Micronucleus-specific histone H1 is required for micronuclear chromosome integrity in Tetrahymena thermophila.
Micronucleus-specific histone H1 is required for micronuclear chromosome integrity in Tetrahymena thermophila.
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嗜热四膜虫的微核染色体完整性需要微核特异性组蛋白 H1
DOI:
10.1371/journal.pone.0187475
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发表时间:
2017
期刊:
影响因子:
3.7
通讯作者:
Wang W
中科院分区:
文献类型:
--
作者:
Qiao J;Xu J;Bo T;Wang W
Histone H1 molecules play a key role in establishing and maintaining higher order chromatin structures. They can bind to linker DNA entering and exiting the nucleosome and regulate transcriptional activity. Tetrahymena thermophila has two histone H1, namely, macronuclear histone H1 and micronuclear histone H1 (Mlh1). Mlh1 is specifically localized at micronuclei during growth and starvation stages. Moreover, Mlh1 is localized around micronuclei and forms a specific structure during the conjugation stage. It co-localizes partially with spindle apparatus during micronuclear meiosis. Analysis of MLH1 knock-out revealed that Mlh1 was required for the micronuclear integrity and development during conjugation stage. Overexpression of Mlh1 led to abnormal conjugation progression. RT-PCR analysis indicated that the expression level of HMGB3 increased in ΔMLH1 strains, while the expression level of MLH1 increased in ΔHMGB3 cells during conjugation. These results indicate that micronuclear integrity and sexual development require normal expression level of Mlh1 and that HmgB3 and Mlh1 may functionally compensate each other in regulating micronuclear structure in T. thermophila.
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影响因子:
5.3
作者:
Fan, YH;Nikitina, T;Skoultchi, AI
通讯作者:
Skoultchi, AI
DOI:
10.1073/pnas.92.14.6434
发表时间:
1995-07-03
影响因子:
11.1
作者:
SIROTKIN, AM;EDELMANN, W;SKOULTCHI, AI
通讯作者:
SKOULTCHI, AI
影响因子:
14.9
作者:
Brown, DT;Alexander, BT;Sittman, DB
通讯作者:
Sittman, DB
影响因子:
64.5
作者:
SHEN, XT;YU, LL;GOROVSKY, MA
通讯作者:
GOROVSKY, MA
影响因子:
64.8
作者:
Luger, K;Mader, AW;Richmond, TJ
通讯作者:
Richmond, TJ