Department of Medical Biology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey.
Nat Genet. 2011 Jan;43(1):23-6. doi: 10.1038/ng.725. Epub 2010 Dec 5.
Functional impairment of DNA damage response pathways leads to increased genomic instability. Here we describe the centrosomal protein CEP152 as a new regulator of genomic integrity and cellular response to DNA damage. Using homozygosity mapping and exome sequencing, we identified CEP152 mutations in Seckel syndrome and showed that impaired CEP152 function leads to accumulation of genomic defects resulting from replicative stress through enhanced activation of ATM signaling and increased H2AX phosphorylation.
功能损伤的 DNA 损伤反应通路会导致基因组不稳定性增加。本文中,我们将中心体蛋白 CEP152 描述为基因组完整性和细胞对 DNA 损伤反应的新调节因子。通过纯合性作图和外显子组测序,我们在 Seckel 综合征中鉴定出 CEP152 突变,并证实功能受损的 CEP152 通过增强 ATM 信号的激活和增加 H2AX 磷酸化,导致复制压力下基因组缺陷的积累。