VEGF-B167

• Description:

  Vascular endothelial growth factor B (VEGF-B), also known as vascular endothelial growth factor-related factor (VRF), is a member of the VEGF family of growth factors that share structural and functional similarity. Five mammalian members, including VEGF-A, B, C, D and PlGF, have been identified. VEGF family members are disulfide-linked dimeric proteins that are important regulators of physiological and pathological vasculogenesis, angiogenesis and lymphangiogenesis. VEGF-B is expressed in most tissues, especially in heart, skeletal muscle and pancreas. In many tissues, VEGF-B is coexpressed and can heterodimerize with VEGF. By alternative splicing, two isoforms of mature VEGF-B containing 167 or 186 amino acid (aa) residues exist. The two VEGF-B isoforms have identical amino-terminal cysteine knot VEGF homology domains but the carboxyl end of VEGF-B167 differs from that of VEGF-B186 by the presence of a highly basic cysteine-rich heparin binding domain. Whereas VEGF-B186 is a secreted diffusible protein, VEGF-B167 is sequestered into the cell matrix after secretion. Both VEGF-B isoforms bind VEGF receptor 1 (VEGFR-1), but not VEGFR-2 or VEGFR-3. On endothelial cells, ligation of VEGFR-1 by VEGF-B has been shown to regulate the expression and activity of urokinase type plasminogen activator and plasminogen activator inhibitor 1. VEGF-B167 and a proteolytically processed form of VEGF-B186 (VEGF-B127) also bind neuropilin1 (NP1), a type I transmembrane receptor for semaphorins/collapsins, ligands involved in neuron guidance. Besides VEGF-B, NP1 has been shown to bind PlGF-2, VEGF165 and VEGFR-1. The many interactions of NP1 with VEGF ligands and receptor suggest that NP1 may function as a regulator of angiogenesis.

• Synonyms:

  Vascular endothelial growth factor B; VEGFB; VRF; VEGFL

• NCBI Gene ID:

  7423

• UniProt:

  P49765

• Accession Number:

  NP_003368.1

• Accession Number mRNA:

  NM_003377.4

• Reactivity:

  Anti-Human

• Cross Reactivity:

  Human

• Target Antigen:

  Recombinant human VEGF-B167

• Clone:

  Rabbit IgG

• Applications:

  WB

• Purification Method:

  Protein A purified

• Assay Protocol:

  Centrifuge vial prior to opening. Reconstitute in sterile water to a concentration of 0.1-1.0 mg/ml.

• Bioactivity:

  Western Blot: Use 2-5 µg/ml

• Form:

  Lyophilized

• Buffer:

  PBS

• Reconstitution:

  Water

• Storage Conditions:

  The lyophilized antibody is stable for at least 2 years at -20°C. After sterile reconstitution the antibody is stable at 2-8°C for up to 6 months. Frozen aliquots are stable for at least 6 months when stored at -20°C. Addition of a carrier protein or 50% glycerol is recommended for frozen aliquots.

• Host or Source:

  Rabbit