Recombinant Human LDL Receptor protein (Tagged) is a Human Fragment protein, in the 22 to 788 aa range, expressed in HEK 293, with >=90% purity and suitable for SDS-PAGE.
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Key facts
- Purity
- >=90% SDS-PAGE
- Expression system
- HEK 293 cells
- Tags
- DDDDK tag C-Terminus
- Applications
- SDS-PAGE
- Biologically active
- No
Reactivity data
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application SDS-PAGE | Reactivity Reacts | Dilution info - | Notes - |
Target data
Function
Binds low density lipoprotein /LDL, the major cholesterol-carrying lipoprotein of plasma, and transports it into cells by endocytosis. In order to be internalized, the receptor-ligand complexes must first cluster into clathrin-coated pits. Forms a ternary complex with PGRMC1 and TMEM97 receptors which increases LDLR-mediated LDL internalization (PubMed:30443021). (Microbial infection) Acts as a receptor for hepatitis C virus in hepatocytes, but not through a direct interaction with viral proteins. (Microbial infection) Acts as a receptor for Vesicular stomatitis virus. (Microbial infection) In case of HIV-1 infection, may function as a receptor for extracellular Tat in neurons, mediating its internalization in uninfected cells. (Microbial infection) Acts as a receptor for Crimean-Congo hemorrhagic fever virus (CCHFV). (Microbial infection) Acts as a receptor for many Alphavirus, including Getah virus (GETV), Ross river virus (RRV) and Semliki Forest virus.
Alternative names
Low-density lipoprotein receptor, LDL receptor, LDLR
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Recombinant Human LDL Receptor protein (Tagged) is a Human Fragment protein, in the 22 to 788 aa range, expressed in HEK 293, with >=90% purity and suitable for SDS-PAGE.
Key facts
- Purity
- >=90% SDS-PAGE
- Expression system
- HEK 293 cells
- Tags
- DDDDK tag C-Terminus
- Applications
- SDS-PAGE
- Biologically active
- No
- Accession
- P01130-1
- Animal free
- No
- Species
- Human
- Concentration
- Storage buffer
pH: 7.4
Constituents: PBS, 20% Glycerol (glycerin, glycerine), 0.64% Sodium chloride, 0.13% Sodium phosphate, 0.02% Potassium chloride
Sequence info
Amino acid sequence
- Accession
- P01130
- Protein length
- Fragment
- Predicted molecular weight
- 86 kDa
- Amino acids
- 22 to 788
- Nature
- Recombinant
- Tags
- DDDDK tag C-Terminus
Specifications
- Form
- Liquid
General info
- Function
Binds low density lipoprotein /LDL, the major cholesterol-carrying lipoprotein of plasma, and transports it into cells by endocytosis. In order to be internalized, the receptor-ligand complexes must first cluster into clathrin-coated pits. Forms a ternary complex with PGRMC1 and TMEM97 receptors which increases LDLR-mediated LDL internalization (PubMed:30443021).
- Sequence similarities
Belongs to the LDLR family.
- Post-translational modifications
N- and O-glycosylated.
- Subcellular localisation
- Early endosome, Late endosome, Lysosome
Storage
- Shipped at conditions
- Dry Ice
- Appropriate short-term storage conditions
- -80°C
- Appropriate long-term storage conditions
- -80°C
- Storage information
- Avoid freeze / thaw cycle
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
The LDL Receptor also called LDLR is a protein that plays an important role in the uptake and clearance of low-density lipoproteins (LDL) from the bloodstream. LDLR binds LDL particles facilitating their internalization through receptor-mediated endocytosis. This receptor is expressed mainly in the liver adrenal glands and other tissues involved in cholesterol metabolism. It has an approximate molecular weight of 160 kDa. Researchers often study LDLR using techniques like Western blotting to understand its presence and function.
- Biological function summary
The LDL receptor interacts with LDL particles to regulate cholesterol levels in the body. It is part of a cell surface complex that recognizes and binds to apolipoprotein B-100 or apolipoprotein E present on LDL. This interaction initiates internalization of LDL leading to its degradation in lysosomes where cholesterol can be released and used by the cell. Mutations in the gene encoding LDLR can lead to inefficient cholesterol uptake influencing various metabolic processes.
- Pathways
LDL receptor activities are integral to lipid metabolism and cholesterol homeostasis. Two important biological pathways that involve LDLR include the cholesterol biosynthesis pathway and the lipoprotein clearance pathway. Within these pathways LDLR collaborates closely with proteins like PCSK9 which modulates its expression and degradation and HMG-CoA reductase an important enzyme in cholesterol synthesis to balance cholesterol levels in the body.
- Associated diseases and disorders
Defects in the LDL receptor are strongly associated with familial hypercholesterolemia and atherosclerosis. These conditions arise from impaired clearance of LDL leading to elevated cholesterol levels which pose risks for cardiovascular diseases. LDLR dysfunctions are linked with the Protein PCSK9 whose gain-of-function mutations can exacerbate hypercholesterolemia by promoting degradation of LDLR while statins aim to increase LDLR expression to lower LDL cholesterol levels.
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1 product image
SDS-PAGE - Recombinant Human LDL Receptor protein (Tagged) (ab271587)
SDS-PAGE analysis of ab271587.
LDL Receptor is heavily glycosylated, resulting in higher molecular weight. The two bands shown correspond to differing states of glycosylation.
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