progesterone receptor B

{{Short description|Isoform of the progesterone receptor}}

The progesterone receptor B (PR-B) is one of three known isoforms of the progesterone receptor (PR), the main biological target of the endogenous progestogen sex hormone progesterone.{{cite journal | vauthors = Jacobsen BM, Horwitz KB | title = Progesterone receptors, their isoforms and progesterone regulated transcription | journal = Mol. Cell. Endocrinol. | volume = 357 | issue = 1–2 | pages = 18–29 | year = 2012 | pmid = 21952082 | pmc = 3272316 | doi = 10.1016/j.mce.2011.09.016 }}{{cite journal | vauthors = Scarpin KM, Graham JD, Mote PA, Clarke CL | title = Progesterone action in human tissues: regulation by progesterone receptor (PR) isoform expression, nuclear positioning and coregulator expression | journal = Nucl Recept Signal | volume = 7 | pages = e009 | year = 2009 | pmid = 20087430 | pmc = 2807635 | doi = 10.1621/nrs.07009 }} The other isoforms of the PR include the PR-A and PR-C.