寻找合适的模板：RNA聚合酶IV，一种植物特有的RNA聚合酶。

Finding the right template: RNA Pol IV, a plant-specific RNA polymerase.

作者信息

Vaughn Matthew W, Martienssen Robert A

机构信息

Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.

出版信息

Mol Cell. 2005 Mar 18;17(6):754-6. doi: 10.1016/j.molcel.2005.03.003.

DOI:10.1016/j.molcel.2005.03.003

PMID:15780931

Abstract

A paradox of RNA-directed transcriptional silencing is that low-level transcription through the silenced locus is observed and may help maintain the silenced state. Discovery of a plant-specific RNA polymerase that directs heterochromatic silencing helps to resolve this issue.

摘要

RNA 介导的转录沉默的一个悖论是，人们观察到通过沉默位点的低水平转录，且这种转录可能有助于维持沉默状态。一种指导异染色质沉默的植物特异性 RNA 聚合酶的发现有助于解决这一问题。