Mouse VEGF‑B186 Antibody

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Product Details
Supplemental Products

Mouse VEGF‑B186 Antibody Summary

Species Reactivity
Detects mouse VEGF-B186 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross‑reactivity with recombinant human (rh) VEGF165, rhVEGF-B186, recombinant mouse (rm) VEGF-B167, rhVEGF-C, rmVEGF-D, rhCTGF, rhPlGF, or rhLDGF is observed.
Monoclonal Rat IgG2B Clone # 124112
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant mouse VEGF-B186
Accession # P49766.2
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
Recombinant Mouse VEGF-B186 (Catalog # 767-VE)

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.

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Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: VEGF-B

Vascular endothelial growth factor B (VEGF-B; also known as VFR) is a member of the VEGF-PDGF supergene family of growth factor molecules (1‑4). Five mouse members have been identified, including VEGF-A, -B, -C, -D, and PlGF(-2) (1, 5). VEGF family members are disulfide-linked homo- and heterodimeric proteins that are important regulators of vasculogenesis and lymphangiogenesis. Two isoforms of mouse VEGF-B are produced by alternative splicing (6, 7). The long form (VEGF186) is 207 amino acids (aa) in length, with a putative 21 aa signal sequence and a 186 aa (32 kDa) mature region. The short form (VEGF167) is 188 aa in length, with a 21 aa signal sequence and a 167 aa (21 kDa) mature segment. The two isoforms share the same N-terminal 94 aa residue containing the cysteine knot VEGF homology domain (6‑8). VEGF186 is O-glycosylated; VEGF167 is not. VEGF167 binds heparin; VEGF186 does not. Thus, VEGF186 is secreted and freely diffusible in tissues (7). However, the VEGF-B167 isoform is the predominant form in tissue (9). Mouse VEGF-B186 shares 93% and 87% aa identity with bovine and human VEGF‑B186, respectively. Mouse VEGF-B167 also shares 90% and 88% aa identity with bovine and human VEGF-B167, respectively. Unlike VEGF167, VEGF-B186 can undergo proteolytic processing to generate a partially processed 48 kDa heterodimer (16 kDa and 32 kDa) and a fully processed 32 kDa homodimer (two 16 kDa). Processing appears to occur at Arg 127 of the mature protein (10). VEGF-B can heterodimerize with VEGF (7). Both VEGF-B isoforms can bind to VEGF receptor 1 (VEGF R1), but not VEGF R2 or VEGF R3 (11). VEGF-B167 also binds neuropilin-1, but only the 127 aa processed form of VEGF-B186 binds neuropilin-1 (10). As a dimer, the full length VEGF-B186 does not interact with neuropilin-1, while any dimer that contains the processed VEGF-B127 subunit will interact with neuropilin-1 (10). The importance of differential neuropilin binding is unclear. VEGF-B deficient mice display an atrial conduction deficit (12). On endothelial cells, ligation of VEGF R1 by VEGF-B has been shown to regulate the expression and activity of urokinase type plasminogen activator and plasminogen activator inhibitor 1 (11).

  1. Li, X. and U. Eriksson (2001) Int. J. Biochem Cell Biol. 33:421.
  2. Olofsson, B. et al. (1999) Curr. Opin. Biotechnol. 10:528.
  3. Clauss, M. (2000) Semin. Thromb. Hemost. 26:561.
  4. Matsumoto, T. and L. Claesson-Welsh (2001) Sci STKE Dec. 11(112):RE21.
  5. DiPalma, T. et al. (1996) Mamm. Genome 7:6.
  6. Olofsson, B. et al. (1996) Proc. Natl. Acad. Sci. USA 93:2576.
  7. Olofsson, B. et al. (1996) J. Biol. Chem. 271:19310.
  8. Twonson, S. et al. (1996) Biochem. Biophys. Res. Commun. 220:922.
  9. Li, X. et al. (2001) Growth Factors 19:49.
  10. Makinen, T. et al. (1999) J. Biol. Chem. 274:21217.
  11. Olofsson, B. et al. (1998) Proc. Nat. Acad. Sci. USA 95:11709.
  12. Aase, K. et al. (2001) Circulation 104:358.
Long Name
Vascular Endothelial Growth Factor B
Entrez Gene IDs
7423 (Human); 22339 (Mouse)
Alternate Names
vascular endothelial growth factor B; VEGFB; VEGF-B; VEGF-related factor; VRFVEGFL

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