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1fat

From Proteopedia

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[[Image:1fat.gif|left|200px]]
 
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{{Structure
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==PHYTOHEMAGGLUTININ-L==
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|PDB= 1fat |SIZE=350|CAPTION= <scene name='initialview01'>1fat</scene>, resolution 2.8&Aring;
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<StructureSection load='1fat' size='340' side='right'caption='[[1fat]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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|SITE= <scene name='pdbsite=CAA:Ca+Binding+Site+In+Chain+A'>CAA</scene>, <scene name='pdbsite=CAB:Ca+Binding+Site+In+Chain+B'>CAB</scene>, <scene name='pdbsite=CAC:Ca+Binding+Site+In+Chain+C'>CAC</scene>, <scene name='pdbsite=CAD:Ca+Binding+Site+In+Chain+D'>CAD</scene>, <scene name='pdbsite=MNA:Mn+Binding+Site+In+Chain+A'>MNA</scene>, <scene name='pdbsite=MNB:Mn+Binding+Site+In+Chain+B'>MNB</scene>, <scene name='pdbsite=MNC:Mn+Binding+Site+In+Chain+C'>MNC</scene> and <scene name='pdbsite=MND:Mn+Binding+Site+In+Chain+D'>MND</scene>
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>
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<table><tr><td colspan='2'>[[1fat]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FAT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FAT FirstGlance]. <br>
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|ACTIVITY=
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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]] 2.8&#8491;</td></tr>
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|GENE=
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<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=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
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|DOMAIN=
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1fat FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fat OCA], [https://pdbe.org/1fat PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fat RCSB], [https://www.ebi.ac.uk/pdbsum/1fat PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fat ProSAT]</span></td></tr>
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|RELATEDENTRY=
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1fat FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fat OCA], [http://www.ebi.ac.uk/pdbsum/1fat PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1fat RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/PHAL_PHAVU PHAL_PHAVU] This insecticidal carbohydrate-binding lectin is toxic for the cowpea weevil.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fa/1fat_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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=1fat ConSurf].
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<div style="clear:both"></div>
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'''PHYTOHEMAGGLUTININ-L'''
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==See Also==
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*[[Hemagglutinin 3D structures|Hemagglutinin 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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The structure of phytohemagglutinin-L (PHA-L), a leucoagglutinating seed lectin from Phaseolus vulgaris, has been solved with molecular replacement using the coordinates of lentil lectin as model, and refined at a resolution of 2.8 A. The final R-factor of the structure is 20.0%. The quaternary structure of the PHA-L tetramer differs from the structures of the concanavalin A and peanut lectin tetramers, but resembles the structure of the soybean agglutinin tetramer. PHA-L consists of two canonical legume lectin dimers that pack together through the formation of a close contact between two beta-strands. Of the two covalently bound oligosaccharides per monomer, only one GlcNAc residue per monomer is visible in the electron density. In this article we describe the structure of PHA-L, and we discuss the putative position of the high affinity adenine-binding site present in a number of legume lectins. A comparison with transthyretin, a protein that shows a remarkable resemblance to PHA-L, gives further ground to our proposal.
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[[Category: Large Structures]]
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==About this Structure==
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1FAT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FAT OCA].
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==Reference==
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The crystallographic structure of phytohemagglutinin-L., Hamelryck TW, Dao-Thi MH, Poortmans F, Chrispeels MJ, Wyns L, Loris R, J Biol Chem. 1996 Aug 23;271(34):20479-85. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8702788 8702788]
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[[Category: Phaseolus vulgaris]]
[[Category: Phaseolus vulgaris]]
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[[Category: Single protein]]
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[[Category: Hamelryck T]]
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[[Category: Hamelryck, T.]]
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[[Category: Loris R]]
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[[Category: Loris, R.]]
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[[Category: glycoprotein]]
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[[Category: lectin]]
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[[Category: plant defense protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:19:19 2008''
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Current revision

PHYTOHEMAGGLUTININ-L

PDB ID 1fat

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