The 14-3-3 family of proteins are important regulatory molecules ubiquitiously expressed in all eukarryotic cells which bind to numerous signaling proteins in various pathways driving critical cellular pathways of apoptosis, differentiation and cell cycle. 14-3-3 theta specifically has also been shown to play an important regulatory role in the TLR2 signaling pathways as a negative regulator of TLR2 ligand Pam3CySk4 induced NF-kB activation. 14-3-3 theta has previously been shown to interact with TLR4 ligand and MyD88 dependent phosphorylated PkC epsilon. 14-3-3 theta in the TLR4 signaling pathway is a positive regulator controlling release of IRF3 indcuded pro-inflammatory cytokines RANTES and IP-10. Currently identified by mass spec as part of the TLR2 signaling complex and taken along with TLR4 data, a 14-3-3 theta antibody can be used to examine the different regulatory functions of 14-3-3 theta for different TLRs through its interaction with common or unique TLR signaling adaptor molecules in addition to MyD88 or PkC epsilon such as TRAM or TRIF allowing further clarification of TLR specific pathway regulation.
Background References
1. Lehmann LH et al. Essential role of sympathetic endothelin A receptors for adverse cardiac remodeling. Proc Natl Acad Sci U S A 111:13499-504 (2014).
2. Dettmer U et al. In vivo cross-linking reveals principally oligomeric forms of a-synuclein and -synuclein in neurons and non-neural cells. J Biol Chem 288:6371-85 (2013).
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 on different lysates with Rabbit anti-14-3-3 antibody (ET1701-4) at 1/1,000 dilution.
Lane 1: HEK-293 cell lysate (20 µg/Lane) Lane 2: HepG2 cell lysate (20 µg/Lane) Lane 3: NIH/3T3 cell lysate (20 µg/Lane) Lane 4: Mouse brain tissue lysate (40 µg/Lane) Lane 5: Rat brain tissue lysate (40 µg/Lane)
Predicted band size: 28 kDa Observed band size: 28 kDa
Exposure time: 10 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 (ET1701-4) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Western blot analysis of 14-3-3 on different lysates with Rabbit anti-14-3-3 antibody (ET1701-4) at 1/1,000 dilution.
Lane 1: Rat testis tissue lysate Lane 2: Rat brain tissue lysate Lane 3: C6 cell lysate Lane 4: HeLa cell lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 28 kDa Observed band size: 28 kDa
Exposure time: 10 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 (ET1701-4) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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