Tyrosine 3 monooxygenase/tryptophan 5 monooxygenase activation protein beta polypeptide
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.
Belongs to the 14-3-3 family.
The alpha, brain-specific form differs from the beta form in being phosphorylated. Isoform Short contains a N-acetylmethionine at position 1.
Cytoplasm. Melanosome. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.