GENE REPLACEMENT IN TOXOPLASMA-GONDII WITH CHLORAMPHENICOL ACETYLTRANSFERASE AS SELECTABLE MARKER
GENE REPLACEMENT IN TOXOPLASMA-GONDII WITH CHLORAMPHENICOL ACETYLTRANSFERASE AS SELECTABLE MARKER
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DOI:
10.1126/science.8235614
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发表时间:
1993-11-05
期刊:
影响因子:
56.9
通讯作者:
BOOTHROYD, JC
中科院分区:
文献类型:
--
作者:
KIM, K;SOLDATI, D;BOOTHROYD, JC
A system for stable transformation of Toxoplasma gondii tachyzoites was developed that exploited the susceptibility of Toxoplasma to chloramphenicol. Introduction of the chloramphenicol acetyltransferase (CAT) gene fused to Toxoplasma flanking sequences followed by chloramphenicol selection resulted in parasites stably expressing CAT. A construct incorporating the tandemly repeated gene, B1, targeted efficiently to its homologous chromosomal locus. Knockout of the single-copy gene, ROP1, was also successful. Stable transformation should permit the identification and analysis of Toxoplasma genes important in the interaction of this opportunistic parasite with its host.