohydrate ligand is responsible for the high enthalpy of binding and therefore for the unusually high affinity observed for this unique mode of carbohydrate recognition. High affinity fucose binding of Pseudomonas aeruginosa lectin PA-IIL: 1.0 A resolution crystal structure of the complex combined with thermodynamics and computational chemistry approaches.,Mitchell EP, Sabin C, Snajdrova L, Pokorna M, Perret S, Gautier C, Hofr C, Gilboa-Garber N, Koca J, Wimmerova M, Imberty A Proteins. 2005 Feb 15;58(3):735-46. PMID:15573375[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
|
| ||||||||||||||||||