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Future Fields

Recombinant Human Prolactin, Tag-Free

Regular price $245.05 USD
Regular price Sale price $245.05 USD
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Powered by people, fly by design. Future Fields’ Recombinant Human Prolactin (Tag-Free) is ready to support your life-changing research in lactation, cultivated milk products, immune cells, mammary epithelial cells, and beyond.

Key features of Future Fields Recombinant Human Prolactin (Tag-Free) include:

  • Activity: Confirmed functionality using cell proliferation assays
  • Uniqueness: Confirmed to be N-glycosylated
  • Safety: Confirmed to be negative for mycoplasma and below threshold for endotoxin from Lot-to-Lot – suited for cell culture and preclinical applications
  • Price: Product price that is one of the lowest on the market, without compromising quality

Future Fields Recombinant Human Prolactin (Tag-Free) product consists of Prolactin protein with a short, eight amino acid overhang post-cleavage. Full sequence available upon request.

Comes as lyophilized powder. For research use only.


Mammotropin, Luteotropic hormone, Luteotropin, PRL


Human Prolactin, also known by its gene name PRL, is a hormone produced by the pituitary gland. It is primarily responsible for promoting lactation in the mammary glands, but it also has pleiotropic effects in both males and females. Prolactin typically exists in two forms: a glycosylated and a non-glycosylated version. Each prolactin molecule is believed to bind with two PRL-receptor molecules. In addition to its role in lactation, peripheral prolactin production is associated with breast and prostate cancer development, regulation of reproductive function, and immune system control. Recent research has suggested that PRL has cytoprotective effects on pancreatic islet cells and liver tissue, which could be crucial for the success of transplantation in clinical settings.

Sequence (monomer):

Future Fields Recombinant Human Prolactin (Tag-Free) sequence diagram

*There is a short 8 amino acid overhang post-cleavage. Full sequence available upon request.

Total - 235 aa; theoretical pI 6.14. The protein has a calculated MW of 26 kDa.


>85% pure, Verified by SDS PAGE. Identity verified by western blotting (anti-PRL antibody) and mass spec. Data available upon request.


Homo sapiens


Drosophila melanogaster (Why flies?)

Product Documents

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Frequently Asked Questions

Are there any cross-species activity with this growth factor?
Yes, even though Human Prolactin shares approximately 60% to 65% similarity with rat and mouse prolactin, it can still trigger prolactin receptors from other species.

Why can’t I see a pellet in the vial?
Lyophilized powder may not be visible for many reasons including, but not limited to, dislodged powder being stuck on the cap or lack of carrier proteins that make the product difficult to see. Please tap or centrifuge the vial to bring all the material down to the bottom and reconstitute the product as outlined above.

Are there any stability concerns with freeze thawing?
Repeated freeze thawing is not recommended, as this may damage the protein products resulting in reduced functionality. After reconstitution, please aliquot into suitable sizes for one time use and freeze.

Can this product be used to culture cells other than human species?
Yes! We have seen this product successfully in a variety of cell cultures across land-dwelling and aquatic species.

Can I add BSA as a carrier?

Yes. Adding a carrier protein like BSA (0.1%) enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration.

Is this protein bioactive?

Yes, this protein was tested for activity on proliferation of NB2-11 cells.

Are volume discounts or recurring order discounts available for this product?
Yes. Please reach out to to discuss your needs.


1% of your purchase proceeds will go towards environmental initiatives.

Scoring 86/100, we achieved the highest level of My Green Lab certification (Green).

Reduce the environmental impact of your research


Future Fields is a proud supporter of women in STEM. We would not be here today without the contributions of our female scientists and executives!

Future Fields Sustainability Committee

Future Fields' Sustainability Committee works across departments to build our internal sustainability capacity. Read more about our commitment to sustainability here.

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Future Fields was born and raised in Edmonton, Canada. Read more of our founders' story here.

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