Objective Lactoferrin and its interactive proteins were analyzed based on phylogenesis to further find proteins that could interact with lactoferrin.Methods Lactoferrin sequence and its interactive protein sequences were loaded into software MEGA 5.05 to construct phylogenetic tree in FASTA format with neighbor-joining method,the calibration frequency was 1000 times and other parameters were defaulted.Results First,lactoferrin and its interactive proteins had definite genetic relationship.Second,the interactive proteins themselves might be homologous.Conclusions Interrelation may exist among lactoferrin,myoglobin,apolipoprotein and glutamine synthetase based on phylogenetic tree by MEGA5.05.
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