>sp|P45515|ATR_CITFR Corrinoid adenosyltransferase OS=Citrobacter freundii MYRIYTRTGDNGTTALFGGSRIDKDDIRVEAYGTVDELISQLGVCYASTRQAELRQELHA MQKMLFVLGAELASDQKGLTRLKQRIGEEDIQALEQLIDRNMAQSGPLKEFVIPGKNLAS AQLHVARTLTRRLERILIAMGRTLTLRDEARRYINRLSDALFSMARIEETTPDVCA