1fat: Difference between revisions
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[[Image:1fat.gif|left|200px]]<br /><applet load="1fat" size=" | [[Image:1fat.gif|left|200px]]<br /><applet load="1fat" size="350" color="white" frame="true" align="right" spinBox="true" | ||
caption="1fat, resolution 2.8Å" /> | caption="1fat, resolution 2.8Å" /> | ||
'''PHYTOHEMAGGLUTININ-L'''<br /> | '''PHYTOHEMAGGLUTININ-L'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
1FAT is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris] with NAG, MN and CA as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Sites: <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>. Full crystallographic information is available from [http:// | 1FAT is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris] with <scene name='pdbligand=NAG:'>NAG</scene>, <scene name='pdbligand=MN:'>MN</scene> and <scene name='pdbligand=CA:'>CA</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Sites: <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>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FAT OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: plant defense protein]] | [[Category: plant defense protein]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Feb 3 09:39:40 2008'' | ||
Revision as of 10:39, 3 February 2008
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PHYTOHEMAGGLUTININ-L
OverviewOverview
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.
About this StructureAbout this Structure
1FAT is a Single protein structure of sequence from Phaseolus vulgaris with , and as ligands. Known structural/functional Sites: , , , , , , and . Full crystallographic information is available from OCA.
ReferenceReference
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:8702788
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