Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 316, Issue 4, Pages 991-996Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2004.02.148
Keywords
Blomia tropicalis; Blo t 5; house dust mite; Chinese hamster ovary cells; CHO; codon optimization
Categories
Ask authors/readers for more resources
Blo t 5 is a major allergen from house dust mite Blomia tropicalis. Purification of native Blo t 5 (nBlo t 5) from whole dust mite extract is tedious and gave low yield. In this study, we demonstrated that codon optimization facilitated high-level expression of Blo t 5 in Chinese hamster ovary (CHO)-K1 cells and thus allows production of sufficient recombinant cBlo t 5 for specific immunotherapy. A codon optimized Blo t 5 gene was synthesized by PCR and the codon optimized or wild-type Blo t 5 gene in pcDNA3.0 was transfected into CHO-K1 cells and stably selected with Geneticin (G418). Western-immuno blot analysis of spent culture media detected a positive band at 14 kDa for the codon optimized but not wild-type gene transfectants. In addition, a stable CHO-K1 clone produced up to 13 mg/L of the cBlo t 5 protein having a high correlation of human IgE reactivities and allergenicity to the native Blo t 5. thus indicating proper conformation of this recombinant form. (C) 2004 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available