Anti-PSGL-1/CD162 Antibody, clone HECA-452

P-selectin glycoprotein ligand 1 (UniProt: Q14242; also known as PSGL-1 Selectin P ligand, CD162) is encoded by the SELPLG gene (Gene ID: 6404) in human. Leukocytes express L-selectin ligands that are critical for leukocyte-leukocyte interactions at sites of inflammation. PSGL-1 is a predominant leukocyte L-selectin ligand that displays appropriate sialyl Lewis x (sLex)-like carbohydrate determinants for L-selectin recognition. It is a single-pass, mucin-like type I membrane glycoprotein that is synthesized with a signal peptide (aa 1-17), which is subsequently cleaved off to produce a form that contains an extracellular domain (18-320), a transmembrane domain (321-341), and a cytoplasmic domain (342-412). The mature form is generated following the cleaved of the propeptide (aa 18-41) region. PSGL-1 is a SLe(x)-type proteoglycan, which through high affinity, calcium-dependent interactions with E-, P- and L-selectins mediates rapid rolling of leukocytes over vascular surfaces during the initial steps in inflammation. It is constitutively expressed on all human peripheral-blood T cells and is also expressed on skin-homing T cells. Clone HECA-452 can detect a human endothelial cell differentiation antigen (HECA) selectively expressed on high endothelium. In addition to reacting with high endothelium, it also shows some cross-reactivity with a set of monocytic cells. This clone is shown to block the majority of P-selectin binding to neutrophils. (Ref.: Tu, L., et al. (1999). J. Immunol. 163(9); 5070-5078; Fuhlbrigge, RC., et al. (1997). Nature. 389(6654); 978-981; Duivestijn, AM., et al. (1988). Am. J. Pathol. 130(1); 147-155).

Clone HECA-452 is a rat monoclonal antibody that detects PSGL-1/CD162. It targets an epitope within the extracellular domain.

Stromal preparation from human tonsil tissue.

Quality Control Testing

Evaluated by Flow Cytometry in Human peripheral blood mononuclear cells (PBMC).

Flow Cytometry Analysis (FC): 1.0 μg of this antibody stained one million Human peripheral blood mononuclear cells (PBMC).

Tested Applications

Immunohistochemistry Applications: A representative lot detected PSGL-1/CD162 in Immunohistochemistry application (Duijvestijn, A.M., et al. (1988). Am J Pathol. 130(1):147-55).

Flow Cytometry Analysis: A representative lot detected PSGL-1/CD162 in Flow Cytometry application (Picker, L.J., et al. (1991). Nature. 349(6312):796-9; Fuhlbrigge, R.C., et al. (1997). Nature. 389(6654):978-81).

Western Blotting Analysis: A representative lot detected PSGL-1/CD162 in Western Blotting application (Fuhlbrigge, R.C., et al. (1997). Nature. 389(6654):978-81).

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user.

Purified rat monoclonal antibody IgM in PBS without azide.

1.0 mg/mL. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Store at -10°C to -25°C. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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