Anti-LRPAP1 Antibody

Cat: 11100-RP02
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Anti-LRPAP1 Antibody (Rabbit Polyclonal antibody) General Information
Product name
Anti-LRPAP1 Antibody
Validated applications
Species reactivity
Reacts with: Human
Human LRPAP1
Recombinant Human LRPAP1 protein (Catalog#11100-H08H)
Produced in rabbits immunized with purified, recombinant Human LRPAP1 / A2MRAP (rh LRPAP1; Catalog#11100-H08H; NP_002328.1; Tyr 35-Leu 357). LRPAP1 specific IgG was purified by human LRPAP1 affinity chromatography.
Polyclonal Rabbit IgG
Protein A & Antigen Affinity
0.2 μm filtered solution in PBS
This antibody is shipped as liquid solution at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free. Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Anti-LRPAP1 Antibody (Rabbit Polyclonal antibody) Validated Applications
Application Dilution Notes
WB 1:500-1:1000  
ELISA 1:5000-1:10000  
IHC-P 1:2000-1:10000  
IP 0.2-1 μL/mg of lysate  

**********Please Note: Optimal concentrations/dilutions should be determined by the end user.**********

Anti-LRPAP1 Antibody (Rabbit Polyclonal antibody) Images
Human LRPAP1/A2MRAP Immunohistochemistry(IHC) 3927
Immunochemical staining of human LRPAP1 in human liver with rabbit polyclonal antibody at 1:5000 dilution, formalin-fixed paraffin embedded sections.
Human LRPAP1/A2MRAP Immunohistochemistry(IHC) 3928
Immunochemical staining of human LRPAP1 in human kidney with rabbit polyclonal antibody at 1:5000 dilution, formalin-fixed paraffin embedded sections.
Human LRPAP1/A2MRAP Immunohistochemistry(IHC) 3931
Immunochemical staining of human LRPAP1 in human brain with rabbit polyclonal antibody at 1:5000 dilution, formalin-fixed paraffin embedded sections.
Human LRPAP1/A2MRAP Immunoprecipitation(IP) 8053

LRPAP1 was immunoprecipitated using:

Lane A:0.5 mg 293T Whole Cell Lysate

Lane B:0.5 mg A549 Whole Cell Lysate

0.5 µL anti-LRPAP1 rabbit polyclonal antibody and 15 μl of 50 % Protein G agarose.

Primary antibody:

Anti-LRPAP1 rabbit polyclonal antibody,at 1:1000 dilution

Secondary antibody:

Dylight 800-labeled antibody to rabbit IgG (H+L), at 1:5000 dilution

Developed using the odssey technique.

Performed under reducing conditions.

Predicted band size: 41 kDa

Observed band size: 41 kDa

Human LRPAP1/A2MRAP Western blot (WB) 13343

Anti-LRPAP1 rabbit polyclonal antibody at 1:500 dilution

Lane A: U87-MG Whole Cell Lysate

Lane B: PC-3 Whole Cell Lysate

Lane C: 293T Whole Cell Lysate

Lane D: A549 Whole Cell Lysate

Lysates/proteins at 30 μg per lane.


Goat Anti-Rabbit IgG H&L (Dylight800) at 1/10000 dilution.

Developed using the Odyssey technique.

Performed under reducing conditions.

Predicted band size:41 kDa

Observed band size:41 kDa

Anti-LRPAP1 Antibody Alternative Names
Anti-A2MRAP Antibody;Anti-A2RAP Antibody;Anti-alpha-2-MRAP Antibody;Anti-HBP44 Antibody;Anti-MRAP Antibody;Anti-MYP23 Antibody;Anti-RAP Antibody
LRPAP1 Background Information

Receptor-associated protein (RAP) is a molecular chaperone for low density lipoprotein receptor-related protein (LRP), which plays a key role in cholesterol metabolism. The lipoprotein receptor-related protein (LRP) is an endocytic receptor for several ligands, such as alpha2-macroglobulin (alpha2 M) and apolipoprotein E. LRP is involved in the clearance of lipids from the bloodstream and is expressed in the atherosclerotic plaque. The LRP-associated protein (LRPAP in humans, RAP in mice) acts as a chaperone protein, stabilizing the nascent LRP peptide in the endoplasmic reticulum and Golgi complex. Alpha-2-macroglobulin receptor-associated protein, also known as low density lipoprotein receptor-related protein-associated protein 1, RAP and LRPAP1, is a 39 kDa protein and a member of the alpha-2-MRAP family. It is a receptor antagonist that interacts with several members of the low density lipoprotein (LDL) receptor gene family. Upon binding to these receptors, LRPAP1 inhibits all ligand interactions with the receptors. LRPAP1 is present on cell surface forming a complex with the alpha-2-macroglobulin receptor heavy and light chains. It binds with LRP1B and the binding is followed by internalization and degradation. LRPAP1 interacts with LRP1/alpha-2-macroglobulin receptor and LRP2 (previously called glycoprotein 330), and may be involved in the pathogenesis of membrane glomerular nephritis. LRPAP1 together with LRP2 forms the Heymann nephritis antigenic complex. LRP2 is expressed in epithelial cells of the thyroid, where it can serve as a receptor for the protein thyroglobulin. Intron 5 insertion/deletion polymorphism of RAP gene (LRPAP1) has been implicated in other diseases sharing etiology with gallstone disease (GSD). The LRPAP1 insertion/deletion polymorphism influences cholesterol homeostasis and may confer risk for gallstone disease and gallbladder carcinoma (GBC) incidence usually parallels with the prevalence of cholelithiosis. The genetic variations at the LRPAP1 locus may modulate Alzheimer disease (AD) phenotype beyond risk for disease. In addition, the variation at the LRPAP1 gene could contribute to the risk of developing an early episode of myocardial infarction (MI).

Full Name
low density lipoprotein receptor-related protein associated protein 1
  • Gonzlez P, et al. (2002) Variation in the lipoprotein receptor-related protein, alpha2-macroglobulin and lipoprotein receptor-associated protein genes in relation to plasma lipid levels and risk of early myocardial infarction. Coron Artery Dis. 13(5): 251-4.
  • Schutte DL, et al. (2003) A LRPAP1 intronic insertion/deletion polymorphism and phenotypic variability in Alzheimer disease. Res Theory Nurs Pract. 17(4): 301-19?
  • Pandey SN, et al. (2006) Lipoprotein receptor associated protein (LRPAP1) insertion/deletion polymorphism: association with gallbladder cancer susceptibility. Int J Gastrointest Cancer. 37(4): 124-8.
  • Dixit M, et al. (2006) Association of low density lipoprotein receptor related protein-associated protein (LRPAP1) gene insertion/deletion polymorphism with gallstone disease.J Gastroenterol Hepatol. 21(5): 847-9.
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