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Physicochemical compatibility

Phosphorylation of S507 adjacent to the cyclin-binding motif of A-kinase anchor protein 12 (Akap12) by PKC subfamily blocks binding to the G1/S-specific cyclin-D1 (Ccnd1). As a result, the function of A-kinase anchor protein 12 (Akap12) as a scaffold is inhibited and G1/S-specific cyclin-D1 (Ccnd1) is translocated to the nucleus where it regulates progression of the cell cycle from G1 to S phase.

(1) A-kinase anchor protein 12 (Akap12)
(2) G1/S-specific cyclin-D1 (Ccnd1)

Interaction #1 Akap12 - Ccnd1

(1) DOC_CYCLIN_1 motif (501KKLF504) in A-kinase anchor protein 12 (Akap12)
(2) Cyclin, N-terminal domain (26-153) in G1/S-specific cyclin-D1 (Ccnd1)

Interaction Regulation
PTM-dependent Abrogation (Phosphorylation of S507 on A-kinase anchor protein 12 (Akap12)) of the A-kinase anchor protein 12 (Akap12) DOC_CYCLIN_1 motif - G1/S-specific cyclin-D1 (Ccnd1) Cyclin, N-terminal domain interaction

Regulatory Enzymes for switch
Modifying enzymes for residue: S507: PKC subfamily


(1) SSeCKS, a major protein kinase C substrate with tumor suppressor activity, regulates G(1)-->S progression by controlling the expression and cellular compartmentalization of cyclin D.
Lin et al. Mol. Cell. Biol. (2000)

See also

Other switches involving participants
G1/S-specific cyclin-D1 (Ccnd1) - 1 more (view)

Other switches involving interfaces
DOC_CYCLIN_1 - 3 more (view)
Cyclin, N-terminal domain - 3 more (view)

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