1bwo: Difference between revisions
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'''THE CRYSTAL STRUCTURE OF WHEAT NON-SPECIFIC TRANSFER PROTEIN COMPLEXED WITH TWO MOLECULES OF PHOSPHOLIPID AT 2.1 A RESOLUTION''' | '''THE CRYSTAL STRUCTURE OF WHEAT NON-SPECIFIC TRANSFER PROTEIN COMPLEXED WITH TWO MOLECULES OF PHOSPHOLIPID AT 2.1 A RESOLUTION''' | ||
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[[Category: Cohen-Addad, C.]] | [[Category: Cohen-Addad, C.]] | ||
[[Category: Pebay-Peyroula, E.]] | [[Category: Pebay-Peyroula, E.]] | ||
[[Category: | [[Category: Crystallography]] | ||
[[Category: | [[Category: Lipid binding]] | ||
[[Category: | [[Category: Lipid transfer protein]] | ||
[[Category: | [[Category: Wheat]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 12:02:46 2008'' | |||
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Revision as of 09:02, 2 May 2008
THE CRYSTAL STRUCTURE OF WHEAT NON-SPECIFIC TRANSFER PROTEIN COMPLEXED WITH TWO MOLECULES OF PHOSPHOLIPID AT 2.1 A RESOLUTION
Overview
Nonspecific lipid transfer proteins (ns-LTP1) form a multigenic protein family in plants. In vitro they are able to bind all sort of lipids but their function, in vivo, remains speculative. A ns-LTP1 isolated from wheat seed was crystallized in the presence of lyso-myristoyl-phosphatidylcholine (LMPC). The structure was solved by molecular replacement and refined to 2.1 A resolution to an R-factor of 16.3% and a free R-factor of 21.3%. It reveals for the first time that the protein binds two LMPC molecules that are inserted head to tail in a hydrophobic cavity. A detailed study of the structure leads to the conclusion that there are two lipid-binding sites, one of which shows a higher affinity for the LMPC than the other. Comparison with other structures of lipid-bound ns-LTP1 suggests that the presence of two binding sites is a general feature of plant ns-LTP1.
About this Structure
1BWO is a Single protein structure of sequence from Triticum aestivum. Full crystallographic information is available from OCA.
Reference
The crystal structure of a wheat nonspecific lipid transfer protein (ns-LTP1) complexed with two molecules of phospholipid at 2.1 A resolution., Charvolin D, Douliez JP, Marion D, Cohen-Addad C, Pebay-Peyroula E, Eur J Biochem. 1999 Sep;264(2):562-8. PMID:10491104 Page seeded by OCA on Fri May 2 12:02:46 2008
