RRC ID 22783
Author Mon H, Lee J, Fukushima M, Nagata Y, Fujii M, Xu J, Nishi O, Iiyama K, Kusakabe T.
Title Production and characterization of the celery mismatch endonuclease CEL II using baculovirus/silkworm expression system.
Journal Appl Microbiol Biotechnol
Abstract Mutation and polymorphism detection by nucleases has become a more important tool in clinical and biological researches. There are several kinds of single-stranded nucleases for detecting mismatched DNAs. One of them, CEL II, was isolated from Apium graveolens and cleaves DNA with high specificity at sites of mismatch. High-throughput mutation scanning requires large quantity of CEL II endonuclease. Here, we demonstrate high-level expression of CEL II using silkworm-baculovirus system. The recombinant CEL II secreted in silkworm hemolymph was glycosylated and susceptible to N-glycosidase F. Additionally, larger metal ions such as Ca(2+) and Sr(2+) were able to replace Mg(2+) and enhanced mismatch cleavage activity of CEL II. These results indicate that the silkworm-baculovirus platform is a good alternative system to obtain the functional CEL II.
Volume 97(15)
Pages 6813-22
Published 2013-8-1
DOI 10.1007/s00253-012-4583-1
PMID 23179626
MeSH Animals Apium / enzymology* Baculoviridae / genetics* Base Sequence Bombyx / genetics* DNA Primers DNA Restriction Enzymes / metabolism* Glycosylation
IF 3.53
Times Cited 10
WOS Category BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Resource
Silkworms d17