Retrofitting of a satellite repeat DNA-based murine artificial chromosome (ACes) to contain loxP recombination sites

被引:13
作者
Stewart, S [1 ]
MacDonald, N [1 ]
Perkins, E [1 ]
deJong, G [1 ]
Perez, C [1 ]
Lindenbaum, M [1 ]
机构
[1] Chromos Mol Syst Inc, Burnaby, BC V5A 1W9, Canada
关键词
mammalian artificial chromosomes; ACes; loxP; RFP; gene therapy;
D O I
10.1038/sj.gt.3301757
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A satellite DNA-based mammalian artificial chromosome (ACes) was generated and subsequently modified by targeting of a loxP-red fluorescent protein (RFP) expression cassette via homologous recombination into a ribosomal DNA (rDNA)-containing locus. Clones containing correctly targeted ACes were identified by PCR from populations of RFP-expressing cells enriched by FACS sorting and were further characterized by fluorescent in situ hybridization. The targeted ACes maintained its ability to be purified to near homogeneity. Studies are currently underway to further characterize the functionality, carrying capacity, stability and transfectability of this modified ACes.
引用
收藏
页码:719 / 723
页数:5
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