>tr|A2RP81|A2RP81_CITFR Beta-lactamase OS=Citrobacter freundii GN=blaPER-2 MNVITKCVFTASALLMLGLSSFVVSAQSPLLKEQIETIVTGKKATVGVAVWGPDDLEPLL LNPFEKFPMQSVFKLHLAMLVLHQVDQGKLDLNQSVTVNRAAVLQNTWSPMMKDHQGDEF TVAVQQLLQYSVSHSDNVACDLLFELVGGPQALHAYIQSLGVKEAAVVANEAQMHADDQV QYQNWTSMKAAAQVLQKFEQKKQLSETSQALLWKWMVETTTGPQRLKGLLPAGTIVAHKT GTSGVRAGKTAATNDAGVIMLPDGRPLLVAVFVKDSAESERTNEAIIAQVAQAAYQFELK KLSAVSPD