Human ALK-2 / ACVR1 / ALK2 Protein (His tag) – PKSH030419

Recombinant Human ALK-2 / ACVR1 / ALK2 Protein (His tag)

ALK-2, also termed as ACVR1, was initially identified as an activin type I receptor because of its ability to bind activin in concert with ActRII or ActRIIB. ALK-2 is also identified as a BMP type I receptor. It has been demonstrated that ALK-2 forms complex with either the BMP-2/7-bound BMPR-II or ACVR2A /ACVR2B. ALK-1 and ALK-2 presenting in the yeast Saccharomyces cerevisiae are two haspin homologues. Both ALK-1 and ALK-2 exhibit a weak auto-kinase activity in vitro, and are phosphoproteins in vivo. ALK-1 and ALK-2 levels peak in mitosis and late-S/G2. Control of protein stability plays a major role in ALK-2 regulation. The half-life of ALK-2 is particularly short in G1. Overexpression of ALK-2, but not of ALK-1, causes a mitotic arrest, which is correlated to the kinase activity of the protein. This suggests a role for ALK-2 in the control of mitosis. Endoglin is phosphorylated on cytosolic domain threonine residues by the TGF-beta type I receptors ALK-2 and ALK-5 in prostate cancer cells. Endoglin did not inhibit cell migration in the presence of constitutively active ALK-2. Defects in ALK-2 are a cause of fibrodysplasia ossificans progressiva (FOP).

Synonym(s) : ACVR1 , ACTRI , ACVR1A , ACVRLK2 , ALK2 , FOP , SKR1 , TSRI

Species(s) : Human

Protein Expression Host : Baculovirus-Insect Cells

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.

Predicted N-terminal amino acid : Met 21

Molecular weight/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.

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.

Formulation : Supplied as sterile 20mM Tris, 500mM NaCl, pH 7.4, 10% glycerol

Purity : > 93 % as determined by SDS-PAGE

Endotoxin level : < 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°C

Shipping conditions : Kinases are highly recommended to be shipped at frozen temperature with blue ice or dry ice. Shipment made at ambient temperature may seriously affect the activity of the ordered products.

Reconstitution : Please refer to the printed manual for detailed information.

Manual & Datasheet