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Cyclin-Dependent Kinase 16/PCTAIRE Kinase 1 Is Activated by Cyclin Y and Is Essential for Spermatogenesis (CROSBI ID 308741)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Mikolcevic, Petra ; Sigl, Reinhard ; Rauch, Veronika ; Hess, Michael W. ; Kristian, Pfaller ; Barisic, Marin ; Pelliniemi, Lauri J. ; Boesl, Michael ; Geley, Stephan Cyclin-Dependent Kinase 16/PCTAIRE Kinase 1 Is Activated by Cyclin Y and Is Essential for Spermatogenesis // Molecular and cellular biology, 32 (2012), 868-879. doi: 10.1128/MCB.06261-11

Podaci o odgovornosti

Mikolcevic, Petra ; Sigl, Reinhard ; Rauch, Veronika ; Hess, Michael W. ; Kristian, Pfaller ; Barisic, Marin ; Pelliniemi, Lauri J. ; Boesl, Michael ; Geley, Stephan

engleski

Cyclin-Dependent Kinase 16/PCTAIRE Kinase 1 Is Activated by Cyclin Y and Is Essential for Spermatogenesis

Cyclin-dependent kinase 16 (CDK16, PCTK1) is a poorly characterized protein kinase, highly expressed in the testis and the brain. Here, we report that CDK16 is activated by membrane- associated cyclin Y (CCNY). Treatment of transfected human cells with the protein kinase A (PKA) activator forskolin blocked, while kinase inhibition promoted, CCNY-dependent targeting of CDK16-green fluorescent protein (GFP) to the cell membrane. CCNY binding to CDK16 required a region upstream of the kinase domain and was found to be inhibited by phosphorylation of serine 153, a potential PKA phosphorylation site. Thus, in contrast to other CDKs, CDK16 is regulated by phosphorylation-controlled cyclin binding. CDK16 isolated from murine testis was unphosphorylated, interacted with CCNY, and exhibited kinase activity. To investigate the function of CDK16 in vivo, we established a conditional knockout allele. Mice lacking CDK16 developed normally, but male mice were infertile. Spermatozoa isolated from their epididymis displayed thinning and elongation of the annulus region, adopted a bent shape, and showed impaired motility. Moreover, CDK16-deficient spermatozoa had malformed heads and excess residual cytoplasm, suggesting a role of CDK16 in spermiation. Thus, CDK16 is a membrane-targeted CDK essential for spermatogenesis.

Cyclin dependent kinase, PCTK1, CDK16, spermatogenesis, CCNY

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Podaci o izdanju

32

2012.

868-879

objavljeno

0270-7306

1098-5549

10.1128/MCB.06261-11

Povezanost rada

Biologija, Interdisciplinarne prirodne znanosti

Poveznice
Indeksiranost