Molecular biology. A circuitous route to noncoding RNA.
Molecular biology. A circuitous route to noncoding RNA.
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DOI:
10.1126/science.1238522
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发表时间:
2013-04-26
期刊:
影响因子:
--
通讯作者:
Sharp PA
中科院分区:
文献类型:
--
作者:
Wilusz JE;Sharp PA
Most genetic information is expressed as, and transacted by, proteins. Yet, less than 2% of the human genome actually codes for proteins, prompting a search for functions for the other 98% of the genome, once considered to be mostly “junk DNA.” Transcription is pervasive, however, and high-throughput sequencing has identified tens of thousands of distinct RNAs generated from the non—protein—coding portion of the genome . These so-called noncoding RNAs vary in length, but like protein-coding RNAs, appear to be linear molecules with 5′ and 3′ termini, reflecting the defined start and end points of RNA polymerase on the DNA template. But do all RNAs have to be linear?
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