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==MANNOSE-SPECIFIC AGGLUTININ (LECTIN) FROM SNOWDROP (GALANTHUS NIVALIS) BULBS COMPLEXED WITH METHYL-ALPHA-D-MANNOSIDE== | |||
<StructureSection load='1msa' size='340' side='right'caption='[[1msa]], [[Resolution|resolution]] 2.29Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1msa]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Galanthus_nivalis Galanthus nivalis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MSA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MSA 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]] 2.29Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MMA:O1-METHYL-MANNOSE'>MMA</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=1msa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1msa OCA], [https://pdbe.org/1msa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1msa RCSB], [https://www.ebi.ac.uk/pdbsum/1msa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1msa ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/LEC_GALNI LEC_GALNI] Mannose-specific lectin. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ms/1msa_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=1msa ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Tetrameric Galanthus nivalis agglutinin (50,000 M(r)) belongs to a super-family of alpha-D-mannose-specific plant bulb lectins known to be potent inhibitors of retroviruses. The 2.3 A crystal structure of this lectin complexed with methyl alpha-D-mannose reveals a novel three-fold symmetric beta-sheet polypeptide fold. Three antiparallel four-stranded beta-sheets, each with a conserved mannose-binding site, are arranged as a 12-stranded beta-barrel. The tetramer displays 222 symmetry. Pairs of monomers form stable dimers through C-terminal strand exchange. The so formed hybrid beta-sheets are the sites for high affinity mannose binding in the dimer interface. Occupancy observed at corresponding sites in other beta-sheets suggests a potential for twelve sites per tetramer. | |||
Structure of mannose-specific snowdrop (Galanthus nivalis) lectin is representative of a new plant lectin family.,Hester G, Kaku H, Goldstein IJ, Wright CS Nat Struct Biol. 1995 Jun;2(6):472-9. PMID:7664110<ref>PMID:7664110</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1msa" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[Agglutinin 3D structures|Agglutinin 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Galanthus nivalis]] | [[Category: Galanthus nivalis]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Hester | [[Category: Hester G]] | ||
[[Category: Wright | [[Category: Wright CS]] | ||
Latest revision as of 10:02, 30 October 2024
MANNOSE-SPECIFIC AGGLUTININ (LECTIN) FROM SNOWDROP (GALANTHUS NIVALIS) BULBS COMPLEXED WITH METHYL-ALPHA-D-MANNOSIDEMANNOSE-SPECIFIC AGGLUTININ (LECTIN) FROM SNOWDROP (GALANTHUS NIVALIS) BULBS COMPLEXED WITH METHYL-ALPHA-D-MANNOSIDE
Structural highlights
FunctionLEC_GALNI Mannose-specific lectin. 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 PubMedTetrameric Galanthus nivalis agglutinin (50,000 M(r)) belongs to a super-family of alpha-D-mannose-specific plant bulb lectins known to be potent inhibitors of retroviruses. The 2.3 A crystal structure of this lectin complexed with methyl alpha-D-mannose reveals a novel three-fold symmetric beta-sheet polypeptide fold. Three antiparallel four-stranded beta-sheets, each with a conserved mannose-binding site, are arranged as a 12-stranded beta-barrel. The tetramer displays 222 symmetry. Pairs of monomers form stable dimers through C-terminal strand exchange. The so formed hybrid beta-sheets are the sites for high affinity mannose binding in the dimer interface. Occupancy observed at corresponding sites in other beta-sheets suggests a potential for twelve sites per tetramer. Structure of mannose-specific snowdrop (Galanthus nivalis) lectin is representative of a new plant lectin family.,Hester G, Kaku H, Goldstein IJ, Wright CS Nat Struct Biol. 1995 Jun;2(6):472-9. PMID:7664110[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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