spliceosome

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Related to Spliceosomes: RNA splicing

splic·e·o·some

(splīs'ē-ō-sōm'),
A specialized structure that participates in the removal of introns and resplicing of remaining exons of mRNA; in addition to the mRNA primary transcript, at least four small nuclear RNAs (snRNAs) and some proteins are involved.
[splice + -some]

spliceosome

(splīs′ə-sōm′)
n.
A nucleoprotein particle that aids in the splicing of messenger RNA in eukaryotes.

spliceosome

molecular complex, including SMALL NUCLEAR RNAs/SMALL NUCLEAR RIBONUCLEOPROTEINS, essential to SPLICING.

spliceosome

a ribonucleoprotein complex involved in the splicing of RNA.
References in periodicals archive ?
The spliceosome proteins thus contribute to the added genetic information that alternative splicing creates.
SPLICEOSOME A specialized group of proteins and ribonucleic acids that carries out alternative splicing.
14] snRNA variants for their ability to promote RNA processing reactions, including the type of transesterification reaction executed by spliceosomes (7).
We tested whether this "retro-evolution" approach could be a useful tool for exploring the origin and function of the small nuclear RNAs (snRNAs) of the mammalian spliceosome.
ELLINGTON: Given that you provided the spliceosome with every opportunity to return to its RNA roots and it didn't, would you care to comment on the hypothesis that the spliceosome was once all RNA?