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1bp1

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<StructureSection load='1bp1' size='340' side='right'caption='[[1bp1]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
<StructureSection load='1bp1' size='340' side='right'caption='[[1bp1]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[1bp1]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BP1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BP1 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[1bp1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BP1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BP1 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PC1:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PC1</scene></td></tr>
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</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>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PC1:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PC1</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=1bp1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bp1 OCA], [https://pdbe.org/1bp1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bp1 RCSB], [https://www.ebi.ac.uk/pdbsum/1bp1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bp1 ProSAT]</span></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=1bp1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bp1 OCA], [https://pdbe.org/1bp1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bp1 RCSB], [https://www.ebi.ac.uk/pdbsum/1bp1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bp1 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[https://www.uniprot.org/uniprot/BPI_HUMAN BPI_HUMAN]] The cytotoxic action of BPI is limited to many species of Gram-negative bacteria; this specificity may be explained by a strong affinity of the very basic N-terminal half for the negatively charged lipopolysaccharides that are unique to the Gram-negative bacterial outer envelope. Has antibacterial activity against the Gram-nagative bacterium P.aeruginosa, this activity is inhibited by LPS from P.aeruginosa.<ref>PMID:2722846</ref> <ref>PMID:1937776</ref>
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[https://www.uniprot.org/uniprot/BPI_HUMAN BPI_HUMAN] The cytotoxic action of BPI is limited to many species of Gram-negative bacteria; this specificity may be explained by a strong affinity of the very basic N-terminal half for the negatively charged lipopolysaccharides that are unique to the Gram-negative bacterial outer envelope. Has antibacterial activity against the Gram-nagative bacterium P.aeruginosa, this activity is inhibited by LPS from P.aeruginosa.<ref>PMID:2722846</ref> <ref>PMID:1937776</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1bp1 ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1bp1 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
 
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== Publication Abstract from PubMed ==
 
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Bactericidal/permeability-increasing protein (BPI), a potent antimicrobial protein of 456 residues, binds to and neutralizes lipopolysaccharides from the outer membrane of Gram-negative bacteria. At a resolution of 2.4 angstroms, the crystal structure of human BPI shows a boomerang-shaped molecule formed by two similar domains. Two apolar pockets on the concave surface of the boomerang each bind a molecule of phosphatidylcholine, primarily by interacting with their acyl chains; this suggests that the pockets may also bind the acyl chains of lipopolysaccharide. As a model for the related plasma lipid transfer proteins, BPI illuminates a mechanism of lipid transfer for this protein family.
 
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Crystal structure of human BPI and two bound phospholipids at 2.4 angstrom resolution.,Beamer LJ, Carroll SF, Eisenberg D Science. 1997 Jun 20;276(5320):1861-4. PMID:9188532<ref>PMID:9188532</ref>
 
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
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</div>
 
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<div class="pdbe-citations 1bp1" style="background-color:#fffaf0;"></div>
 
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Beamer, L J]]
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[[Category: Beamer LJ]]
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[[Category: Carroll, S F]]
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[[Category: Carroll SF]]
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[[Category: Eisenberg, D]]
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[[Category: Eisenberg D]]
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[[Category: Antibiotic]]
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[[Category: Bactericidal]]
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[[Category: Lipid-binding]]
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[[Category: Lipopolysaccharide-binding]]
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[[Category: Permeability-increasing]]
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Current revision

CRYSTAL STRUCTURE OF BPI, THE HUMAN BACTERICIDAL PERMEABILITY-INCREASING PROTEIN

PDB ID 1bp1

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