The 14-3-3 proteins are a family of proteins involved in the regulation of apoptosis, mitogenic signaling and cell-cycle checkpoints. The 14-3-3 proteins are thought to be key regulators of signal transduction events mediated through their binding to serine-phosphorylated proteins. Through binding Bad, 14-3-3 prevents apoptosis by sequestering Bad to the cytosol. The 14-3-3 proteins are also Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathway. They bind to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif. Binding generally results in the modulation of the activity of the binding partner.
Background References
1. Carninci P., Kasukawa T., et al. Science 309:1559-1563(2005).
3. Fu, H., et al. 14-3-3 proteins: structure, function, and regulation. Ann. Rev. Pharmacol. Toxicol. 40: 617–47 (2000).
Sequence Similarity
Belongs to the 14-3-3 family.
Post-translational Modification
The alpha, brain-specific form differs from the beta form in being phosphorylated. Phosphorylated on Ser-60 by protein kinase C delta type catalytic subunit in a sphingosine-dependent fashion.
Western blot analysis of 14-3-3 alpha+beta on different lysates with Mouse anti-14-3-3 alpha+beta antibody (M0407-14) at 1/5,000 dilution.
Lane 1: HAP1-parental cell lysate Lane 2: HAP1-14-3-3 alpha+beta KD cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 28 kDa Observed band size: 28 kDa
Exposure time: 20 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (M0407-14) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1/50,000 dilution was used for 1 hour at room temperature.
Western blot analysis of 14-3-3 alpha+beta on A549 cell lysates with Mouse anti-14-3-3 alpha+beta antibody (M0407-14) at 1/5,000 dilution.
Lysates/proteins at 10 µg/Lane.
Predicted band size: 28 kDa Observed band size: 28 kDa
Exposure time: 2 minutes;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (M0407-14) at 1/5,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1:100,000 dilution was used for 1 hour at room temperature.
Immunocytochemistry analysis of 293T cells labeling 14-3-3 alpha+beta with Mouse anti-14-3-3 alpha+beta antibody (M0407-14) at 1/50 dilution.
Immunohistochemical analysis of paraffin- embedded human breast carcinoma tissue using anti-14-3-3b/a Mouse mAb (Cat. # M0407-14).
Immunohistochemical analysis of paraffin-embedded Zebrafish tissue using anti-14-3-3b/a antibody. Counter stained with hematoxylin.
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