Thrombospondin 1 (TSP-1) is a glycoprotein that is released from platelet alpha-granules in response to thrombin stimulation and is also a transient component of the extracellular matrix in developing and repairing tissues. TSP-1 is a subunit of a disulfide-linked homotrimeric protein. TSP-1 is an adhesive glycoprotein that mediates cell-to-cell and cell-to-matrix interactions. TSP-1 can bind to fibrinogen, fibronectin, laminin, type V collagen and integrins alpha-V/beta-1. This protein has been shown to play roles in platelet aggregation, angiogenesis, and tumorigenesis. Medical interest in thrombospondin-1 focuses on its roles in haemostasis and its effects on angiogenesis.

The antibody is stable for at least 1 year from the date of receipt when stored at -20°C to -70°C. Reconstituted antibody can also be aliquotted and stored at 4°C for 1 month or at -20°C to -70°C in a manual defrost freezer for many months without detectable loss activity. Please avoid freeze-thaw cycles.

This antibody recognizes human TSP-1. Cross reactivity with mouse and rat TSP-1 was detected.