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==Structures of leukocyte integrin aLb2: The aI domain, the headpiece, and the pocket for the internal ligand==
==Structures of leukocyte integrin aLb2: The aI domain, the headpiece, and the pocket for the internal ligand==
<StructureSection load='5e6r' size='340' side='right' caption='[[5e6r]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
<StructureSection load='5e6r' size='340' side='right'caption='[[5e6r]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[5e6r]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5E6R OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5E6R FirstGlance]. <br>
<table><tr><td colspan='2'>[[5e6r]] is a 2 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=5E6R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5E6R FirstGlance]. <br>
</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=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.901&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5e6s|5e6s]], [[5e6u|5e6u]], [[5e6w|5e6w]], [[5e6x|5e6x]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=5e6r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5e6r OCA], [http://pdbe.org/5e6r PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5e6r RCSB], [http://www.ebi.ac.uk/pdbsum/5e6r PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5e6r 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=5e6r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5e6r OCA], [https://pdbe.org/5e6r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5e6r RCSB], [https://www.ebi.ac.uk/pdbsum/5e6r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5e6r ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/ITB2_HUMAN ITB2_HUMAN]] Defects in ITGB2 are the cause of leukocyte adhesion deficiency type 1 (LAD1) [MIM:[http://omim.org/entry/116920 116920]]. LAD1 patients have recurrent bacterial infections and their leukocytes are deficient in a wide range of adhesion-dependent functions.<ref>PMID:7509236</ref> <ref>PMID:1346613</ref> <ref>PMID:1968911</ref> <ref>PMID:1694220</ref> <ref>PMID:1590804</ref> <ref>PMID:1352501</ref> <ref>PMID:1347532</ref> <ref>PMID:7686755</ref> <ref>PMID:9884339</ref> <ref>PMID:20529581</ref> <ref>PMID:20549317</ref> 
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/ITAL_HUMAN ITAL_HUMAN]] Integrin alpha-L/beta-2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. It is involved in a variety of immune phenomena including leukocyte-endothelial cell interaction, cytotoxic T-cell mediated killing, and antibody dependent killing by granulocytes and monocytes. [[http://www.uniprot.org/uniprot/ITB2_HUMAN ITB2_HUMAN]] Integrin alpha-L/beta-2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. Integrins alpha-M/beta-2 and alpha-X/beta-2 are receptors for the iC3b fragment of the third complement component and for fibrinogen. Integrin alpha-X/beta-2 recognizes the sequence G-P-R in fibrinogen alpha-chain. Integrin alpha-M/beta-2 recognizes P1 and P2 peptides of fibrinogen gamma chain. Integrin alpha-M/beta-2 is also a receptor for factor X. Integrin alpha-D/beta-2 is a receptor for ICAM3 and VCAM1. Triggers neutrophil transmigration during lung injury through PTK2B/PYK2-mediated activation.<ref>PMID:18587400</ref> 
[https://www.uniprot.org/uniprot/ITAL_HUMAN ITAL_HUMAN] Integrin alpha-L/beta-2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. It is involved in a variety of immune phenomena including leukocyte-endothelial cell interaction, cytotoxic T-cell mediated killing, and antibody dependent killing by granulocytes and monocytes.
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 5e6r" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 5e6r" style="background-color:#fffaf0;"></div>
==See Also==
*[[Integrin 3D structures|Integrin 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Sen, M]]
[[Category: Homo sapiens]]
[[Category: Springer, T A]]
[[Category: Large Structures]]
[[Category: Cell adhesion]]
[[Category: Sen M]]
[[Category: Lfa-1]]
[[Category: Springer TA]]
[[Category: Lymphocyte function-associated antigen-1]]

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