Detects human Cytosolic Sulfotransferase 1E1/SULT1E1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross‑reactivity with recombinant human SULT1A1, 1B1, 2A1, 2B1, or 4A1 is observed.
Monoclonal Mouse IgG2B Clone # 726211
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant human Cytosolic Sulfotransferase 1E1/SULT1E1 Asn2-Ile294 Accession # P49888
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Detection of Human Cytosolic Sulfotransferase 1E1/SULT1E1 by Western Blot. Western blot shows lysates of human liver tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Cytosolic Sulfotransferase 1E1/SULT1E1 Monoclonal Antibody (Catalog # MAB5545) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Cytosolic Sulfotransferase 1E1/SULT1E1 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Sterile PBS to a final concentration of 0.5 mg/mL.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.
Cytosolic Sulfotransferases catalyze the sulfation of many hormones, neurotransmitters, drugs, and xenobiotic compounds. They are distinct from Golgi resident sulfotransferases by the absence of transmembrane domains and are located in the cytoplasm. SULT1E1 is widely known as an estrogen sulfotransferase and may control estrogen levels by converting free estradiol to its inactive sulfate conjugate (1). Known substrates of this enzyme also include dehydroepiandrosterone, pregnenolone, ethinylestradiol, equalenin, diethylstilbesterol, 4‑nitrophenol, 1-napthol and resveratrol (2, 3). SULT1E1 activity is found in reproductive organs (4), intestine and liver (3, 5).
Gong, H. et al. (2008) Cancer Res. 68:7386.
Falany, C.N. et al. (1995) J. Steroid Biochem. Mol. Biol. 52:529.
Miksits, M. et al. 2005, Xenobiotica 35:1101.
Takase, Y. et al. (2007) The Prostate 67:405.
Schrag, M.L. et al. (2004) Drug Metabolism and Disposition 32:1299.
Robbins, P.W. (1962) Methods in Enzymology, Vol. V, Academic Press, Inc., New York, 964.
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