Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-PLGF polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-PLGF polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the PLGF amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of PLGF can be calculated!!Background/Introduction: Placental growth factor (PGF) is a protein that in humans is encoded by the PGF gene, which maps to 14q24-q31. It is a member of the VEGF (vascular endothelial growth factor) sub-family-a key molecule in angiogenesis and vasculogenesis, in particular during embryogenesis. There are 3 isoforms of PGF, designated PGF1, PGF2, and PGF3. Only PGF2 is able to bind heparin. The main source of PGF during pregnancy is the placental trophoblast. PGF is also expressed in many other tissues, including the villous trophoblast.
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a 140 kDa protein that is stored in the alpha-granules of platelets and Weibel-Palade bodies of endothelial cells. This protein redistributes to the plasma membrane during platelet activation and degranulation and mediates the interaction of activated endothelial cells or platelets with leukocytes. The membrane protein is a calcium-dependent receptor that binds to sialylated forms of Lewis blood group carbohydrate antigens on neutrophils and monocytes. Alternative splice variants may occur but are not well documented. [provided by RefSeq, Jul 2008]
Uniprot Description
SELP: Ca(2+)-dependent receptor for myeloid cells that binds to carbohydrates on neutrophils and monocytes. Mediates the interaction of activated endothelial cells or platelets with leukocytes. The ligand recognized is sialyl-Lewis X. Mediates rapid rolling of leukocyte rolling over vascular surfaces during the initial steps in inflammation through interaction with PSGL1. Defects in SELP may be a cause of susceptibility to ischemic stroke (ISCHSTR); also known as cerebrovascular accident or cerebral infarction. A stroke is an acute neurologic event leading to death of neural tissue of the brain and resulting in loss of motor, sensory and/or cognitive function. Ischemic strokes, resulting from vascular occlusion, is considered to be a highly complex disease consisting of a group of heterogeneous disorders with multiple genetic and environmental risk factors. Belongs to the selectin/LECAM family.
Protein type: Membrane protein, integral; Cell adhesion
Chromosomal Location of Human Ortholog: 1q22-q25
Cellular Component: nucleoplasm; extracellular space; platelet alpha granule membrane; integral to plasma membrane; cytoplasm; plasma membrane; platelet dense granule membrane; external side of plasma membrane
Molecular Function: heparin binding; protein binding; lipopolysaccharide binding; glycoprotein binding; glycosphingolipid binding; calcium-dependent protein binding; sialic acid binding; fucose binding
Biological Process: platelet activation; positive regulation of leukocyte migration; response to lipopolysaccharide; defense response to Gram-negative bacterium; positive regulation of phosphoinositide 3-kinase cascade; heterophilic cell adhesion; leukocyte adhesion; platelet degranulation; regulation of integrin activation; inflammatory response; leukocyte tethering or rolling; cell adhesion; blood coagulation; leukocyte migration
Disease: Ige Responsiveness, Atopic
Research Articles on SELP
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Product Notes
The Mouse SELP selp (Catalog #AAA494814) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA494814 ELISA Kit recognizes Mouse SELP. It is sometimes possible for the material contained within the vial of "P-Selectin, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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