人类第10号染色体缺失的编码与磷酸酶和张力蛋白同源的基因(phosphatase and tensin homologue deleted on chromosome 10,PTEN)是继p53后第二重要的与多种肿瘤发生发展有密切关系的抑癌基因。该基因能转录一段5.5kb的mRNA,其编码的...人类第10号染色体缺失的编码与磷酸酶和张力蛋白同源的基因(phosphatase and tensin homologue deleted on chromosome 10,PTEN)是继p53后第二重要的与多种肿瘤发生发展有密切关系的抑癌基因。该基因能转录一段5.5kb的mRNA,其编码的蛋白在结构上与蛋白磷酸酶的催化结构域以及细胞骨架蛋白、张力蛋白和辅助蛋白具有高度同源性。展开更多
The repeated DNA in the genomes of three fish species (Dario rerio, Monopterus albus and Mastacembelus aculeatus), were compared with those in human Y chromosome-specific heterochromatin by genomic comparative in situ...The repeated DNA in the genomes of three fish species (Dario rerio, Monopterus albus and Mastacembelus aculeatus), were compared with those in human Y chromosome-specific heterochromatin by genomic comparative in situ hybridization.The results showed that the repeated DNA in the genomes of three fish species could not hybridize with those in human Y chromosome-specific heterochromatin region and the human Y chromosome had its specific repeated DNA sequence.Some problems about the evolution of the repeated DNA in human Y chromosome-specific heterochromatin region were discussed.展开更多
文摘人类第10号染色体缺失的编码与磷酸酶和张力蛋白同源的基因(phosphatase and tensin homologue deleted on chromosome 10,PTEN)是继p53后第二重要的与多种肿瘤发生发展有密切关系的抑癌基因。该基因能转录一段5.5kb的mRNA,其编码的蛋白在结构上与蛋白磷酸酶的催化结构域以及细胞骨架蛋白、张力蛋白和辅助蛋白具有高度同源性。
文摘The repeated DNA in the genomes of three fish species (Dario rerio, Monopterus albus and Mastacembelus aculeatus), were compared with those in human Y chromosome-specific heterochromatin by genomic comparative in situ hybridization.The results showed that the repeated DNA in the genomes of three fish species could not hybridize with those in human Y chromosome-specific heterochromatin region and the human Y chromosome had its specific repeated DNA sequence.Some problems about the evolution of the repeated DNA in human Y chromosome-specific heterochromatin region were discussed.