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Recombinant Human/Mouse/Rat Activin A protein(His Tag)

Uniprot : P08476
  • Cat.No.:PKSH034165

  • Expression host: E.coli

To Purchase PKSH034165

Size:
  • 20μg
  • 100μg
Price: $249
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Description

Synonyms Inhibin beta A chain;INHBA;Activin A
Species Human/Mouse/Rat
Expression_host E.coli
Sequence Gly 311-Ser 426
Accession P08476
Mol_Mass 13.1 kDa
AP_Mol_Mass 15 kDa
Tag None
Bio_Activity Measure by its ability to inhibit the proliferation of mouse MPC-11 cells. The ED50 for this effect is <10 ng/mL. The specific activity of recombinant human Activin A is approximately >1.0 x 103 IU/mg.

Properties

Purity > 95 % as determined by reducing SDS-PAGE.
Endotoxin level < 0.1 EU per μg of the protein as determined by the LAL method.
Storage Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping This product is provided as lyophilized powder which is shipped with ice packs.
Formulation Lyophilized from sterile PBS, pH 7.4.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Reconstitution Please refer to the printed manual for detailed information.

Background

Activin and inhibin are two closely related protein complexes that have almost directly opposite biological effects. Activins, members of the TGF-beta superfamily, are disulfide-linked dimeric proteins originally purified from gonadal fluids as proteins that stimulated pituitary follicle stimulating hormone (FSH) release. Inhibins/activins are involved in regulating a number of diverse functions such as hypothalamic and pituitary hormone secretion, gonadal hormone secretion, germ cell development and maturation, erythroid differentiation, insulin secretion, nerve cell survival, embryonic axial development or bone growth, depending on their subunit composition. Activins are homodimers or heterodimers of the various beta subunit isoforms, while inhibins are heterodimers of a unique alpha subunit and one of the various beta subunits.

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