J 2003

The appearance of truncated cyclin A2 correlates with differentiation of mouse embryonic stem cells

ANGER, M., V. BRYJA, L. JIRMANOVÁ, Aleš HAMPL, J. MOTLÍK et. al.

Základní údaje

Originální název

The appearance of truncated cyclin A2 correlates with differentiation of mouse embryonic stem cells

Autoři

ANGER, M., V. BRYJA, L. JIRMANOVÁ, Aleš HAMPL, J. MOTLÍK, P. DVOŘÁK a M. KUBELKA

Vydání

Biochemical and biophysical research communications, 2003, 0006-291X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

Genetika a molekulární biologie

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 2.836

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000181881300029

Klíčová slova anglicky

stem cells

Štítky

Změněno: 8. 7. 2009 10:59, prof. Mgr. Vítězslav Bryja, Ph.D.

Anotace

V originále

The presence of a form of cyclin A2 with an N-terminal truncation has recently been reported in various murine cell lines and tissues. The truncated cyclin A2 binds to and activates the cyclin-dependent kinase 2 (CDK2). However, CDK2 bound by the truncated cyclin A2 is located in the cytoplasm in contrast to CDK2 bound to full-length cyclin A2, which is in the nucleus. Here, we show that proliferating mouse embryonic stem cells (ES cells) contain very little truncated cyclin A2 but as the cells are induced to differentiate the amount of truncated cyclin A2 increases. The expression pattern of truncated cyclin A2 was the same in p27(Kip1) -/- differentiating ES cells as in the differentiating wild-type cells. We conclude that p27(Kip1) is not necessary for the proteolytic cleavage that gives rise to the truncated form of cyclin A2 in differentiating ES cells and that this post-translational modification is not a function of the cell density but is correlated with differentiation.