/usr/share/perl5/Bio/Structure/ is in libbio-perl-perl 1.7.2-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Bio/Structure/Atom.pm
/usr/share/perl5/Bio/Structure/Chain.pm
/usr/share/perl5/Bio/Structure/Entry.pm
/usr/share/perl5/Bio/Structure/IO/
/usr/share/perl5/Bio/Structure/IO.pm
/usr/share/perl5/Bio/Structure/IO/pdb.pm
/usr/share/perl5/Bio/Structure/Model.pm
/usr/share/perl5/Bio/Structure/Residue.pm
/usr/share/perl5/Bio/Structure/SecStr/
/usr/share/perl5/Bio/Structure/SecStr/DSSP/
/usr/share/perl5/Bio/Structure/SecStr/DSSP/Res.pm
/usr/share/perl5/Bio/Structure/SecStr/STRIDE/
/usr/share/perl5/Bio/Structure/SecStr/STRIDE/Res.pm
/usr/share/perl5/Bio/Structure/StructureI.pm