Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Immunogen affinity purified
Reconstitute at 0.2 mg/mL in sterile PBS.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for TGF-beta RIII Antibody
TGF-beta receptor type 3
TGF-beta receptor type III
Transforming growth factor beta receptor III
transforming growth factor beta receptor type 3
transforming growth factor, beta receptor III (betaglycan, 300kDa)
transforming growth factor, beta receptor III
Transforming growth factor beta receptor III (TGF-beta RIII; also betaglycan) is a ubiquitously expressed, 280 kDa type I transmembrane proteoglycan member of the TGF-beta superfamily of proteins (1). Mouse TGF-beta RIII is synthesized as an 850 amino acid (aa) precursor that consists of a 22 aa signal sequence, a 763 extracellular domain (ECD), a 23 aa transmembrane region, and a 42 aa cytoplasmic tail. The large ECD contains heparan sulfate and chondroitin sulfate glycosaminoglycans, five potential N-linked glycosylation sites, and a zona pellucida-like domain from residues 454‑731 (1, 2). The short cytoplasmic domain is rich in serine and threonine, but has no discernible signaling structure typical of receptor kinases (2). Proteolysis at one of two potential juxtamembrane cleavage sites (Lys743Lys and Leu750AlaValVal) allows cells to release TGF-beta RIII in a soluble form (1, 2). Mouse TGF-beta RIII shares 94%, 82%, 80%, and 67% aa sequence identity with rat, human, porcine, and chicken TGF-beta RIII, respectively (2). In all of these species, TGF beta RIII contains 17 cysteines that are 100% conserved (2). TGF-beta RIII binds with high affinity to TGF-beta 1, TGF-beta 2, and TGF-beta 3 isoforms (1). TGF-beta RIII functions by binding, and then "presenting" ligand to TGF-beta type II receptors (1, 3). It also functions to limit ligand availability to the receptor via proteolysis which releases the soluble form of TGF beta RIII along with any bound factors, making them inaccessible to cell-surface receptors (1, 3). TGF-beta RIII can therefore enhance or inhibit cell signaling. TGF-beta RIII has been shown to play an essential role in the formation of the atrioventricular cushion and coronary vessels during development of the heart (4‑6). TGF beta RIII also plays a role in many cancers. Increased expression of TGF beta RIII is found in higher grade lymphomas, and reduced expression of TGF beta RIII is found with advanced stage neuroblastomas and ovarian carcinomas (4, 7‑9). Low TGF-beta RIII expression also correlates with higher grade among a cohort of breast cancers (4, 10). Additionally, overexpression of TGF-beta RIII in MDA-231 human breast cancer cells and DU145 prostate cancer cells results in decreased tumor invasion in vitro and in vivo (4, 11, 12).
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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.
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PRODUCT AVAILABILITY: Update Regarding the Evolving COVID-19 Situation
Bio-Techne appreciates the critical role that you and our products and services play in research efforts to further scientific innovation and discovery. We are continually assessing our manufacturing and supplier capabilities during the COVID-19 situation and are implementing precautionary measures to ensure uninterrupted supply of products and services. Currently, and as we abide by local shelter in place orders across the world, we are fully operational and do not anticipate any material supply disruptions across our Bio-Techne brands and product lines. As the situation evolves, our goal is to utilize preventive measures to reduce the threat that COVID-19 poses to our ability to meet the needs of our customers globally.