Protein Structural Chemist (i guess) here and I'd like an even higher level 'regular expression' which would allow one to search DNA sequences likely to code fo

Protein Structural Chemist (i guess) here and I'd like an even higher level 'regular expression' which would allow one to search DNA sequences likely to code for protein domains with likely secondary structure, (something like a string to search for "Secstruc" within "Exon Structure" [1]). The "likely" will always be a problem in these sorts of attempts; any genomics regular expressions should allow for the option of the statistical best hit. [1] http://www.rcsb.org/pdb/protein/P00918 http://www.rcsb.org/pdb/protein/P00918