Ewan Birney wrote: >In your modules listed above do they > > (a) go into the Bio:: namespace (Bio::Unigene etc?) Yes. > (b) inheriet from Bio::Root::Root.pm? Yes. > (c) use Bioperl conventions of new functions looking like > > $uni_io = Bio::UnigeneIO->new( -file => 'somefile'); Yes. Cheers, Andrew.