1wbe: Difference between revisions
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==Overview== | ==Overview== | ||
Glycolipids participate in many important cellular processes and they are, bound and transferred with high specificity by glycolipid transfer protein, (GLTP). We have solved three different X-ray structures of bovine GLTP at, 1.4 angstroms, 1.6 angstroms and 1.8 angstroms resolution, all with a, bound fatty acid or glycolipid. The 1.4 angstroms structure resembles the, recently characterized apo-form of the human GLTP but the other two, structures represent an intermediate conformation of the apo-GLTPs and the, human lactosylceramide-bound GLTP structure. These novel structures give, insight into the mechanism of lipid binding and how GLTP may, conformationally adapt to different lipids. Furthermore, based on the, structural comparison of the GLTP structures and the three-dimensional, . | Glycolipids participate in many important cellular processes and they are, bound and transferred with high specificity by glycolipid transfer protein, (GLTP). We have solved three different X-ray structures of bovine GLTP at, 1.4 angstroms, 1.6 angstroms and 1.8 angstroms resolution, all with a, bound fatty acid or glycolipid. The 1.4 angstroms structure resembles the, recently characterized apo-form of the human GLTP but the other two, structures represent an intermediate conformation of the apo-GLTPs and the, human lactosylceramide-bound GLTP structure. These novel structures give, insight into the mechanism of lipid binding and how GLTP may, conformationally adapt to different lipids. Furthermore, based on the, structural comparison of the GLTP structures and the three-dimensional, models of the related Podospora anserina HET-C2 and Arabidopsis thaliana, accelerated cell death protein, ACD11, we give structural explanations for, their specific lipid binding properties. | ||
==About this Structure== | ==About this Structure== | ||
1WBE is a | 1WBE is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] with DKA and GOL as [http://en.wikipedia.org/wiki/ligands ligands]. Structure known Active Site: AC1. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1WBE OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: lipid transport]] | [[Category: lipid transport]] | ||
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Revision as of 14:43, 5 November 2007
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X-RAY STRUCTURE OF BOVINE GLTP
OverviewOverview
Glycolipids participate in many important cellular processes and they are, bound and transferred with high specificity by glycolipid transfer protein, (GLTP). We have solved three different X-ray structures of bovine GLTP at, 1.4 angstroms, 1.6 angstroms and 1.8 angstroms resolution, all with a, bound fatty acid or glycolipid. The 1.4 angstroms structure resembles the, recently characterized apo-form of the human GLTP but the other two, structures represent an intermediate conformation of the apo-GLTPs and the, human lactosylceramide-bound GLTP structure. These novel structures give, insight into the mechanism of lipid binding and how GLTP may, conformationally adapt to different lipids. Furthermore, based on the, structural comparison of the GLTP structures and the three-dimensional, models of the related Podospora anserina HET-C2 and Arabidopsis thaliana, accelerated cell death protein, ACD11, we give structural explanations for, their specific lipid binding properties.
About this StructureAbout this Structure
1WBE is a Single protein structure of sequence from Bos taurus with DKA and GOL as ligands. Structure known Active Site: AC1. Full crystallographic information is available from OCA.
ReferenceReference
Structural evidence for adaptive ligand binding of glycolipid transfer protein., Airenne TT, Kidron H, Nymalm Y, Nylund M, West G, Mattjus P, Salminen TA, J Mol Biol. 2006 Jan 13;355(2):224-36. Epub 2005 Nov 8. PMID:16309699
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