Work

Site-Specific Genomic Integration in Mammalian Cells Mediated by Phage φC31 Integrase

Year: 2001

Type: article

Abstract: We previously established that the phage phiC31 integrase, a site-specific recombinase, mediates efficient integration in the human cell environment at attB and attP phage attachment sites on extrachromosomal vectors. We show here that phage attP sites inserted at various locations in human and mouse chromosomes serve as efficient targets for precise site-specific integration. Moreover, we characterize native "pseudo" attP sites in the human and mouse genomes that also mediate efficient integrase-mediated integration. These sites have partial sequence identity to attP. Such sites form naturally occurring targets for integration. This phage integrase-mediated reaction represents an effective site-specific integration system for higher cells and may be of value in gene therapy and other chromosome engineering strategies.

Source: Molecular and Cellular Biology

DOI: 10.1128/mcb.21.12.3926-3934.2001

Authors: Bhaskar Thyagarajan, Eric C. Olivares, Roger P. Hollis, Daniel S. Ginsburg, Michele P. Calos

Institutions: Stanford Medicine, Stanford University

Language: English

Topic: Virus-based gene therapy research

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: green

Funders: Ford Foundation, National Institutes of Health, National Cancer Institute, National Institute of Diabetes and Digestive and Kidney Diseases

Awards: SITE-SPECIFIC INTEGRATION FOR GENE THERAPY, RECOMBINASE MEDIATED SITE SPECIFIC INTEGRATION FOR GENE, Leveraging innovative technologies in basic and clinical cancer research