Progesterone Receptor B (PR-B) is a 118 kDa member of the NR3 subfamily within the nuclear hormone receptor family of proteins. It is expressed in female reproductive tissues as well as neurons throughout the CNS. PR-B is particularly important in the mammary gland where it mediates proliferative responses to progesterone. Human PR‑B is 933 amino acids (aa) in length. It contains an N-terminal regulatory region (aa 1‑566), a DNA binding domain (aa 567‑639), and a steroid‑binding region (aa 681‑933). Ligand binding induces a key phosphorylation event at Ser294 catalyzed by ERK1/2, regulating cell growth, cell adhesion, and gene transcription. An alternate start site at Met165 generates 90 kDa PR-A, an isoform particularly important in the ovary and uterus that insures fertility.
Human Phospho-Progesterone R/NR3C3 (S294) Antibody
R&D Systems | Catalog # AF5955
Key Product Details
Validated by
Biological Validation
Species Reactivity
Human
Applications
Western Blot
Label
Unconjugated
Antibody Source
Polyclonal Rabbit IgG
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Product Specifications
Immunogen
Phosphopeptide containing human Progesterone RB S294 site
Accession # P06401
Accession # P06401
Specificity
Detects human Phospho-Progesterone R/NR3C3 (S294) in Western blots.
Clonality
Polyclonal
Host
Rabbit
Isotype
IgG
Scientific Data Images for Human Phospho-Progesterone R/NR3C3 (S294) Antibody
Detection of Human Phospho-Progesterone RB (S294) and Phospho-Progesterone RA (S130) by Western Blot.
Western blot shows lysates of T47D human breast cancer cell line untreated (-) or treated (+) with 100 nM synthetic progestin promegestone (R5020) for 60 minutes. PVDF Membrane was probed with 0.5 µg/mL of Rabbit Anti-Human Phospho-Progesterone R/NR3C3 (S294) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5955) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). Specific bands were detected for Phospho-Progesterone RB (S294) at approximately 118 kDa and Phospho-Progesterone RA (S130) at approximately 90 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Applications for Human Phospho-Progesterone R/NR3C3 (S294) Antibody
Application
Recommended Usage
Western Blot
0.5 µg/mL
Sample: T47D human breast cancer cell line
Sample: T47D human breast cancer cell line
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: Progesterone R/NR3C3
Long Name
Progesterone Receptor
Alternate Names
NR3C3, PGR, ProgesteroneR
Entrez Gene IDs
5241 (Human)
Gene Symbol
PGR
UniProt
Additional Progesterone R/NR3C3 Products
Product Documents for Human Phospho-Progesterone R/NR3C3 (S294) Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human Phospho-Progesterone R/NR3C3 (S294) Antibody
For research use only
Related Research Areas
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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