Thrombospondin-1 Antibody (301221) [Alexa Fluor® 532]

• Reactivity: Hu
• Applications: WB, IP, ELISA(Cap), ELISA(Det)
• Clone: 301221
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Alexa Fluor 532

Thrombospondin-1 Antibody (301221) [Alexa Fluor® 532] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human Thrombospondin-1
  Asn19-Pro1170
  Accession # CAA32889
• Specificity: Detects human Thrombospondin‑1 in ELISAs and Western blots. In sandwich immunoassays and Western blots, no cross‑reactivity with recombinant human (rh) Thrombospindin-2 or rhThrombospondin-4 is observed.
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • ELISA Capture (Matched Antibody Pair)
  • ELISA Detection (Matched Antibody Pair)
  • Immunoprecipitation
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Thrombospondin-1 Antibody (301221) [Alexa Fluor® 532]

• THBS
• THBS1
• THBS-1
• thrombospondin 1
• Thrombospondin1
• Thrombospondin-1
• thrombospondin-1p180
• TSP-1
• TSP1thrombospondin-1
• TSPTSP-1

Background

Thrombospondin-1 (TSP-1) is a 150‑180 kDa charter member of the thrombospondin family of extracellular matrix proteins. Human TSP‑1 is synthesized as an 1170 amino acid (aa) precursor that contains an 18 aa signal sequence and 1152 aa mature molecule. The mature molecule has been described as containing three distinct regions that create the shape of a dumbbell. There is an intital, 140 aa N-terminal laminin G-like globular region that binds heparin (aa 19‑258). This is followed by an extended, central collagen-binding region that contains one type C von Willebrand factor domain, plus three TSP type I and three TSP type II (or EGF-like) domains (aa 259‑712). The C‑terminus (aa 713‑1170) appears as a large globule with two halves; one calcium‑binding region (aa 713‑950) with seven Asp‑rich TSP type III domains, and one terminal region (aa 951‑1170) with TSP‑unique motifs (1). This C-terminal region is believed to mediate CD47 and cell binding (2‑5). The TSP type I repeats have multiple functions. They bind to type V collagen, laminin, fibronectin and CD36. They also contain a recognition site for C‑mannosylation on Trp. Finally, a type I KRFK motif induces the release of mature TGF-b from LAP. This is an effect not found in TSP-2. The function of the type II repeats in unclear. TSP‑1 is secreted as a disulfide-linked 450 kDa homotrimer. The cysteines responsible lie just N‑terminal to the first type I TSP repeat. Mature human TSP-1 is 61% aa identical to human TSP-2. It is also 95%, 97% and 95% aa identical to mouse, dog and rat TSP-1, respectively.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.