/
(?P<reference_sequence>(NP|XP|WP)_[0-9]{4,12})\.(?P<version>([0-9]?[0-9])):(?P<prefix>p)\.(?P<ref>Ala|Arg|Asn|Asp|Cys|Gln|Glu|Gly|His|Ile|Leu|Lys|Met|Phe|Pro|Pyl|Ser|Sec|Thr|Trp|Tyr|Val|Asx|Glx|Xaa|Xle)(?P<start>[1-9][0-9]{0,7})(?P<alt>Ala|Arg|Asn|Asp|Cys|Gln|Glu|Gly|His|Ile|Leu|Lys|Met|Phe|Pro|Pyl|Ser|Sec|Thr|Trp|Tyr|Val|Asx|Glx|Xaa|Xle)+fs(Ter[1-9][0-9]{0,7}|\*)$
/
gm