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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1998-1-8
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pubmed:abstractText |
The cDNA sequence encoding the growth hormone (GH) I gene of goldfish (gf GH-I) was cloned into the pSXIVVI+ X3 baculovirus transfer vector. This transfer vector, without the initiation codon (ATG) and using a SynXIV promoter to activate transcription, was constructed for a baculovirus expression system. The recombinant transfer vector with the gf GH-I insert was used to produce the recombinant baculovirus TnNPV-SX+ gf GH-I 21a. Both in vivo and in vitro approaches were used to test the expression of growth hormone I gene using TnNPV-SX+ gf GH-I 21a. For in vivo studies, larvae of Trichoplusia ni were infected with the recombinant baculovirus. Four days later, growth hormone-like immunoreactivity was detected in the hemolymph of these infected larvae. For in vitro studies, insect Spodoptera frugiperda 9(Sf9) cells were infected with TnNPV-SX+ gf GH-I 21a. After incubation for at least 24 hours, growth hormone-like immunoreactivity was detected in Sf9 insect cells as well as in the culture medium. Western blotting analysis of larval hemolymph and Sf9 cell contents after viral infection revealed a protein band of 22.5 kDa immunoreactive to goldfish growth hormone antiserum. This is consistent with the predicted molecular weight deduced from the cDNA of goldfish growth hormone I gene. These results, taken together, suggest that the baculovirus expression system can be used to produce the recombinant growth hormone of a fish species.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
1042-749X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
13
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
91-7
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pubmed:dateRevised |
2006-4-21
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pubmed:meshHeading |
pubmed-meshheading:9343707-Animals,
pubmed-meshheading:9343707-Cell Line,
pubmed-meshheading:9343707-Deoxyribonucleases, Type II Site-Specific,
pubmed-meshheading:9343707-Gene Expression,
pubmed-meshheading:9343707-Genetic Vectors,
pubmed-meshheading:9343707-Goldfish,
pubmed-meshheading:9343707-Growth Hormone,
pubmed-meshheading:9343707-Larva,
pubmed-meshheading:9343707-Moths,
pubmed-meshheading:9343707-Nucleopolyhedrovirus,
pubmed-meshheading:9343707-Spodoptera
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pubmed:year |
1997
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pubmed:articleTitle |
Production of recombinant goldfish growth hormone I in a baculovirus expression system.
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pubmed:affiliation |
State Key Laboratory for Biological Control, Zhongshan University, Guangzhou, China.
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pubmed:publicationType |
Journal Article
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