Telomeric TERB1-TRF1 interaction is crucial for male meiosis.
Telomeric TERB1-TRF1 interaction is crucial for male meiosis.
复制标题
端粒 TERB1-TRF1 相互作用对于雄性减数分裂至关重要。
DOI:
10.1038/nsmb.3496
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发表时间:
2017-12
影响因子:
16.8
通讯作者:
Lei M
中科院分区:
文献类型:
--
作者:
Long J;Huang C;Chen Y;Zhang Y;Shi S;Wu L;Liu Y;Liu C;Wu J;Lei M
During meiotic prophase, the meiosis-specific telomere-binding protein TERB1 regulates chromosome movement required for homologous pairing and recombination by interacting with the telomeric shelterin subunit TRF1. Here, we report the crystal structure of the TRF1-binding motif of human TERB1 in complex with the TRFH domain of TRF1. Notably, specific disruption of the TERB1-TRF1 interaction by a point mutation in the mouse Terb1 gene results in infertility only in males. We find that this mutation causes an arrest in the zygotene-early pachytene stage and mild telomere abnormalities of autosomes but unpaired X and Y chromosomes in pachytene, leading to massive spermatocyte apoptosis. We propose that the loss of telomere structure mediated by the TERB1-TRF1 interaction significantly affects homologous pairing of the telomere-adjacent pseudoautosomal region (PAR) of the X and Y chromosomes in mouse spermatocytes. Our findings uncover a specific mechanism of telomeres that surmounts the unique challenges of mammalian X-Y pairing in meiosis.
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影响因子:
30.8
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Kim, SH;Kaminker, P;Campisi, J
通讯作者:
Campisi, J
影响因子:
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作者:
Hirose Y;Suzuki R;Ohba T;Hinohara Y;Matsuhara H;Yoshida M;Itabashi Y;Murakami H;Yamamoto A
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Yamamoto A
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8.8
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Lee CY;Horn HF;Stewart CL;Burke B;Bolcun-Filas E;Schimenti JC;Dresser ME;Pezza RJ
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Pezza RJ
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5.3
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Frescas, David;de lange, Titia
通讯作者:
de lange, Titia
影响因子:
9.8
作者:
Brown, PW;Judis, L;Hassold, TJ
通讯作者:
Hassold, TJ