Detects human PlGF (but not VEGF) in direct ELISAs and Western blots. This antibody will also recognize the heterodimer of VEGF and PlGF. In direct ELISAs, approximately 5% cross-reactivity with recombinant mouse PlGF-2 is observed.
Polyclonal Goat IgG
E. coli-derived recombinant human PlGF Ala21-Arg149 Accession # CAA38698
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Detection of Human PlGF by Western Blot.
Western blot shows lysates of CHO Chinese hamster ovary cell line either mock transfected or transfected with full length human PlGF. PVDF membrane was probed with 2 µg/mL of Goat Anti-Human PlGF Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-264-PB) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for PlGF at approximately 22 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
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.
Placenta Growth Factor (PlGF) is a member of the Vascular Endothelial Growth Factor (VEGF) family of growth factors. PlGF and VEGF share primary structural as well as limited amino acid sequence homology with the A and B chains of PDGF. All eight cysteine residues involved in intra- and inter-chain disulfides are conserved among these growth factors. In their PDGF-like regions, VEGF and PlGF also share approximately 53% amino acid sequence similarity. The gene for PlGF has been mapped to chromosome 14. As a result of alternative splicing, at least two PlGF mRNAs encoding monomeric PlGF precursors containing 149 and 170 amino acid residues have been described. The expression of PlGF is not widespread, but has been detected in human umbilical vein endothelial cells, placenta, choriocarcinoma cell lines, and in renal cell carcinoma associated with angiogenesis. The PlGF proteins bind with high-affinity to Flt-1, but not to Flk-1/KDR.
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