Qk005: Activin A Plus (human)


Engineered mature domain of human activin A expressed in E.coli, refolded and purified to homogeneity.   Optimised for extremely consistent high yield and the same bioactivity as wild-type protein. Particularly suitable for larger scale and bulk stem cell culture.  Protein is lyophilised (carrier protein-free).


Activin A is a member of the TGFβ superfamily of growth factors and cytokines used for maintenance of pluripotency in most human induced-pluripotent stem cell (iPSC) and embryonic stem cell (ESC) lines, and to induce stem cell differentiation into endodermal and other lineages.

Engineered mature domain of human activin A (Uniprot: P08476) expressed in E.coli, refolded and purified to homogeneity. This engineered form of Activin A incorporates an N-terminal truncation to remove a disulfide-linked extension. The resulting protein is optimised for extremely consistent high yield with no observed changes in bioactivity compared to the wild-type. This form is particularly suitable for larger scale culture processes, please contact us for bulk pricing. Protein is supplied lyophilized (carrier protein-free)

Please visit our Activin A Plus protein page for full details and batch specific data.

We take the quality of our products very seriously. All our proteins are produced in-house by our scientists and we understand the potential impact on your work if your growth factors and cytokines are not consistent and of the highest quality.  We provide comprehensive quality data for every batch.

Please contact us at orders@qkine.com for batch reservation, bulk purchasing arrangements or any other questions.

Additional information

Unit size

1000 µg, 500 µg, 100 µg, 50 µg, 3000 µg

Share your thoughts!

Let us know what you think...

What others are saying

There are no contributions yet.




Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

Continue as a Guest

Don't have an account? Sign Up