Hi tony, I think Splitter should do the job : http://www.hgmp.mrc.ac.uk/Software/EMBOSS/Apps/splitter.html Cheers, Thomas Tony Cox wrote: > Is there an emboss app to split a large fasta file into a set of smaller ones? > I'm combing the docs but can't see anything - it may be staring me in the > face... > > thanks > > Tony >