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Published on: May 2, 2017
Molecular cloning and characterization of Taiwan macaque lactoferrin
Jui-Hsien Chang1, Chao-Chung Chen, Ming-Chieh Chao
1Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Background:
Lactoferrin (LF) is an iron-binding glycoprotein that plays an important role in combating a wide range of pathogens and contributes innate protective defenses of mammals.
Methods:
We cloned and sequenced the full-length cDNA for LF from Taiwan macaque. The antimicrobial activity and iron-binding ability of the purified recombinant macaque LF (rmLF) were determined and compared with those of human LF (hLF).
Results And Conclusions:
The complete mLF cDNA (GenBank: EU523857) encoded a 710-aa precursor with a 19-aa signal peptide. The nucleotide sequence of mLF showed the highest identity to the rhesus monkey LF (98%), whereas the putative amino acid sequence of mLF showed the highest identity to the hLF (90%). The rmLF and natural hLF showed almost equivalent antibacterial activities against Klebsiella pneumoniae and mLF presented a slightly lower activity against Listeria monocytogenes than natural hLF. In addition, the patterns of iron release from mLF and hLF were nearly identical.
