Large-scale purification and acute toxicity of hygromycin B phosphotransferase / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
;
(12): 22-27, 2009.
Artigo
em Inglês
| WPRIM
| ID: wpr-296009
ABSTRACT
<p><b>OBJECTIVE</b>To provide the acute toxicity data of hygromycin B phosphotransferase (HPT) using recombinant protein purified from E. coli.</p><p><b>METHODS</b>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.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSION</b>HPT protein does not have any safety problems to human health.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Proteínas de Bactérias
/
Proteínas Recombinantes
/
Fosfotransferases (Aceptor do Grupo Álcool)
/
Testes de Toxicidade Aguda
/
Escherichia coli
/
Toxicidade
/
Genética
/
Metabolismo
/
Camundongos Endogâmicos
Limite:
Animais
Idioma:
Inglês
Revista:
Biomedical and Environmental Sciences
Ano de publicação:
2009
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS