Anti-PR/PGR (phospho-S294) Antibody

Phospho-specific rabbit polyclonal reagent targeting the progesterone receptor at serine 294 (PR/PGR phospho-S294), supplied by Antibodies.com for research use only. Raised in rabbit and affinity-purified as an unconjugated IgG preparation at 1 mg/ml in Phosphate buffered saline (PBS) containing 0.05% sodium azide at approximately pH 7.2. Validated in Western blot (WB) and reactive with Human, Mouse, and Rat samples, supporting cross-species comparative studies of ligand-dependent PR phosphorylation in reproductive biology, breast cancer research, and hormone signaling pathways. Serine 294 is a well-characterized MAPK- and CK2-driven modification linked to rapid progesterone signaling, nuclear export, and receptor turnover via ubiquitination. Each vial contains a 100 µL sample, and the buffer formulation with 0.05% sodium azide as a preservative is intended for refrigerated short-term storage; for long-term use, aliquot to limit freeze-thaw cycles.