Single-Strand Annealing Plays a Major Role in Double-Strand DNA Break Repair following CRISPR-Cas9 Cleavage in Leishmania

Autor: Wen-Wei Zhang, Greg Matlashewski
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: mSphere, Vol 4, Iss 4 (2019)
Druh dokumentu: article
ISSN: 2379-5042
DOI: 10.1128/mSphere.00408-19
Popis: ABSTRACT CRISPR-Cas9 genome editing relies on an efficient double-strand DNA break (DSB) and repair. Contrary to mammalian cells, the protozoan parasite Leishmania lacks the most efficient nonhomologous end-joining pathway and uses microhomology-mediated end joining (MMEJ) and, occasionally, homology-directed repair to repair DSBs. Here, we reveal that Leishmania predominantly uses single-strand annealing (SSA) (>90%) instead of MMEJ (
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