Document Detail

Co-expression of two fibrolytic enzyme genes in CHO cells and transgenic mice.
MedLine Citation:
PMID:  23338789     Owner:  NLM     Status:  Publisher    
Cellulose is the main non-starch polysaccharides (NSP) in plant cell walls and acts as anti-nutritional factor in animal feed. However, monogastric animals do not synthesize enzymes that cleave such plant structural polysaccharides and thus waste of resources and pollute the environment. We described the vectors construction and co-expressions of a multi-functional cellulase EGX (with the activities of exo-β-1,4-glucanase, endo-β-1,4-glucanase, and endo-β-1,4-xylanase activities) from mollusca, Ampullaria crossean and a β-glucosidase BGL1 from Asperjillus niger in CHO cells and the transgenic mice. The recombinant enzymes were synthesised, secreted by the direction of pig PSP signal peptide and functionally active in the eukaryote systems including both of CHO cells and transgenic mice by RT-PCR analysis, western blot analysis and cellulolytic enzymes activities assays. Expressions were salivary glands-specific dependent under the control of pig PSP promoter in transgenic mice. 2A peptide was used as the self-cleaving sequence to mediate co-expression of the fusion genes and the cleavage efficiency was very high both in vitro and in vivo according to the western blot analysis. In summary, we have demonstrated that the single ORF containing EGX and BGL1 were co-expressed by 2A peptide in CHO cells and transgenic mice. It presents a viable technology for efficient disruption of plant cell wall and liberation of nutrients. To our knowledge, this is the first report using 2A sequence to produce multiple cellulases in mammalian cells and transgenic animals.
Miaorong Huang; Zicong Li; Xiaoling Huang; Wenchao Gao; Cailin Zhu; Hui Xu; Yujuan Yuan; Liang Shuai; Ruiai Chen; Zhenfang Wu; Dewu Liu
Related Documents :
24643139 - Chronic treatment with anesthetic propofol improves cognitive function and attenuates c...
24402309 - Involvement of histamine 4 receptor in the pathogenesis and progression of rheumatoid a...
24462389 - Lycium barbarum polysaccharide lbpf4-ol may be a new toll-like receptor 4/md2-mapk sign...
24441549 - Cleavage of iκbα by calpain induces myocardial nf-κb activation, tnf-α expression a...
23769029 - The effect of mtor-inhibition on nf-κb activity in kidney ischemia-reperfusion injury ...
23486009 - Podocyte repopulation by renal progenitor cells following glucocorticoids treatment in ...
15962709 - Aerosol-administered alpha-tocopherol attenuates lung inflammation in rats given lipopo...
21478259 - Embryonic catalase protects against endogenous and phenytoin-enhanced dna oxidation and...
7588709 - Construction of stable bhk-21 cells coexpressing human secretory glycoproteins and huma...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-22
Journal Detail:
Title:  Transgenic research     Volume:  -     ISSN:  1573-9368     ISO Abbreviation:  Transgenic Res.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9209120     Medline TA:  Transgenic Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Exploring the association between geneticvariation in the SUMO isopeptidase gene USPL1 and breast ca...
Next Document:  Clinical and molecular genetic analysis of a new mutation in children with Wolfram syndrome: A case ...