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U6 spliceosomal RNA
U6 snRNA
is the
non-coding
small nuclear RNA
(snRNA) component of U6
snRNP
(
small nuclear ribonucleoprotein
), an RNA-protein complex that combines with other snRNPs, unmodified
pre-mRNA
, and various other proteins to assemble a
spliceosome
, a large RNA-protein molecular complex upon which
splicing
of
pre-mRNA
occurs. Splicing, or the removal of
introns
, is a major aspect of
post-transcriptional modification
, and takes place only in the
nucleus
of
eukaryotes
.
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