I have a multi-fasta protein file like this
>SF_hydrolase MKG... >LH_reductase MKI... >SM_hydrolase MSN...
Basically, I would like to extract only the fasta headers that have the other "reductase". I know how to extract headers that have the same headers as the ones present on a list, but I don't know how to extract fasta-headers solely based on one of the words.. Hope you can help me! Cheers