DOT1A-dependent H3K76 methylation is required for replication regulation in Trypanosoma brucei.
DOT1A-dependent H3K76 methylation is required for replication regulation in Trypanosoma brucei.
复制标题
DOI:
10.1093/nar/gks801
复制
发表时间:
2012-11-01
影响因子:
14.9
通讯作者:
Janzen CJ
中科院分区:
文献类型:
--
作者:
Gassen A;Brechtefeld D;Schandry N;Arteaga-Salas JM;Israel L;Imhof A;Janzen CJ
Cell-cycle progression requires careful regulation to ensure accurate propagation of genetic material to the daughter cells. Although many cell-cycle regulators are evolutionarily conserved in the protozoan parasite Trypanosoma brucei, novel regulatory mechanisms seem to have evolved. Here, we analyse the function of the histone methyltransferase DOT1A during cell-cycle progression. Over-expression of DOT1A generates a population of cells with aneuploid nuclei as well as enucleated cells. Detailed analysis shows that DOT1A over-expression causes continuous replication of the nuclear DNA. In contrast, depletion of DOT1A by RNAi abolishes replication but does not prevent karyokinesis. As histone H3K76 methylation has never been associated with replication control in eukaryotes before, we have discovered a novel function of DOT1 enzymes, which might not be unique to trypanosomes.
登录
查看更多内容
影响因子:
3.3
作者:
San-Segundo, PA;Roeder, GS
通讯作者:
Roeder, GS
影响因子:
1.5
作者:
Burkard, Gabriela;Fragoso, Cristina M.;Roditi, Isabel
通讯作者:
Roditi, Isabel
影响因子:
21.3
作者:
Tardat, Mathieu;Brustel, Julien;Julien, Eric
通讯作者:
Julien, Eric
影响因子:
1.5
作者:
Oberholzer, M;Morand, S;Seebeck, T
通讯作者:
Seebeck, T
影响因子:
1.5
作者:
Hammarton, Tansy C.
通讯作者:
Hammarton, Tansy C.