2pet: Difference between revisions
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==Lutheran glycoprotein, N-terminal domains 1 and 2.== | ==Lutheran glycoprotein, N-terminal domains 1 and 2.== | ||
<StructureSection load='2pet' size='340' side='right' caption='[[2pet]], [[Resolution|resolution]] 1.70Å' scene=''> | <StructureSection load='2pet' size='340' side='right' caption='[[2pet]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
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<table><tr><td colspan='2'>[[2pet]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PET OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2PET FirstGlance]. <br> | <table><tr><td colspan='2'>[[2pet]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PET OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2PET FirstGlance]. <br> | ||
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BCAM, LU, MSK19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BCAM, LU, MSK19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=2pet FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pet OCA], [http://pdbe.org/2pet PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pet RCSB], [http://www.ebi.ac.uk/pdbsum/2pet 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=2pet FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pet OCA], [http://pdbe.org/2pet PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pet RCSB], [http://www.ebi.ac.uk/pdbsum/2pet PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2pet ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pe/2pet_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pe/2pet_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> | ||
Revision as of 11:18, 29 August 2018
Lutheran glycoprotein, N-terminal domains 1 and 2.Lutheran glycoprotein, N-terminal domains 1 and 2.
Structural highlights
Function[BCAM_HUMAN] Laminin alpha-5 receptor. May mediate intracellular signaling.[1] 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 PubMedThe Lutheran blood group glycoprotein, first discovered on erythrocytes, is widely expressed in human tissues. It is a ligand for the alpha5 subunit of Laminin 511/521, an extracellular matrix protein. This interaction may contribute to vaso-occlusive events that are an important cause of morbidity in sickle cell disease. Using x-ray crystallography, small-angle x-ray scattering, and site-directed mutagenesis, we show that the extracellular region of Lutheran forms an extended structure with a distinctive bend between the second and third immunoglobulin-like domains. The linker between domains 2 and 3 appears to be flexible and is a critical determinant in maintaining an overall conformation for Lutheran that is capable of binding to Laminin. Mutagenesis studies indicate that Asp312 of Lutheran and the surrounding cluster of negatively charged residues in this linker region form the Laminin-binding site. Unusually, receptor binding is therefore not a function of the domains expected to be furthermost from the plasma membrane. These studies imply that structural flexibility of Lutheran may be essential for its interaction with Laminin and present a novel opportunity for the development of therapeutics for sickle cell disease. The Laminin 511/521-binding site on the Lutheran blood group glycoprotein is located at the flexible junction of Ig domains 2 and 3.,Mankelow TJ, Burton N, Stefansdottir FO, Spring FA, Parsons SF, Pedersen JS, Oliveira CL, Lammie D, Wess T, Mohandas N, Chasis JA, Brady RL, Anstee DJ Blood. 2007 Nov 1;110(9):3398-406. Epub 2007 Jul 17. PMID:17638854[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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