LRPAP1 Antibody, FITC conjugated

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Description

Definition and Structure of LRPAP1 Antibody, FITC Conjugated

LRPAP1 Antibody targets the LRPAP1 protein, a chaperone involved in LDL receptor-related protein (LRP1) trafficking and implicated in autoimmune diseases and cancers like mantle cell lymphoma (MCL) . FITC conjugation (fluorescein isothiocyanate) enables fluorescent detection of LRPAP1 in cellular assays.

Table 1: Key Applications of LRPAP1 Antibodies

ApplicationProtocol DetailsOutcome/Utility
ImmunohistochemistryDilution: 1:50–1:100 Detects LRPAP1 in tissue sections, aiding MCL diagnosis .
Viral PathogenesisCo-immunoprecipitation with IFNAR1 Identifies LRPAP1-IFNAR1 interaction, explaining viral immune evasion .
Autoantibody DetectionELISA with recombinant LRPAP1 Diagnoses LRPAP1 autoantibodies in 13% of MCL patients, correlating with prognosis .

Mechanistic Insights from Studies

  • Therapeutic Targeting:
    Bispecific constructs (e.g., anti-CD3/LRPAP1) and IgG1-format BAR bodies use LRPAP1 to redirect T/NK cells against MCL cells . FITC-labeled antibodies could track these constructs’ binding efficiency.

  • Viral Immune Evasion:
    LRPAP1 binds IFNAR1 (interferon receptor), promoting its degradation and enhancing viral replication (e.g., EV71, HCoV-OC43) . FITC-conjugated antibodies confirmed extracellular LRPAP1’s role in IFNAR1 downregulation .

  • Prognostic Value:
    LRPAP1 autoantibodies (IgG/IgM) in MCL patients correlate with superior survival (5-year OS: 93% vs. 68% in seronegative patients) .

Technical Considerations

  • Sensitivity: FITC conjugation requires optimization to avoid photobleaching during fluorescence assays .

  • Cross-Reactivity: Validated in human, mouse, and rat models, but species-specific validation is recommended .

  • Storage: Stable at -20°C; avoid repeated freeze-thaw cycles .

Future Directions

  • In Vivo Studies: Pharmacokinetic profiling of IgG1-format LRPAP1 antibodies .

  • Pan-Antiviral Strategies: Targeting LRPAP1 with α2-macroglobulin to block viral entry .

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
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Synonyms
39 kDa receptor-associated protein antibody; A2MRAP antibody; A2RAP antibody; Alpha 2 macroglobulin receptor associated protein antibody; Alpha 2 MRAP antibody; Alpha-2-macroglobulin receptor-associated protein antibody; Alpha-2-MRAP antibody; AMRP_HUMAN antibody; HBP44 antibody; Lipoprotein receptor associated protein antibody; Low density lipoprotein receptor related protein associated protein 1 antibody; Low density lipoprotein receptor-related protein-associated protein 1 antibody; Low density lipoprotein related protein associated protein 1 alpha 2 macroglobulin receptor associated protein antibody; Low density lipoprotein related protein associated protein 1 antibody; low density lipoprotein-related protein-associated protein 1 (alpha-2-macroglobulin receptor-associated protein 1) antibody; Lrpap1 antibody; MGC138272 antibody; MRAP antibody; MYP23 antibody; RAP antibody
Target Names
Uniprot No.

Target Background

Function
LRPAP1 Antibody, FITC conjugated, is a molecular chaperone that assists in the proper folding and trafficking of LDL receptor-related proteins. It plays a critical role in regulating the ligand binding activity of these proteins throughout the secretory pathway.
Gene References Into Functions
  1. The clinical and biometric characteristics we describe in this report are consistent with LRPAP1-related high myopia. These findings should prompt consideration of genetic testing for mutations in the LRPAP1 gene. PMID: 26271838
  2. Inhibition caused by reagents that block Rap activation can be reversed by pharmacologically mobilizing intracellular calcium. However, inhibition caused by acrosome reaction inhibitors that prevent Rab3 binding to GTP is not reversible. PMID: 25159528
  3. The LRPAP1 I allelic variant may be considered a potential candidate gene for Parkinson's disease, particularly in patients carrying the APOE epsilon4 allelic variant. PMID: 24504617
  4. RAP effectively inhibits light chain (LC) endocytosis by approximately 88% and alleviates LC-induced cytokine responses and epithelial-to-mesenchymal transformation in human proximal tubular cells. PMID: 23894629
  5. Mutations in the LRPAP1 gene are associated with severe myopia in humans. PMID: 23830514
  6. LRP1-C/T, A2M-Ile/Val, and APOE-epsilon 2/epsilon 3/epsilon 4 polymorphisms are associated with Alzheimer's disease. PMID: 20637261
  7. Research indicates that RAP is a novel Abeta-binding protein that facilitates cellular internalization of Abeta. PMID: 19826010
  8. Adenoviral-mediated expression of human receptor-associated protein RAP in a murine model of von Willebrand disease results in a sustained increase in FVIII over a period of 6 days. PMID: 11992244
  9. RAP is structurally organized into three domains located in the first third (1D), middle third (2D), and last third (3D) of the protein. All three domains exhibit stable tertiary structure when isolated and function as monomers. PMID: 14674767
  10. NMR structure of domain 1 of receptor-associated protein PMID: 15213425
  11. An insertion allele has been found to be associated with gallstone disease. PMID: 16704534
  12. RAP expression by thyrocytes is TSH-dependent, both in cultured thyroid cells and in vivo. PMID: 17123336
  13. Analysis of the relationship between ACE and LRPAP1 gene polymorphisms and age in an Italian population. PMID: 17536759
  14. The low-density lipoprotein receptor-related protein-associated protein (LRPAP1) gene IVS5 insertion/deletion polymorphism is not identified as a risk factor for gallstone disease in a Polish population. PMID: 17913606
  15. The low-density lipoprotein receptor-related protein associated protein (LRPAP1) insertion/deletion polymorphism is associated with gallstone disease and gallbladder carcinoma. PMID: 17987404
  16. LRP-1/LDLR-mediated uptake of A beta leads to degeneration of perivascular cells. PMID: 18055545
  17. Alterations in the RAP gene are not commonly observed as a cause of hypothyroidism. PMID: 18075286
  18. Our study suggests that LRPAP1-D and APOE E4 alleles significantly increase the susceptibility to degenerative dementias. PMID: 18721259

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Database Links

HGNC: 6701

OMIM: 104225

KEGG: hsa:4043

STRING: 9606.ENSP00000421922

UniGene: Hs.40966

Involvement In Disease
Myopia 23, autosomal recessive (MYP23)
Protein Families
Alpha-2-MRAP family
Subcellular Location
Rough endoplasmic reticulum lumen. Endoplasmic reticulum-Golgi intermediate compartment lumen. Golgi apparatus, cis-Golgi network. Golgi apparatus lumen. Endosome lumen. Cell surface.

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