14-3-3 Beta / Alpha (YWHAB) Antibody – Mouse Polyclonal

This gene encodes a protein belonging to the 14-3-3 family of proteins, members of which mediate signal transduction by binding to phosphoserine-containing proteins. This highly conserved protein family is found in both plants and mammals. The encoded protein has been shown to interact with RAF1 and CDC25 phosphatases, suggesting that it may play a role in linking mitogenic signaling and the cell cycle machinery. Two transcript variants, which encode the same protein, have been identified for this gene. [provided by RefSeq, Jul 2008]

Function: Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways. Binds 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. Negative regulator of osteogenesis. Blocks the nuclear translocation of the phosphorylated form (by AKT1) of SRPK2 and antagonizes its stimulatory effect on cyclin D1 expression resulting in blockage of neuronal apoptosis elicited by SRPK2. Ref.13 Ref.15

Subunit structure: Homodimer. Interacts with SAMSN1 and PRKCE

By similarity. Interacts with SSH1 and TORC2/CRTC2. Interacts with ABL1; the interaction results in cytoplasmic location of ABL1 and inhibition of cABL-mediated apoptosis. Interacts with ROR2 (dimer); the interaction results in phosphorylation of YWHAB on tyrosine residues. Interacts with GAB2 and YAP1 (phosphorylated form). Interacts with the phosphorylated (by AKT1) form of SRPK2. Interacts with PKA-phosphorylated AANAT.

Subcellular location: Cytoplasm. Melanosome. Note: Identified by mass spectrometry in melanosome fractions from stage I to stage IV. Ref.11

Post-translational modification: The alpha, brain-specific form differs from the beta form in being phosphorylated

By similarity. Phosphorylated on Ser-60 by protein kinase C delta type catalytic subunit in a sphingosine-dependent fashion

By similarity. Ref.13Isoform Short contains a N-acetylmethionine at position 1

By similarity.

Sequence similarities: Belongs to the 14-3-3 family.