Detection of Human Phospho-PP2A (Y307), Catalytic Subunit by Western Blot. Western blot shows lysates of A549 human lung carcinoma cell line untreated (-) or treated (+) with hydroxyurea. PVDF membrane was probed with 1 µg/mL of Rabbit Anti-Human/Mouse/Rat Phospho-PP2A (Y307), Catalytic Subunit Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3989), followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Phospho-PP2A (Y307), Catalytic Subunit at approximately 36 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
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.
Protein Phosphatase 2A (PP2A) dephosphorylates serine and threonine residues in proteins. This ubiquitously expressed enzyme plays a critical role in modulating cell survival, growth factor responses, and neurotransmission. Phosphorylation near the C-terminus at Y307 of the catalytic subunit decreases the phosphatase activity of PP2A and reduces its ability to bind to proteins such as CD28 and the glutamate receptor GluR5. Phosphorylation of PP2A at Y307 is highest during M-phase and lowest during S-phase of the cell cycle. Transient PP2A phosphorylation at this site is also observed in growth factor-stimulated cells.
Entrez Gene IDs:
5515 (Human); 51792 (Mouse)
EC 184.108.40.206; PP2A; PP2A-alpha; PP2Ac; PP2CA; PP2Calpha; PPP2CA; protein phosphatase 2 (formerly 2A), catalytic subunit, alpha isoform; protein phosphatase 2, catalytic subunit, alpha isozyme; protein phosphatase 2A catalytic subunit, alpha isoform; Replication protein C; RP-C; serine/threonine protein phosphatase 2A, catalytic subunit, alpha isoform; serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
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