/usr/share/perl5/Bio/DB/ is in gbrowse 2.56+dfsg-3build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Bio/DB/GFF/
/usr/share/perl5/Bio/DB/GFF/Aggregator/
/usr/share/perl5/Bio/DB/GFF/Aggregator/match_gap.pm
/usr/share/perl5/Bio/DB/GFF/Aggregator/reftranscript.pm
/usr/share/perl5/Bio/DB/GFF/Aggregator/waba_alignment.pm
/usr/share/perl5/Bio/DB/GFF/Aggregator/wormbase_gene.pm
/usr/share/perl5/Bio/DB/SeqFeature/
/usr/share/perl5/Bio/DB/SeqFeature/Store/
/usr/share/perl5/Bio/DB/SeqFeature/Store/Alias.pm
/usr/share/perl5/Bio/DB/SeqFeature/Store/BedLoader.pm
/usr/share/perl5/Bio/DB/Tagger/
/usr/share/perl5/Bio/DB/Tagger.pm
/usr/share/perl5/Bio/DB/Tagger/Tag.pm
/usr/share/perl5/Bio/DB/Tagger/mysql.pm