There are 302 sequences that can be obtained from hmmer.
105 of this sequences correspond to the same domain as CRISPR.
Only 52 sequences have less than 20% gaps.
(6-21-2017)
https://www.ebi.ac.uk/Tools/hmmer/results/6CAA1B66-569B-11E7-B4B0-4D94DBC3747A.1/domain