Recombinant human TGF-beta RII (241-R2/CF) inhibits recombinant human TGF-beta 1 activity in the HT-2 mouse T cell line. The ED50 for this effect is 1-3 µg/mL in the presence of 0.25 ng/mL of recombinant human ...read more
Recombinant Human TGF-beta RII Protein, CF Summary
Details of Functionality
Measured by its ability to inhibit TGF-beta 1 activity on HT‑2 mouse T cells. Tsang, M. et al. (1995) Cytokine 7:389. The ED50 for this effect is 1-3 µg/mL in the presence of 0.25 ng/mL of recombinant human TGF-beta 1.
Source
Mouse myeloma cell line, NS0-derived human TGF-beta RII protein Ile24-Asp159
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
15 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
Multiple bands between 20-35 kDa, reducing conditions
Publications
Read Publications using 241-R2/CF in the following applications:
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.
3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human TGF-beta RII Protein, CF
AAT3
EC 2.7.11
EC 2.7.11.30
FAA3
HNPCC6
LDS1B
LDS2B
MFS2
RIIC
TAAD2
tbetaR-II
TGF-beta receptor type II
TGF-beta receptor type IIB
TGF-beta receptor type-2
TGF-beta RII
TGF-beta type II receptor
TGFbetaRII
TGFbeta-RII
TGFBR2
TGF-bRII
TGFR-2
transforming growth factor beta receptor type IIC
transforming growth factor, beta receptor II (70/80kDa) isoform 1
transforming growth factor, beta receptor II (70/80kDa) isoform 2
transforming growth factor, beta receptor II (70/80kDa)
transforming growth factor, beta receptor II (70-80kD)
Transforming growth factor-beta receptor type II
Background
Most cell types express three sizes of receptors for TGF-beta . These are designated type I (53 kDa), type II (70-85 kDa), and type III (250-350 kDa). The type III receptor, a proteoglycan that exists in membrane-bound and soluble forms, binds TGF-beta 1, TGF-beta 2, and TGF-beta 3 but does not appear to be involved in signal transduction. The type II receptor is a membrane-bound serine/threonine kinase that binds TGF-beta 1 and TGF-beta 3 with high affinity and TGF-beta 2 with a much lower affinity. The type I receptor is also a membrane-bound serine/threonine kinase that apparently requires the presence of the type II receptor to bind TGF-beta . Current evidence suggests that signal transduction requires the cytoplasmic domains of both the type I and type II receptors.
The recombinant soluble TGF-beta type II receptor is capable of binding TGF-beta 1, TGF-beta 3, and TGF-beta 5 with sufficient affinity to act as an inhibitor of these isoforms at high concentrations. The soluble receptor also binds TGF-beta 2, but with an affinity at least two orders of magnitude lower. Binding of TGF-beta 1, TGF-beta 3, and TGF-beta 5 to the soluble TGF-beta type II receptor can also be demonstrated by using the soluble receptor as a capture agent on ELISA plates and this observation has been used as the basis for the development of immunoassays for these isoforms of TGF-beta .
Miyazono, K. et al. (1994) Adv. in Immunol. 55:181.
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