heterogenous nuclear RNA


heterogenous nuclear RNA
(= hnRNA)
Originally identified as a class of RNA, found in the nucleus but not the nucleolus, which is rapidly labelled and with a very wide range of sizes, 2-40 kilobases. It represents the primary transcripts of RNA polymerase II and includes precursors of all messenger RNAs from which introns are removed by splicing.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

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