Activin A Recombinant Protein Cat. No.: 96-912

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psi-iconSpecifications
SPECIES:Human
SOURCE SPECIES:HEK293 cells
SEQUENCE:Ser 21 - Ser 426
FUSION TAG:His Tag
TESTED APPLICATIONS:ELISA, WB
APPLICATIONS:This recombinant protein can be used for E, WB. For research use only.
BIOLOGICAL ACTIVITY: Measured by its binding ability in a functional ELISA. Immobilized Human Activin A, His Tag at 10 ug/mL (100 uL/well) can bind Human ACVR2A, Fc Tag with a linear range of 0.625-20 ug/mL (QC tested).
psi-iconProperties
PURITY:>90% as determined by SDS-PAGE.

Endotoxin level is less than 1.0 EU per ug by the LAL method.
PREDICTED MOLECULAR WEIGHT:13.0 kDa (mature) and 32.0 kDa (pro)
PHYSICAL STATE:Lyophilized
BUFFER:PBS, pH7.4
STORAGE CONDITIONS:Lyophilized Protein should be stored at -20˚C or lower for long term storage. Upon reconstitution, working aliquots should be stored at -20˚C or -70˚C. Avoid repeated freeze-thaw cycles.
psi-iconAdditional Info
ALTERNATE NAMES:Activin A,INHBA
ACCESSION NO.:AAH07858.1
OFFICIAL SYMBOL:Activin A
GENE ID:3624
psi-iconBackground and References
BACKGROUND:Activin and inhibin are two closely related protein complexes that have almost directly opposite biological effects. Activin enhances FSH biosynthesis and secretion, and participates in the regulation of the menstrual cycle. Many other functions have been found to be exerted by activin, including roles in cell proliferation, differentiation, apoptosis, metabolism, homeostasis, immune response, wound repair, and endocrine function. Conversely inhibin down regulates FSH synthesis and inhibits FSH secretion. Activins are nonglycosylated homodimers or heterodimers of various beta subunits (betaA, betaB, betaC, and betaE in mammals), while Inhibins are heterodimers of a unique alpha subunit and one of the beta subunits. Activin A is a widely expressed homodimer of two betaA chains. The betaA subunit can also heterodimerize with a betaB or betaC subunit to form Activin AB and Activin AC, respectively. The 14 kDa mature human betaA chain shares 100% amino acid sequence identity with bovine, feline, mouse, porcine, and rat betaA. Activin is produced in the gonads, pituitary gland, placenta, and other organs. The bioactivity of Activin A is regulated by a variety of mechanisms. In the ovarian follicle, activin increases FSH binding and FSH-induced aromatization; Activin is strongly expressed in wounded skin, and overexpression of activin in epidermis of transgenic mice improves wound healing and enhances scar formation; Activin also regulates the morphogenesis of branching organs such as the prostate, lung, and especially kidney. Activin A increased the expression level of type-I collagen suggesting that activin A acts as a potent activator of fibroblasts; Lack of activin during development results in neural developmental defects.
REFERENCES:1) Chen YG., et al., 2006, Exp. Biol. Med. (Maywood) 231 (5): 534–44.
2) Sulyok S, et al., 2004, Mol. Cell. Endocrinol. 225 (1–2): 127–32.
3) van Zonneveld P, et al., 2003, Hum Reprod 18 (3): 495–501.
4) Harrison, C.A. et al., 2005, Trends Endocrinol. Metab. 16:73.

FOR RESEARCH USE ONLY.

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