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Product Includes Quantity Applications Reactivity MW(kDa) Isotype
14-3-3 β/α Antibody 9636 40 µl
H M R Mk 28 Rabbit 
14-3-3 γ (D15B7) Rabbit mAb 5522 40 µl
H M R Mk Pg 27 Rabbit IgG
14-3-3 ζ/δ (D7H5) Rabbit mAb 7413 40 µl
H M R Mk Pg 28 Rabbit IgG
14-3-3 ε Antibody 9635 40 µl
H M R Mk 28 Rabbit 
14-3-3 τ Antibody 9638 40 µl
H M R Mk 28 Rabbit 
14-3-3 η (D23B7) Rabbit mAb 5521 40 µl
H M R Mk B Pg 27 Rabbit 
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl
All Goat 

Product Description

The 14-3-3 Family Antibody Sampler Kit provides an economical means to investigate the expression of various 14-3-3 isoforms within the cell. The kit contains enough primary and secondary antibodies to perform four Western blot experiments.


Specificity / Sensitivity

Each antibody in the 14-3-3 Family Antibody Sampler Kit detects endogenous levels of its respective target.


Source / Purification

Polyclonal antibodies are produced by immunizing animals with synthetic peptides corresponding to the sequences of human 14-3-3 ß/α, 14-3-3 ε and 14-3-3 τ proteins. Antibodies are purified by protein A and peptide affinity chromatography. Monoclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Arg80 of human 14-3-3 ζ/δ protein, Leu37 of human 14-3-3 η protein and Ile79 of human 14-3-3 γ protein.

The 14-3-3 family of proteins plays a key regulatory role in signal transduction, checkpoint control, apoptotic and nutrient-sensing pathways (1,2). 14-3-3 proteins are highly conserved and ubiquitously expressed. There are at least seven isoforms, β, γ, ε, σ, ζ, τ, and η that have been identified in mammals. The initially described α and δ isoforms are confirmed to be phosphorylated forms of β and ζ, respectively (3). Through their amino-terminal α helical region, 14-3-3 proteins form homo- or heterodimers that interact with a wide variety of proteins: transcription factors, metabolic enzymes, cytoskeletal proteins, kinases, phosphatases, and other signaling molecules (3,4). The interaction of 14-3-3 proteins with their targets is primarily through a phospho-Ser/Thr motif. However, binding to divergent phospho-Ser/Thr motifs, as well as phosphorylation independent interactions has been observed (4). 14-3-3 binding masks specific sequences of the target protein, and therefore, modulates target protein localization, phosphorylation state, stability, and molecular interactions (1-4). 14-3-3 proteins may also induce target protein conformational changes that modify target protein function (4,5). Distinct temporal and spatial expression patterns of 14-3-3 isoforms have been observed in development and in acute response to extracellular signals and drugs, suggesting that 14-3-3 isoforms may perform different functions despite their sequence similarities (4). Several studies suggest that 14-3-3 isoforms are differentially regulated in cancer and neurological syndromes (2,3).


1.  Muslin, A.J. and Xing, H. (2000) Cell Signal 12, 703-9.

2.  Mackintosh, C. (2004) Biochem J 381, 329-42.

3.  Dougherty, M.K. and Morrison, D.K. (2004) J Cell Sci 117, 1875-84.

4.  Yaffe, M.B. (2002) FEBS Lett 513, 53-7.

5.  Bridges, D. and Moorhead, G.B. (2004) Sci STKE 2004, re10.


Entrez-Gene Id 7529, 7531, 7533, 7532, 10971, 7534
Swiss-Prot Acc. P31946, P62258, Q04917, P61981, P27348, P63104


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.