Neuropilin-1 Antibody (446921) [Alexa Fluor® 488]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow
Clone
446921
Clonality
Monoclonal
Host
Mouse
Conjugate
Alexa Fluor 488
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

Neuropilin-1 Antibody (446921) [Alexa Fluor® 488] Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant human Neuropilin‑1
Phe22-Lys644
Accession # NP_001019799
Specificity
Detects human Neuropilin-1 in direct ELISAs.
Isotype
IgG2a
Clonality
Monoclonal
Host
Mouse
Gene
NRP1
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Applications/Dilutions

Dilutions
  • Flow Cytometry 0.25-1 ug/10^6 cells
Application Notes
Flow Cytometry: Please use 0.25-1 ug of conjugated antibody per 10e6 cells.

Packaging, Storage & Formulations

Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Buffer
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Preservative
0.09% Sodium Azide
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Neuropilin-1 Antibody (446921) [Alexa Fluor® 488]

  • BDCA4
  • BDCA-4
  • CD304 antigen
  • CD304
  • DKFZp686A03134
  • DKFZp781F1414
  • neuropilin 1
  • Neuropilin1
  • Neuropilin-1
  • NRP1
  • NRPNP1
  • transmembrane receptor
  • Vascular endothelial cell growth factor 165 receptor
  • VEGF165RCD304

Background

Neuropilin-1 (Npn-1, previously neuropilin; also CD304) is a 130‑140 kDa type I transmembrane (TM) glycoprotein that regulates axon guidance and angiogenesis (1‑4). The full-length 923 amino acid (aa) human Npn‑1 contains a 623 aa extracellular domain (ECD) that shows 92‑95% aa identity with mouse, rat, bovine and canine
Npn‑1 (3, 4). The ECD contains two N-terminal CUB domains (termed a1a2), two domains with homology to coagulation factors V and VIII (b1b2) and a MAM (meprin) domain (c). C-terminally divergent splice variants with 704, 644, 609, and 551 aa lack the MAM and TM domains and are demonstrated or presumed to be soluble antagonists (1, 5‑7). A 906 aa form lacks a TM segment, but secretion has not been found (8). The sema domains of Class III secreted semaphorins such as Sema3A bind Npn-1 a1a2 (9). Heparin, the heparin-binding forms of VEGF (VEGF165, VEGF-B and VEGF-E), PlGF (PlGF2), and the C-terminus of Sema3 bind the b1b2 region (9, 10). Npn-1 and Npn-2 share 48% aa identity within the ECD and can form homo- and hetero-oligomers via interaction of their MAM domains (1). Neuropilins show partially overlapping expression in neuronal and endothelial cells during development (1, 2). Both neuropilins act as co‑receptors with plexins, mainly plexin A3 and A4, to bind class III semaphorins that mediate axon repulsion (11). However, only Npn-1 binds Sema3A, and only Npn-2 binds Sema3F (1). Both are co-receptors with VEGF R2 (also called KDR or Flk-1) for VEGF165 binding (1). Sema3A signaling can be blocked by VEGF165, which has higher affinity for Npn-1 (12). Npn-1 is preferentially expressed in arteries during development or those undergoing remodeling (1, 2). Npn-1 is also expressed on dendritic cells and mediates DC-induced T cell proliferation (13).

  1. Bielenberg, D.R. et al. (2006) Exp. Cell Res. 312:584. 
  2. Gu, C. et al. (2003) Dev. Cell 5:45. 
  3. He, Z. and M. Tessier-Lavigne (1997) Cell 90:739.
  4. Soker, S. et al. (1998) Cell 92:735. 
  5. Gagnon, M.L. et al. (2000) Proc. Natl. Acad. Sci. USA 97:2573. 
  6. Cackowski, F.C. et al. (2004) Genomics 84:82. 
  7. Rossignol, M. et al. (2000) Genomics 70:211.
  8. Tao, Q. et al. (2003) Angiogenesis 6:39.
  9. Gu, C. et al. (2002) J. Biol. Chem. 277:18069.
  10. Mamluk, R. et al. (2002) J. Biol. Chem. 277:24818.
  11. Yaron, A. et al. (2005) Neuron 45:513.
  12. Narazaki, M. and G. Tosato (2006) Blood 107:3892.
  13. Tordjman, R. et al. (2002) Nat. Immunol. 3477.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Bioinformatics

Gene Symbol NRP1
Entrez
Uniprot