Abcam, ab267388, Anti-Thrombospondin 1 antibody [EPR22927-54]

Size: 100µL / 1mL
Anti-Thrombospondin 1 antibody [EPR22927-54] (ab267388) is a rabbit monoclonal antibody detecting Thrombospondin 1 in Western Blot, Flow Cytometry (Intra), Flow Cytometry, IP, IHC-P, ICC/IF . Suitable for Human, Mouse, Rat . - Biophysical QC for unrivalled batch-batch consistency
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:EPR22927-54,
Isotype:IgG,
Carrier free:No,
Reacts with:Rat, Mouse, Human,
Applications:IP, ICC/IF, Flow Cyt (Intra), IHC-P, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.

Product details:
What is this antibody validated in?
Anti-Thrombospondin 1 antibody [EPR22927-54] (ab267388) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Flow Cytometry (Intra), Flow Cytometry (Flow Cyt), Immunoprecipitation (IP), Immunohistochemistry (IHC-P), Immunocytochemistry/immunofluorescence (ICC/IF) in Human, Mouse, Rat samples.
What is the molecular weight of Thrombospondin 1?
Anti-Thrombospondin 1 [EPR22927-54] (ab267388) specifically detects a band for Thrombospondin 1 (UniProt: P35441) at a molecular weight of 129kDa.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.
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Other related products
We have a range of other formats of antibody clone [EPR22927-54] also available for your convenience: ab267388, Carrier free -
ab267397
Patented technology
Our RabMAb
technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to
RabMAb® patents
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Thrombospondin 1 also known as TSP1 is a multi-functional glycoprotein involved in cellular processes like adhesion migration and tumorigenesis. It has a molecular weight of approximately 450 kDa. TSP1 is produced by multiple cell types including endothelial cells and fibroblasts and it is widely expressed in the extracellular matrix of both normal and tumor tissues. As a member of the thrombospondin family it interacts with cell receptors like integrins and CD36 to mediate its diverse functions.
Biological function summary
TSP1 is significant in modulating angiogenesis immune response and apoptosis. It acts as an anti-angiogenic factor by inhibiting endothelial cell proliferation and migration. TSP1 is a part of a larger complex where it interacts with other matrix proteins and growth factors to fine-tune cellular behavior within tissues. Through its binding domains it inhibits matrix metalloproteinases helping regulate matrix composition and tissue remodeling.
Pathways
TSP1 influences both the TGF-beta and NF-kB signaling pathways. In the TGF-beta pathway TSP1 activates latent TGF-beta contributing to tissue repair and fibrosis processes. It works synergistically with proteins like SMADs in these pathways. In the NF-kB pathway TSP1 modulates immune responses and inflammatory processes. Its interaction with CD36 and integrins in these pathways underlines its versatile role in cellular signaling.
TSP1 has been investigated in cancer progression and cardiovascular diseases. In cancer TSP1's anti-angiogenic properties suppress tumor vascularization which can slow tumor growth. Aberrant TSP1 expression levels have also been linked to atherosclerosis development as it interacts with endothelial cells and inflammatory molecules like TNF-alpha. In both these contexts TSP1 engages with proteins such as integrins and CD36 to exert its influence on disease progression.