what are splice junction mutations?



what are splice junction mutations?..

Answer / swapna

G-to-C substitution at the 5 end of an intron in the muscle-
specific subunit gene.

The mutation destroys the high-consensus GT sequence at the
5 splice junction of the intron, which causes skipping of
the preceding exon.

This is the second molecular genetic defect identified in
the myopathic variant of PhK deficiency.

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