Engineering meganuclease for precise plant genome modification
2015
Daboussi, Fayza | Stoddard, Thomas J. | Zhang, Feng | Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés (LISBP) ; Institut National de la Recherche Agronomique (INRA)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse) ; Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS) | Cellectis
Meganucleases, also termed homing endonucleases, are rare-cutting enzymes that are encoded within the genome of nearly all microbes. These enzymes recognize and cleave long DNA sequences (typically 18–30 base pairs) generating double-strand DNA breaks (DSBs). The resulting DSBs can be repaired by different pathways leading to a variety of site-specific DNA modifications, such as insertions, deletions, or point mutations. Over the past 15 years tremendous efforts have been made to engineer a number of variant meganucleases that cleave novel DNA targets. Engineered meganucleases are now being used to generate targeted genomic modifications for a variety of basic and biotechnology applications, including creating valuable traits in crop species.
显示更多 [+] 显示较少 [-]