ALK-2 / ACVR1 / ALK2 (aa 1-124) Protein (His Tag)

Activin A receptor, type I Protein Datasheet

ALK-2 / ACVR1 / ALK2 Protein Product Information

• Synonym: ACVR1, ACTRI, ACVR1A, ACVRLK2, ALK2, FOP, SKR1, TSRI
• Protein Construction: A DNA sequence encoding the extracellular domain ( Met 1- Val 124) of human ALK2 (Q04771) (Met 1- Val 124）was fused with a polyhistidine tag at the C-terminus.
• Source: Human
• Expression Host: Baculovirus-Insect cells

ALK-2 / ACVR1 / ALK2 Protein QC Testing

• Purity: > 93 % as determined by SDS-PAGE.
• Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method
• Stability: Samples are stable for up to twelve months from date of receipt at -70℃
• Predicted N terminal: Met 21
• Molecular Mass: The secreted recombinant human ALK2 consists of 114 amino acids and has a calculated molecular mass of 12.8KDa. It migrates as an approximately 17 kDa band in SDS-PAGE under reducing conditions.
• Formulation: Lyophilized from 0.2μm filtered solution of 20mM Tris, 500mM NaCl, pH 7.4, 10% gly
  1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
  2. Please contact us for any concerns or special requirements.
• SDS-PAGE: ALK-2 / ACVR1 / ALK2 protein

ALK-2 / ACVR1 / ALK2 Protein Usage Guide

• Storage: Store it under sterile conditions at -70℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

ALK-2 / ACVR1 / ALK2 Protein Description

Cytokines and hormones belonging to the transforming growth factor beta (TGFβ) superfamily such as the activin, anti-müllerian hormone (AMH), bone morphogenetic proteins (BMPs), and Nodal, are involved in a variety of physiological processes including growth, cell differentiation, homeostasis, osteogenesis, and apoptosis. They initiate signaling through heteromeric complexes of a type I  and a type I I serine/threonine kinase receptor. The two type receptors are type I transmembrane proteins and are distinguished by the presence of a glycine/serine-rich juxta-membrane domain found in the type I receptors. Type II receptors are required for binding ligands and recruitment of type I receptors which then form stable complexes, and type I receptors are essential for signaling transduction. ALK2, also termed as ACVR1, ActRI, SKR1, was initially identified as an activin type I receptor because of its ability to bind activin in concert with ActRII or IIB. In addition, ALK2 is also identified as a BMP type I receptor. ACVR1 has been demonstrated to form complex with either the BMP-2/7-bound BMPR-II or ACVR2A/ACVR2B and transduce signals to downstream components R-SMADs. Recombinant soluble ALK2 does not bind activin. Mutations in this gene are associated with fibrodysplasia ossificans progressive.

References

1. Attisano L. et al., 1993, Cell. 75: 671-80.
2. Ten Dijke P. et al., 1994, Science. 264: 101-4.
3. Macias-Silva M. et al., 1998, J Biol Chem. 273: 25628-36.
4. Shore EM. et al., 2006, Nature Genetics. 38: 525-7.
5. Renlund N. et al., 2007, J Endocrinology. 195: 95-103.