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REACTIVITY SENSITIVITY MW (kDa) SOURCE
25 Rabbit

Product Usage Information

Storage: Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

PGRMC1 Antibody recognizes endogenous levels of total PGRMC1 protein. This antibody does not cross-react with PGRMC2.


Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human PGRMC1 protein. Antibodies are purified by protein A and peptide affinity chromatography.

The progesterone receptor membrane component 1 (PGRMC1, Hpr6.6) was originally identified as a component of a progesterone-binding protein complex that also contains plasminogen activator inhibitor 1 RNA binding protein (PAIRBP1, SERBP1) (1,2). The structure of PGRMC1 protein includes a single transmembrane region and a carboxy-terminal cytochrome b5 heme-binding domain (3,4). Research studies confirm that PGRMC1 binds heme as well as binding and regulating cytochrome P450 enzymes responsible for the metabolism of clinical drugs and endogenous signaling molecules (5-7). While early research studies were equivocal on the ability of PGRMC1 to bind progesterone, studies using PGRMC1-fusion proteins clearly demonstrate that PGRMC1 binds progesterone with high affinity (2,8). Studies detailing expression of PGRMC1 in granulosa cells suggest that PGRMC1 mediates the anti-apoptotic actions of progesterone and that this protein is part of a signal transduction pathway that regulates granulosa cell function (9).


1.  Cahill, M.A. (2007) J Steroid Biochem Mol Biol 105, 16-36.

2.  Peluso, J.J. et al. (2008) Endocrinology 149, 534-43.

3.  Gerdes, D. et al. (1998) Biol Chem 379, 907-11.

4.  Mifsud, W. and Bateman, A. (2002) Genome Biol 3, RESEARCH0068.

5.  Crudden, G. et al. (2006) J Pharmacol Exp Ther 316, 448-55.

6.  Hughes, A.L. et al. (2007) Cell Metab 5, 143-9.

7.  Oda, S. et al. (2011) Drug Metab Dispos 39, 2057-65.

8.  Peluso, J.J. et al. (2009) J Clin Endocrinol Metab 94, 2644-9.

9.  Peluso, J.J. (2013) Front Neurosci 7, 99.


Entrez-Gene Id 10857
Swiss-Prot Acc. O00264


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