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Estrogen Receptor, alpha (ERa)

Cat no: E3565-09S


Supplier: United States Biological
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The estrogen receptor (ER) is a ligand-activated transcription factor composed of several domains important for hormone binding, DNA binding, and activation of transcription. Alternative splicing results in several ER mRNA transcripts, which differ primarily in their 5-prime untranslated regions. Two isoforms of the human ER, ERA and ER-beta, occur, each with distinct tissue and cell patterns of expression. Pelletier and El-Alfy (2000) studied the immunocytochemical localization of ESRA and ESRB in human reproductive tissues. In the ovary, ERB immunoreactivity was found in nuclei of granulosa cells of growing follicles at all stages from primary to mature follicles, interstitial gland, and germinal epithelium cells. Nuclear staining for ERA occurred in thecal, interstitial gland, and germinal epithelium cells. In the uterus, strong ERA immunoreactivity was detected in nuclei of epithelial, stromal, and muscle cells. Applications: Suitable for use in Western Blot and Immunohistochemistry (Fr) (paraffin-embedded sections). Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot Store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Catalogue number: E3565-09S
Reactivities: Human
Hosts: Mouse
Applications: Immunohistochemistry, Western Blot
Size: 100ug
Form: As reported
P type: Mab
Isotype: IgG1
Purity: Purified by Protein A affinity chromatography.
References: 1. Paech K. Science 1997, 277: 1508- 10. 2. Pertschuk LP,Cancer, 1996. 199677: 514- 9.
Additional info: Species Crossreactivity: Human. Other species have not been tested.

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