splice site

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3.2 Self-splicing
introns reveal that
RNA can catalyze RNA splicing
Self-splicing
introns: the intron itself folds
into a specific conformation within the
precursor RNA and catalyzes the chemistry
of its own release.And there t are two
classes of self-splicing introns, group I and
group II self-splicing introns.
Practical definition for self-splicing introns:
the introns that can remove themselves
from pre-RNAs in the test tube in the
absence of any proteins or other RNA
molecules.