Detection of Human Phospho-MEK1 (S218/S222)/ MEK2 (S222/S226) by Western Blot.
Western blot shows lysates of Jurkat human acute T cell leukemia cell line and HeLa human cervical epithelial carcinoma cell line untreated (-) or treated (+) with 200 nM PMA or PMA and Ionomycin for 20 minutes. PVDF membrane was probed with 1:1000 dilution of Rabbit Anti-Human/Mouse/Rat Phospho-MEK1 (S218/S222)/ MEK2 (S222/S226) Monoclonal Antibody (Catalog # MAB8407) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Phospho-MEK1 (S218/S222)/ MEK2 (S222/S226) at approximately 50 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
The product is shipped with polar packs. 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
12 months from date of receipt, -20 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after opening.
6 months, -20 °C under sterile conditions after opening.
MEK1 and MEK2, also known as MAP2K1 and MAP2K2, are activated in response to mitogenic stimuli. Activation occurs through dual phosphorylation at S218/S222 of MEK1 and S222/S226 of MEK2 by several upstream MAP3Ks, including the Raf kinases. Both MEK1 and MEK2 are dual-specificity protein kinases, phosphorylating and activating ERK1 and ERK2 at Thr and Tyr positions.
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