Human Activin RIIA Antibody
Human Activin RIIA Antibody Summary
Ala20-Pro134
Accession # P27037
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
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Detection of Human Activin RIIA by Western Blot. Western blot shows lysates of human testis tissue. PVDF Membrane was probed with 1 µg/mL of Mouse Anti-Human Activin RIIA Monoclonal Antibody (Catalog # MAB340) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Activin RIIA at approximately 65 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Reconstitution Calculator
Preparation and Storage
- 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.
Background: Activin RIIA
Activin isoforms and other members of the TGF-beta superfamily exert their biological effects by binding to heteromeric complexes of a type I and a type II serine‑threonine kinase receptor, both of which are essential for signal transduction. To date, seven type I and five type II receptors, including the two type I and the two type II activin receptors, designated ActR-I(A), ActR-IB, ActR-II(A) and ActR-IIB, have been cloned from mammals. Through alternative mRNA splicing, multiple ActR-IIB isoforms can also be generated, adding to the complexity of the activin receptor system. Different activin isoforms bind with different high-affinities to the various type II isoforms. Type I activin receptors do not bind directly to activin, but will associate with the type II receptor-activin complex and initiate signal transduction. Besides the activin isoforms, ActR-II will also bind inhibin, BMP-2 and BMP-7 with lower affinities. ActR-I can also bind and form signaling complexes with the BMP-2/7-bound BMPR-II. Activin type II receptors are highly conserved. Human, mouse and rat type II activin receptors share greater than 98% amino acid sequence homology. Recombinant soluble activin type II receptors bind activin with high affinity, and are potent activin antagonists.
- Attisano, L. et al. (1996) Mol. and Cell. Biol. 16:1066.
- Woodruff, T.K. (1998) Biochem. Pharmacology, 55:953.
Product Datasheets
Citation for Human Activin RIIA Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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A new model for growth factor activation: type II receptors compete with the prodomain for BMP-7.
Authors: Sengle G, Ono RN, Lyons KM, Bachinger HP, Sakai LY
J. Mol. Biol., 2008-07-02;381(4):1025-39.
Species: Human
Sample Types: Recombinant Protein
Applications: ELISA Development
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