Cancer Terms

Activator of S Phase Kinase retired

Cancer Terms -> Retired Concepts -> Retired Concept 2003 -> Activator of S Phase Kinase retired

Activator of S Phase Kinase retired Definition

Encoded by growth factor and E2F-regulated widely expressed human ASK Gene, 77-kD nuclear Activator of S Phase Kinase (dup) is a cyclin-like regulatory subunit of CDC7L1 kinase involved in G1/S transition. ASK mRNA and protein are low in G1, peak in S phase, and reduce in G2/M; ASK is extensively phosphorylated during S phase. Containing a bipartite NLS, conserved motifs N (N-terminus) and C (central region), and 2 PEST sequences, ASK appears essential for entry into S phase. Motif C is essential for CDC7L1 catalytic subunit interaction with ASK, a major activator of CDC7L1 kinase activity on MCM2.

Activator of S Phase Kinase retired Synonyms

Activator of S Phase Kinase, ASK, DBF4 Homolog, Dumbbell Former 4 Homolog

Terms in Activator of S Phase Kinase retired category



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