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Large-scale purification and acute toxicity of hygromycin B phosphotransferase.
- Source :
-
Biomedical and environmental sciences : BES [Biomed Environ Sci] 2009 Feb; Vol. 22 (1), pp. 22-7. - Publication Year :
- 2009
-
Abstract
- Objective: To provide the acute toxicity data of hygromycin B phosphotransferase (HPT) using recombinant protein purified from E. coli.<br />Methods: Recombinant HPT protein was expressed and purified from E. coli. To exclude the potential adverse effect of bacteria protein in recombinant HPT protein, bacterial control plasmid was constructed, and bacteria control protein was extracted and prepared as recombinant HPT protein. One hundred mice, randomly assigned to 5 groups, were administrated 10 g/kg, 5 g/kg, or 1 g/kg body weight of HPT or 5 g/kg body weight of bacterial control protein or phosphate-buffered saline (PBS) respectively by oral gavage.<br />Results: All animals survived with no significant change in body weight gain throughout the study. Macroscopic necropsy examination on day 15 revealed no gross pathological lesions in any of the animals. The maximum tolerated dose (MTD) of HPT was 10 g/kg body weight in mice and could be regarded as nontoxic.<br />Conclusion: HPT protein does not have any safety problems to human health.
- Subjects :
- Animals
Bacterial Proteins isolation & purification
Escherichia coli genetics
Escherichia coli metabolism
Female
Male
Mice
Mice, Inbred Strains
Phosphotransferases (Alcohol Group Acceptor) isolation & purification
Recombinant Proteins isolation & purification
Toxicity Tests, Acute
Bacterial Proteins toxicity
Phosphotransferases (Alcohol Group Acceptor) toxicity
Recombinant Proteins toxicity
Subjects
Details
- Language :
- English
- ISSN :
- 0895-3988
- Volume :
- 22
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Biomedical and environmental sciences : BES
- Publication Type :
- Academic Journal
- Accession number :
- 19462683
- Full Text :
- https://doi.org/10.1016/S0895-3988(09)60017-9