- Catalog number
- EK1543
- Size / count
- 96 Well With Removable Strips
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- The Low-Density Lipoprotein (LDL) Receptor is a mosaic protein of 839 amino acids (after removal of 21-amino acid signal peptide) that mediates the endocytosis of cholesterol-rich LDL. In humans, the LDL receptor protein is encoded by the LDLR gene. It belongs to the Low density lipoprotein receptor gene family. The low density lipoprotein receptor (LDLR) gene family consists of cell surface proteins involved in receptor-mediated endocytosis of specific ligands. Low density lipoprotein (LDL) is normally bound at the cell membrane and taken into the cell ending up in lysosomes where the protein is degraded and the cholesterol is made available for repression of microsomal enzyme 3-hydroxy-3-methylglutaryl coenzyme A (HMG CoA) reductase, the rate-limiting step in cholesterol synthesis. At the same time, a reciprocal stimulation of cholesterol ester synthesis takes place. Mutations in this gene cause the autosomal dominant disorder, familial hypercholesterolemia. Alternate splicing results in multiple transcript variants.
- Reproducibility
- Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Sample 1 138 141 137 131 136 3.63 2.6% Sample 2 599 522 564 529 553 30.71 5.5% Sample 3 1472 1333 1447 1397 1412 53.12 3.7% Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Sample 1 138 141 137 131 136 3.63 2.6% Sample 1 138 141 137 131 136 3.63 2.6% Sample 2 599 522 564 529 553 30.71 5.5% Sample 2 599 522 564 529 553 30.71 5.5% Sample 3 1472 1333 1447 1397 1412 53.12 3.7% Sample 3 1472 1333 1447 1397 1412 53.12 3.7%
- Synonyms
- Low-density lipoprotein receptor; LDL receptor; Ldlr
- Gene Name
- Ldlr
- Gene ID
- 16835
- UniProt
- P35951
- Reactivity
- Mouse
- Cross Reactivity
- There is no detectable cross-reactivity with other relevant proteins.
- Immunogen
- Expression system for standard: NS0; Immunogen sequence: A22-R790
- Applications
- ELISA
- Field of Research
- Cardiovascular, Lipid Metabolism, Lipids/Lipoproteins, Metabolism, Signal Transduction
- Standard
- 10 ng/Tube
- Sample Type
- Cell culture supernatants, serum, plasma (heparin) and urine.
- Detection Range
- 62.5 pg/mL - 4,000 pg/mL
- Precision
- Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 Mean (pg/ml) 138 599 1472 131 650 1349 Standard deviation 7.31 28.15 88.32 7.33 42.9 102.52 CV (%) 5.3% 4.7% 6% 5.6% 6.6% 7.6% Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 Mean (pg/ml) 138 599 1472 131 650 1349 Standard deviation 7.31 28.15 88.32 7.33 42.9 102.52 CV (%) 5.3% 4.7% 6% 5.6% 6.6% 7.6% Intra-Assay Precision Inter-Assay Precision Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 n 16 16 16 24 24 24 Mean (pg/ml) 138 599 1472 131 650 1349 Mean (pg/ml) 138 599 1472 131 650 1349 Standard deviation 7.31 28.15 88.32 7.33 42.9 102.52 Standard deviation 7.31 28.15 88.32 7.33 42.9 102.52 CV (%) 5.3% 4.7% 6% 5.6% 6.6% 7.6% CV (%) 5.3% 4.7% 6% 5.6% 6.6% 7.6%
- Sensitivity
- <12 pg/mL
- Function
- Binds 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.
- Components
- Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x) |100ul Avidin-Biotin-Peroxidase Complex (100x) |100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB) |10ml Stop Solution|10ml Wash Buffer (25x) |20ml Adhesive plate sealers|4
- Storage Conditions
- Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)
- Calculated Molecular Weight
- 94947 MW
- Specificity
- Natural and recombinant mouse LDLR
- Anticoagulant
- Heparin
- Gene Name Synonym
- Low-density lipoprotein receptor
- Subcellular Location
- Cell membrane; Single-pass type I membrane protein. Endomembrane system; Single-pass type I membrane protein. Membrane, clathrin-coated pit ; Single-pass type I membrane protein . Golgi apparatus . Early endosome . Late endosome . Cell surface . Lysosome . Found distributed from the plasma membrane to intracellular compartments. Localizes to the Golgi apparatus, early and late endosomes/lysosomes and cell surface in the presence of PCSK9 (By similarity) . .
- Protein Name
- Low-density lipoprotein receptor
- Sample Data
- Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 O.D. 0.031 0.107 0.174 0.323 0.584 1.099 1.729 2.371 Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 O.D. 0.031 0.107 0.174 0.323 0.584 1.099 1.729 2.371 Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 O.D. 0.031 0.107 0.174 0.323 0.584 1.099 1.729 2.371 O.D. 0.031 0.107 0.174 0.323 0.584 1.099 1.729 2.371
- Material Required But Not Provided
- Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer (optional) . Pipettes and pipette tips capable of precisely dispensing 0.5 μl through 1 ml volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500ml graduated cylinders. Test tubes for dilution.
