Human LDLR PE-conjugated Antibody

Catalog # Availability Size / Price Qty
Detection of LDL R in HepG2 Human Cell Line by Flow Cytometry.
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Product Details
Citations (3)
Supplemental Products

Human LDLR PE-conjugated Antibody Summary

Species Reactivity
Detects human LDL R in ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant mouse (rm) LDL R, recombinant human LRP-5, or rmLRP-6 is observed.
Monoclonal Mouse IgG1 Clone # 472413
Protein A or G purified from hybridoma culture supernatant
Chinese hamster ovary cell line CHO-derived recombinant human LDL R
Accession # P01130
Supplied in a saline solution containing BSA and Sodium Azide.
Phycoerythrin (Excitation= 488 nm, Emission= 565-605 nm)


Recommended Concentration
Flow Cytometry
10 µL/106 cells
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry Detection of LDL R antibody in HepG2 Human Cell Line antibody by Flow Cytometry. View Larger

Detection of LDL R in HepG2 Human Cell Line by Flow Cytometry. HepG2 human hepatocellular carcinoma cell line was stained with Mouse Anti-Human LDL R PE-conjugated Monoclonal Antibody (Catalog # FAB2148P, filled histogram) or isotype control antibody (Catalog # IC002P, open histogram). View our protocol for Staining Membrane-associated Proteins.

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Preparation and Storage

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: LDLR

The Low Density Lipoprotein Receptor (LDL R) is the founding member of the LDL R family of scavenger receptors (1, 2). This family contains transmembrane molecules that are characterized by the presence of EGF repeats, complement-like repeats, and YWTD motifs that form beta -propellers. Although members of the family were originally thought to be endocytic receptors, it is now clear that some members interact with adjacent cell-surface molecules, expanding their range of activities (2). Human LDL R is synthesized as an 860 amino acid (aa) precursor that contains a 21 aa signal sequence, a 767 aa extracellular region, a 22 aa transmembrane segment and a 50 aa cytoplasmic tail (3). The extracellular region is complex. It consists of seven N-terminal complement-like cysteine-rich repeats that bind ligand. Cysteine residues in this region participate in intrachain disulfide bonds. This region is followed by three EGF-like repeats with a beta -propeller YWTD containing motif. The EGF-like repeats are responsible for ligand bonding and dissociation. Finally, there is a 50 aa membrane proximal Ser/Thr-rich region that serves as a carbohydrate attachment point (1, 3, 4). There is extensive O-linked and modest N-linked glycosylation. Thus the receptor’s predicted molecular weight of 93 kDa is increased to a native molecular weight of 120-160 kDa (3, 4). Within the 50 aa cytoplasmic tail, there is an NPXY motif that links the receptor to clathrin pits (1). The extracellular region of human LDL R is 51% aa identical to the extracellular region of human VLDL R, and 79% aa identical to the extracellular region of mouse LDL R. LDL R is constitutively expressed and binds ApoB of LDL and ApoE of VLDL (5). It is responsible for clearing 70% of plasma LDL in liver (5). Mutations in the LDL R gene cause the autosomal dominant disorder, familial hypercholesterolemia (6).

  1. Strickland, D.K. et al. (2002) Trends Endocrinol. Metab. 13:66.
  2. Nykjaer, A. and T.E. Willnow (2002) Trends Cell Biol. 12:273.
  3. Yamamoto, T. et al. (1984) Cell 39:27.
  4. Davis, C.G. et al. (1986) J. Biol. Chem. 261:2828.
  5. Defesche, J.C. (2004) Semin. Vasc. Med. 4:5.
  6. Varret, M. et al. (2008) Clin Genet. 73:1.
Long Name
Low Density Lipoprotein Receptor
Entrez Gene IDs
3949 (Human); 16835 (Mouse); 300438 (Rat); 396801 (Porcine); 102127361 (Cynomolgus Monkey)
Alternate Names
FH; FHC; LDL R; LDL receptor; LDLCQ2; LDLR; low density lipoprotein receptor; low-density lipoprotein receptor class A domain-containing protein 3; low-density lipoprotein receptor

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Citations for Human LDLR PE-conjugated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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  1. Alirocumab, a Therapeutic Human Antibody to PCSK9, Does Not Affect CD81 Levels or Hepatitis C Virus Entry and Replication into Hepatocytes
    PLoS ONE, 2016;11(4):e0154498.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Modulation of PICALM Levels Perturbs Cellular Cholesterol Homeostasis.
    Authors: Mercer J, Argus J, Crabtree D, Keenan M, Wilks M, Chi J, Bensinger S, Lavau C, Wechsler D
    PLoS ONE, 2015;10(6):e0129776.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  3. Plasma Membrane Tetraspanin CD81 Complexes with Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) and Low Density Lipoprotein Receptor (LDLR), and Its Levels Are Reduced by PCSK9.
    Authors: Le Q, Blanchet M, Seidah N, Labonte P
    J Biol Chem, 2015;290(38):23385-400.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry


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