Reactivity | HuSpecies Glossary |
Applications | Bioactivity |
Format | Carrier-Free |
Details of Functionality | Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells. P-Selectin/Fc Chimera, immobilized at 10 µg/mL, will induce greater than 50% adhesion on U937 cells (100 µL/well at 1 x 106 cells/mL). Optimal dilutions should be determined be each laboratory for each application. |
||||||
Source | Mouse myeloma cell line, NS0-derived human P-Selectin/CD62P protein
|
||||||
Accession # | |||||||
N-terminal Sequence | Trp42 |
||||||
Structure / Form | Disulfide-linked homodimer |
||||||
Protein/Peptide Type | Recombinant Proteins |
||||||
Gene | SELP |
||||||
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
||||||
Endotoxin Note | <0.01 EU per 1 μg of the protein by the LAL method. |
Dilutions |
|
|
Theoretical MW | 106 kDa (monomer). Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
|
SDS-PAGE | 146-160 kDa, reducing conditions |
|
Publications |
|
Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Buffer | Lyophilized from a 0.2 μm filtered solution in PBS. |
Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Reconstitution Instructions | Reconstitute at 100 μg/mL in sterile PBS. |
Human P-Selectin (GMP-140, LECAM-3, PADGEM, CD62P), a member of the Selectin family, is a cell surface glycoprotein expressed by activated platelets and endothelial cells. P-Selectin is translocated to the cell surface within minutes, from alpha granules of platelets or Weibel-Palade bodies of endothelial cells, following stimulation with thrombin, histamine, PMA or peroxides. P-Selectin binds to a 106 kDa protein present on myeloid cells, neutrophils, monocytes and lymphocytes, termed PSGL-1 (P-Selectin glycoprotein ligand-1).
P-Selectin plays a role in the adhesion of leukocytes and neutrophils to the endothelium. Acting in cooperation with L-Selectin, P-Selectin mediates the initial interaction of circulating leukocytes with endothelial cells that produces a characteristic ‘rolling’ of the leukocytes on the endothelium. This initial interaction is followed by a stronger interaction involving E-Selectin, and later ICAM-1 and VCAM-1, that leads eventually to extravasation of the white blood cell through the blood vessel wall into the extracellular matrix tissue.
Human P-Selectin cDNA encodes an 830 amino acid (aa) residue type I transmembrane protein with a 41 aa signal peptide, a 730 aa extracellular domain, a transmembrane domain and a short (35 aa) cytoplasmic domain. The extracellular domain has an NH2-terminal C-type lectin domain and an EGF-like domain followed by a series of complement factor A repeat homology domains. The extracellular domains of human and mouse P-Selectin share approximately 73% sequence homology.
The concentration calculator allows you to quickly calculate the volume, mass or concentration of your vial. Simply enter your mass, volume, or concentration values for your reagent and the calculator will determine the rest.