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[[Image:1uoj.gif|left|200px]]<br /><applet load="1uoj" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1uoj, resolution 2.40&Aring;" />
'''CRYSTAL STRUCTURE OF PSEUDOMONAS AERUGINOSA LECTIN 1 IN THE CALCIUM-FREE STATE'''<br />


==Overview==
==CRYSTAL STRUCTURE OF PSEUDOMONAS AERUGINOSA LECTIN 1 IN THE CALCIUM-FREE STATE==
<StructureSection load='1uoj' size='340' side='right'caption='[[1uoj]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1uoj]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UOJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UOJ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1uoj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uoj OCA], [https://pdbe.org/1uoj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uoj RCSB], [https://www.ebi.ac.uk/pdbsum/1uoj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uoj ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PA1L_PSEAE PA1L_PSEAE] D-galactose specific lectin. Binds in decreasing order of affinity: melibiose, methyl-alpha-D-galactoside, D-galactose, methyl-beta-D-galactoside, N-acetyl-D-galactosamine. Similar to plant lectins in its selective (carbohydrate-specific) hemagglutinating activity.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The structure of the tetrameric Pseudomonas aeruginosa lectin I (PA-IL) in complex with galactose and calcium was determined at 1.6 A resolution, and the native protein was solved at 2.4 A resolution. Each monomer adopts a beta-sandwich fold with ligand binding site at the apex. All galactose hydroxyl groups, except O1, are involved in a hydrogen bond network with the protein and O3 and O4 also participate in the co-ordination of the calcium ion. The stereochemistry of calcium galactose binding is reminiscent of that observed in some animal C-type lectins. The structure of the complex provides a framework for future design of anti-bacterial compounds.
The structure of the tetrameric Pseudomonas aeruginosa lectin I (PA-IL) in complex with galactose and calcium was determined at 1.6 A resolution, and the native protein was solved at 2.4 A resolution. Each monomer adopts a beta-sandwich fold with ligand binding site at the apex. All galactose hydroxyl groups, except O1, are involved in a hydrogen bond network with the protein and O3 and O4 also participate in the co-ordination of the calcium ion. The stereochemistry of calcium galactose binding is reminiscent of that observed in some animal C-type lectins. The structure of the complex provides a framework for future design of anti-bacterial compounds.


==About this Structure==
Structural basis of calcium and galactose recognition by the lectin PA-IL of Pseudomonas aeruginosa.,Cioci G, Mitchell EP, Gautier C, Wimmerova M, Sudakevitz D, Perez S, Gilboa-Garber N, Imberty A FEBS Lett. 2003 Dec 4;555(2):297-301. PMID:14644431<ref>PMID:14644431</ref>
1UOJ is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa] with <scene name='pdbligand=SO4:'>SO4</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UOJ OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Structural basis of calcium and galactose recognition by the lectin PA-IL of Pseudomonas aeruginosa., Cioci G, Mitchell EP, Gautier C, Wimmerova M, Sudakevitz D, Perez S, Gilboa-Garber N, Imberty A, FEBS Lett. 2003 Dec 4;555(2):297-301. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=14644431 14644431]
</div>
<div class="pdbe-citations 1uoj" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Galactose-binding lectin|Galactose-binding lectin]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Single protein]]
[[Category: Cioci G]]
[[Category: Cioci, G.]]
[[Category: Gautier C]]
[[Category: Gautier, C.]]
[[Category: Gilboa-Garber N]]
[[Category: Gilboa-Garber, N.]]
[[Category: Imberty A]]
[[Category: Imberty, A.]]
[[Category: Mitchell E]]
[[Category: Mitchell, E.]]
[[Category: Perez S]]
[[Category: Perez, S.]]
[[Category: Wimmerova M]]
[[Category: Wimmerova, M.]]
[[Category: SO4]]
[[Category: galactose binding]]
[[Category: lectin]]
 
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