Structure of chick progesterone receptors
Schrader, W.T.; O'Malley, B.W.
Cancer Research 38(11 Part 2): 4199-4203
1978
ISSN/ISBN: 0008-5472 PMID: 698959 Document Number: 125908
Oviduct progesterone receptors have been purified from both immature chicks and laying hens. The subunits, progestophilins A and B, have different molecular weights, but each is the same from either tissue source. Immunological data show that the subunits are cross-reactive. The hen B protein as isolated to homogeneity contains nonradioactive progesterone in stoichiometric amounts as shown by gas chromatography-mass spectrometry. These studies further confirm our earlier determinations on these proteins.