1fat: Difference between revisions

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[[Image:1fat.gif|left|200px]]
{{Seed}}
[[Image:1fat.png|left|200px]]


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{{STRUCTURE_1fat|  PDB=1fat  |  SCENE=  }}  
{{STRUCTURE_1fat|  PDB=1fat  |  SCENE=  }}  


'''PHYTOHEMAGGLUTININ-L'''
===PHYTOHEMAGGLUTININ-L===




==Overview==
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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.
The line below this paragraph, {{ABSTRACT_PUBMED_8702788}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 8702788 is the PubMed ID number.
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{{ABSTRACT_PUBMED_8702788}}


==About this Structure==
==About this Structure==
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[[Category: Lectin]]
[[Category: Lectin]]
[[Category: Plant defense protein]]
[[Category: Plant defense protein]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:06:48 2008''
 
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Revision as of 23:58, 30 June 2008

File:1fat.png

Template:STRUCTURE 1fat

PHYTOHEMAGGLUTININ-L

Template:ABSTRACT PUBMED 8702788

About this Structure

1FAT is a Single protein structure of sequence from Phaseolus vulgaris. Full crystallographic information is available from OCA.

Reference

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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