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LATS1 is a putative serine/threonine kinase that localizes to the mitotic apparatus and complexes with cell cycle controller CDC2 kinase in early mitosis. The protein is phosphorylated in a cell-cycle dependent manner, with late prophase phosphorylation remaining through metaphase. The N-terminal region of the protein binds CDC2 to form a complex showing reduced H1 histone kinase activity, indicating a role as a negative regulator of CDC2/cyclin A. In addition, the C-terminal kinase domain binds to its own N-terminal region, suggesting potential negative regulation through interference with complex formation via intramolecular binding. Biochemical and genetic data suggest a role as a tumor suppressor. This is supported by studies in knockout mice showing development of soft-tissue sarcomas, ovarian stromal cell tumors and a high sensitivity to carcinogenic treatments.
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Protein Aliases: centrosomal protein 135; centrosomal protein 135kDa; Centrosomal protein 4; Centrosomal protein of 135 kDa; centrosome protein cep135; Cep135
Gene Aliases: BC062951; CEP135; CEP4; Gm1044; KIAA0635; MCPH8; RGD1310726
UniProt ID: (Human) Q66GS9, (Mouse) Q6P5D4
Entrez Gene ID: (Human) 9662, (Mouse) 381644, (Rat) 305288
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