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Open data
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Basic information
Entry | Database: PDB / ID: 1b68 | ||||||
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Title | APOLIPOPROTEIN E4 (APOE4), 22K FRAGMENT | ||||||
![]() | APOLIPOPROTEIN E | ||||||
![]() | LIPID TRANSPORT / HEPARIN-BINDING / PLASMA PROTEIN / HDL / VLDL | ||||||
Function / homology | ![]() chylomicron remnant / lipid transport involved in lipid storage / triglyceride-rich lipoprotein particle clearance / intermediate-density lipoprotein particle clearance / positive regulation of lipid transport across blood-brain barrier / positive regulation of heparan sulfate proteoglycan binding / regulation of cellular response to very-low-density lipoprotein particle stimulus / metal chelating activity / Transcriptional regulation by the AP-2 (TFAP2) family of transcription factors / lipoprotein particle ...chylomicron remnant / lipid transport involved in lipid storage / triglyceride-rich lipoprotein particle clearance / intermediate-density lipoprotein particle clearance / positive regulation of lipid transport across blood-brain barrier / positive regulation of heparan sulfate proteoglycan binding / regulation of cellular response to very-low-density lipoprotein particle stimulus / metal chelating activity / Transcriptional regulation by the AP-2 (TFAP2) family of transcription factors / lipoprotein particle / regulation of amyloid-beta clearance / discoidal high-density lipoprotein particle / intermediate-density lipoprotein particle / chylomicron remnant clearance / maintenance of location in cell / very-low-density lipoprotein particle clearance / very-low-density lipoprotein particle remodeling / Chylomicron clearance / negative regulation of triglyceride metabolic process / response to caloric restriction / acylglycerol homeostasis / NMDA glutamate receptor clustering / Chylomicron remodeling / phosphatidylcholine-sterol O-acyltransferase activator activity / lipid transporter activity / positive regulation of phospholipid efflux / Chylomicron assembly / positive regulation of low-density lipoprotein particle receptor catabolic process / positive regulation of cholesterol metabolic process / regulation of behavioral fear response / regulation of amyloid fibril formation / regulation of protein metabolic process / high-density lipoprotein particle clearance / multivesicular body, internal vesicle / lipoprotein catabolic process / melanosome organization / chylomicron / high-density lipoprotein particle remodeling / very-low-density lipoprotein particle receptor binding / phospholipid efflux / AMPA glutamate receptor clustering / positive regulation by host of viral process / very-low-density lipoprotein particle / reverse cholesterol transport / positive regulation of amyloid-beta clearance / cholesterol transfer activity / high-density lipoprotein particle assembly / low-density lipoprotein particle / positive regulation of CoA-transferase activity / lipoprotein biosynthetic process / protein import / negative regulation of blood coagulation / high-density lipoprotein particle / low-density lipoprotein particle remodeling / negative regulation of amyloid fibril formation / synaptic transmission, cholinergic / heparan sulfate proteoglycan binding / negative regulation of cholesterol biosynthetic process / amyloid precursor protein metabolic process / regulation of Cdc42 protein signal transduction / triglyceride homeostasis / regulation of amyloid precursor protein catabolic process / positive regulation of membrane protein ectodomain proteolysis / HDL remodeling / negative regulation of endothelial cell migration / Scavenging by Class A Receptors / negative regulation of protein metabolic process / artery morphogenesis / cholesterol efflux / regulation of axon extension / regulation of cholesterol metabolic process / positive regulation of amyloid fibril formation / low-density lipoprotein particle receptor binding / triglyceride metabolic process / positive regulation of dendritic spine development / regulation of innate immune response / virion assembly / locomotory exploration behavior / regulation of neuronal synaptic plasticity / negative regulation of amyloid-beta formation / negative regulation of endothelial cell proliferation / lipoprotein particle binding / positive regulation of endocytosis / antioxidant activity / response to dietary excess / negative regulation of blood vessel endothelial cell migration / negative regulation of long-term synaptic potentiation / positive regulation of dendritic spine maintenance / negative regulation of platelet activation / positive regulation of cholesterol efflux / intracellular transport / regulation of protein-containing complex assembly / negative regulation of protein secretion / fatty acid homeostasis / cholesterol catabolic process / long-term memory / long-chain fatty acid transport / positive regulation of lipid biosynthetic process / synaptic cleft / regulation of proteasomal protein catabolic process Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Rupp, B. / Peters-Libeu, C. | ||||||
![]() | ![]() Title: Interaction of the N-terminal domain of apolipoprotein E4 with heparin. Authors: Dong, J. / Peters-Libeu, C.A. / Weisgraber, K.H. / Segelke, B.W. / Rupp, B. / Capila, I. / Hernaiz, M.J. / LeBrun, L.A. / Linhardt, R.J. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 44.6 KB | Display | ![]() |
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PDB format | ![]() | 30.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 365.8 KB | Display | ![]() |
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Full document | ![]() | 368.8 KB | Display | |
Data in XML | ![]() | 3.9 KB | Display | |
Data in CIF | ![]() | 6.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1bz4S S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 22216.135 Da / Num. of mol.: 1 Fragment: 22K FRAGMENT, ISOFORM E4, RECEPTOR BINDING DOMAIN, RESIDUES 1-191 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.18 Å3/Da / Density % sol: 43.6 % Description: RIGID BODY REFINEMENT ONLY, THEN REBUILD, WARP MAPS USED | ||||||||||||||||||||
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6 Details: WELL : 28% PEG 400, 20MM NAOAC, PH 6.0, 0.1% BME PROTEIN SOLN: 40MM (NH4)H(CO3), 7MG/ML PROTEIN DROPS : WELL/PROTEIN 1/3, ROOM TEMPERATURE, pH 6.00, VAPOR DIFFUSION, HANGING DROP, temperature 298K | ||||||||||||||||||||
Crystal grow | *PLUS pH: 6.2 | ||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 125 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC / Detector: CCD / Date: Mar 1, 1998 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 1.84→25 Å / Num. obs: 16493 / % possible obs: 99.1 % / Observed criterion σ(I): 0 / Redundancy: 4.9 % / Biso Wilson estimate: 29.2 Å2 / Rmerge(I) obs: 0.037 / Rsym value: 0.037 / Net I/σ(I): 27.4 |
Reflection shell | Resolution: 1.84→1.98 Å / Redundancy: 3.1 % / Rmerge(I) obs: 0.199 / Mean I/σ(I) obs: 3.7 / Rsym value: 0.199 / % possible all: 98.7 |
Reflection shell | *PLUS % possible obs: 98.7 % |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1BZ4 Resolution: 2→8 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 10000000 / Data cutoff low absF: 0.001 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 2 / Details: BULK SOLVENT MODEL USED
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Displacement parameters | Biso mean: 38.7 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2→8 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2→2.12 Å / Rfactor Rfree error: 0.024 / Total num. of bins used: 6
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Xplor file |
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Software | *PLUS Name: ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | *PLUS Rfactor obs: 0.2 / Rfactor Rwork: 0.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Rfactor Rfree: 0.321 / Rfactor Rwork: 0.298 |