14-3-3 protein zeta/delta

Function

Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways (PubMed:14578935, PubMed:15071501, PubMed:15644438, PubMed:16376338, PubMed:16959763, PubMed:31024343, PubMed:9360956). Binds to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif (PubMed:35662396). Binding generally results in the modulation of the activity of the binding partner (PubMed:35662396). Promotes cytosolic retention and inactivation of TFEB transcription factor by binding to phosphorylated TFEB (PubMed:35662396). Induces ARHGEF7 activity on RAC1 as well as lamellipodia and membrane ruffle formation (PubMed:16959763). In neurons, regulates spine maturation through the modulation of ARHGEF7 activity (By similarity).

Post-translational modifications

The delta, brain-specific form differs from the zeta form in being phosphorylated (Probable). Phosphorylation on Ser-184 by MAPK8; promotes dissociation of BAX and translocation of BAX to mitochondria (PubMed:15071501, PubMed:15696159). Phosphorylation on Thr-232; inhibits binding of RAF1 (PubMed:9360956). Phosphorylated on Ser-58 by PKA and protein kinase C delta type catalytic subunit in a sphingosine-dependent fashion (PubMed:11956222, PubMed:12865427, PubMed:15883165, PubMed:16376338). Phosphorylation on Ser-58 by PKA; disrupts homodimerization and heterodimerization with YHAE and TP53 (PubMed:11956222, PubMed:12865427, PubMed:15883165, PubMed:16376338).

Sequence Similarities

Belongs to the 14-3-3 family.

Cellular localization

• Cytoplasm
• Melanosome
• Located to stage I to stage IV melanosomes.

Alternative names

14-3-3 protein zeta/delta, Protein kinase C inhibitor protein 1, KCIP-1, YWHAZ

Database links

swissprot:P63104 entrezGene:7534 entrezGene:7529 omim:601289 omim:601288 swissprot:P31946