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introns-exons starts and ends.

Mary K. Kuhner mkkuhner at kingman.genetics.washington.edu
Wed Aug 25 13:49:17 EST 1999


In article <7q14hv$qgt at net.bio.net>,
Richard P. Grant  <rgrant at netscape.net> wrote:

>You'd think so, wouldn't you?  No, the intron boundary frequently occurs
>in the middle of a triplet.  At least in fibronectin, anyway :-)  I guess
>you've a one in three chance of getting a complete IN REGISTER triplet at
>any given splice point.

I've seen the argument made that break-at-codon-boundaries introns
are a bit more common than the other two kinds:  this is used as
an argument in favor of introns as a shuffling mechanism.  I don't
know if the observation has held up to additional sequences.

Mary Kuhner mkkuhner at eskimo.com




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