1uzv: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1uzv.gif|left|200px]] | [[Image:1uzv.gif|left|200px]] | ||
'''HIGH AFFINITY FUCOSE BINDING OF PSEUDOMONAS AERUGINOSA LECTIN II: 1.0 A CRYSTAL STRUCTURE OF THE COMPLEX''' | {{Structure | ||
|PDB= 1uzv |SIZE=350|CAPTION= <scene name='initialview01'>1uzv</scene>, resolution 1.00Å | |||
|SITE= <scene name='pdbsite=C1A:Fuc+Binding+Site+For+Chain+D'>C1A</scene> | |||
|LIGAND= <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=CA:CALCIUM ION'>CA</scene> | |||
|ACTIVITY= | |||
|GENE= | |||
}} | |||
'''HIGH AFFINITY FUCOSE BINDING OF PSEUDOMONAS AERUGINOSA LECTIN II: 1.0 A CRYSTAL STRUCTURE OF THE COMPLEX''' | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
1UZV is a [ | 1UZV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UZV OCA]. | ||
==Reference== | ==Reference== | ||
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:[http:// | 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:[http://www.ncbi.nlm.nih.gov/pubmed/15573375 15573375] | ||
[[Category: Pseudomonas aeruginosa]] | [[Category: Pseudomonas aeruginosa]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| Line 30: | Line 39: | ||
[[Category: lectin]] | [[Category: lectin]] | ||
''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 14:39:04 2008'' | ||
Revision as of 15:39, 20 March 2008
| |||||||
| , resolution 1.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | , and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
HIGH AFFINITY FUCOSE BINDING OF PSEUDOMONAS AERUGINOSA LECTIN II: 1.0 A CRYSTAL STRUCTURE OF THE COMPLEX
OverviewOverview
PA-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.
About this StructureAbout this Structure
1UZV is a Single protein structure of sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA.
ReferenceReference
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
Page seeded by OCA on Thu Mar 20 14:39:04 2008