group I and group II introns

[Scott A Hoffman]

I am trying to categorize an intervening sequence as either a group I or
group II intron.  I'm not quite sure how to proceed.  Can anyone recommend
a good review article, book?  Are there any conserved sequences that I
should be looking for?  I understand that there is extreme sequence
diversity within these introns, would trying to fold the RNA into a 2°
structure to find conserved domains work?  If so what programs (mac based
or internet) for RNA folding should I be looking for?  Is there anything
else I should know?  Thanks in advance.

Scott

schoffma at badlands.nodak.edu