hh Human Activin RIA/ALK-2 Antibody MAB637-100: R&D Systems

Human Activin RIA/ALK-2 Antibody

(2 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Activin RIA/ALK‑2 in direct ELISAs and Western blots.
  • Source
    Monoclonal Mouse IgG1 Clone # 71412
  • Purification
    Protein A or G purified from ascites
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human Activin RIA/ALK‑2
    Asp23-Val124
    Accession # Q04771
  • Formulation
    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.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    Recombinant Human Activin RIA/ALK-2 Fc Chimera (Catalog # 637-AR)
    under non-reducing conditions only
  • Immunocytochemistry
    8-25 µg/mL
    See below
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.
Data Examples
Immunocytochemistry
Activin RIA/ALK‑2 in HUVEC Human Cells. Activin RIA/ALK‑2 was detected in immersion fixed HUVEC human umbilical vein endothelial cells using Mouse Anti-Human Activin RIA/ALK‑2 Monoclonal Antibody (Catalog # MAB637) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (orange; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    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.
Background: Activin RIA/ALK-2

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 I receptors are highly conserved. Human, mouse and bovine type IA activin receptors share greater than 98% amino acid sequence homology. Recombinant soluble activin type I receptor does not bind activin.

  • References:
    1. Attisano, L. et al. (1996) Mol. and Cell. Biol. 16:1066.
    2. Woodruff, T.K. (1998) Biochem. Pharmacology 55:953.
  • Long Name:
    Activin Receptor IA
  • Entrez Gene IDs:
    90 (Human)
  • Alternate Names:
    activin A receptor, type I; Activin RIA; ActivinRIA; ACTRI; ACVR1; ACVR1A; ACVRLK2; ALK2; ALK-2; FOP; SKR1; TSRI
Related Research Areas
Citations:

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.

2 Citations: Showing 1 - 2
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Species
Applications
Sample Type
  1. Bone morphogenetic proteins inhibit CD40L/IL-21-induced Ig production in human B cells: differential effects of BMP-6 and BMP-7.
    Authors: Huse K, Bakkebo M, Oksvold MP, Forfang L, Hilden VI, Stokke T, Smeland EB, Myklebust JH
    Eur. J. Immunol., 2011;41(11):3135-45.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
  2. Fibroblasts derive from hepatocytes in liver fibrosis via epithelial to mesenchymal transition.
    Authors: Zeisberg M, Yang C, Martino M, Duncan MB, Rieder F, Tanjore H, Kalluri R
    J. Biol. Chem., 2007;282(32):23337-47.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: IHC Paraffin-embedded
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Mouse IgG1 Isotype Control

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Mouse IgG HRP-conjugated Antibody

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Mouse F(ab)2 IgG (H+L) APC-conjugated Antibody

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Donkey Anti-Mouse IgG NorthernLights™ NL493-conjugated Antibody

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Mouse IgG Antibody

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Goat Anti-Mouse IgG Biotinylated Antibody

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Mouse F(ab)2 IgG (H+L) Fluorescein-conjugated Antibody

Flow F0103B 5  
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Mouse/Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC002  
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Mouse IgG VisUCyte HRP Polymer Antibody

IHC VC001  
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Goat Anti-Mouse IgG Fc Affinity Purified Polyclonal Ab

G-202-C 2
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Mouse F(ab)2 IgG (H+L) PerCP-conjugated Antibody

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