非洲爪蟾大小各异的核糖体DNA重复单元沿着核仁组织区排列成内部均一的簇。
Differently sized rDNA repeating units of Xenopus laevis are arranged as internally homogeneous clusters along the nucleolar organizer.
作者信息
Junakovic N, Poretti A, Amaldi F, Buongiorno-Nardelli M
出版信息
Nucleic Acids Res. 1978 Apr;5(4):1335-43. doi: 10.1093/nar/5.4.1335.
Abstract
The organization of differently sized genes coding for rRNA in Xenophus laevis has been investigated by partial EcoRI or HindIII digestion. The electrophoretic patterns obtained revealed that most adjacent repeating units are equally sized. This conclusion is in agreement with a previous suggestion that the nucleolar organizer is made up of internally homogeneous blocks of rRNA genes.
摘要
通过部分EcoRI或HindIII酶切，对非洲爪蟾中编码rRNA的不同大小基因的组织情况进行了研究。所得的电泳图谱显示，大多数相邻的重复单元大小相同。这一结论与之前的观点一致，即核仁组织区由rRNA基因内部均一的片段组成。
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