1lpe
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1lpe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lpe OCA], [http://www.ebi.ac.uk/pdbsum/1lpe PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1lpe RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
Human apolipoprotein E, a blood plasma protein, mediates the transport and uptake of cholesterol and lipid by way of its high affinity interaction with different cellular receptors, including the low-density lipoprotein (LDL) receptor. The three-dimensional structure of the LDL receptor-binding domain of apoE has been determined at 2.5 angstrom resolution by x-ray crystallography. The protein forms an unusually elongated (65 angstroms) four-helix bundle, with the helices apparently stabilized by a tightly packed hydrophobic core that includes leucine zipper-type interactions and by numerous salt bridges on the mostly charged surface. Basic amino acids important for LDL receptor binding are clustered into a surface patch on one long helix. This structure provides the basis for understanding the behavior of naturally occurring mutants that can lead to atherosclerosis. | Human apolipoprotein E, a blood plasma protein, mediates the transport and uptake of cholesterol and lipid by way of its high affinity interaction with different cellular receptors, including the low-density lipoprotein (LDL) receptor. The three-dimensional structure of the LDL receptor-binding domain of apoE has been determined at 2.5 angstrom resolution by x-ray crystallography. The protein forms an unusually elongated (65 angstroms) four-helix bundle, with the helices apparently stabilized by a tightly packed hydrophobic core that includes leucine zipper-type interactions and by numerous salt bridges on the mostly charged surface. Basic amino acids important for LDL receptor binding are clustered into a surface patch on one long helix. This structure provides the basis for understanding the behavior of naturally occurring mutants that can lead to atherosclerosis. | ||
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| - | ==Disease== | ||
| - | Known diseases associated with this structure: Alzheimer disease-2 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=107741 107741]], Hyperlipoproteinemia, type III OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=107741 107741]], Lipoprotein glomerulopathy OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=107741 107741]], Macular degeneration, age-related OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=107741 107741]], Myocardial infarction susceptibility OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=107741 107741]], Sea-blue histiocyte disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=107741 107741]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: lipoprotein]] | [[Category: lipoprotein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:05:39 2008'' |
Revision as of 19:05, 30 March 2008
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| , resolution 2.25Å | |||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
THREE-DIMENSIONAL STRUCTURE OF THE LDL RECEPTOR-BINDING DOMAIN OF HUMAN APOLIPOPROTEIN E
Overview
Human apolipoprotein E, a blood plasma protein, mediates the transport and uptake of cholesterol and lipid by way of its high affinity interaction with different cellular receptors, including the low-density lipoprotein (LDL) receptor. The three-dimensional structure of the LDL receptor-binding domain of apoE has been determined at 2.5 angstrom resolution by x-ray crystallography. The protein forms an unusually elongated (65 angstroms) four-helix bundle, with the helices apparently stabilized by a tightly packed hydrophobic core that includes leucine zipper-type interactions and by numerous salt bridges on the mostly charged surface. Basic amino acids important for LDL receptor binding are clustered into a surface patch on one long helix. This structure provides the basis for understanding the behavior of naturally occurring mutants that can lead to atherosclerosis.
About this Structure
1LPE is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Three-dimensional structure of the LDL receptor-binding domain of human apolipoprotein E., Wilson C, Wardell MR, Weisgraber KH, Mahley RW, Agard DA, Science. 1991 Jun 28;252(5014):1817-22. PMID:2063194
Page seeded by OCA on Sun Mar 30 22:05:39 2008
