Man pages matching name bio::align::proteinstatistics in section 3pm:

Bio::Align::ProteinStatistics.3pm.en	debian 10 / libbio-perl-perl
Bio::Align::ProteinStatistics.3pm.en	debian 11 / libbio-perl-perl
Bio::Align::ProteinStatistics.3pm.en	debian 12 / libbio-perl-perl