ARTIFICIAL MAMMALIAN CHROMOSOME
It is intended to provide an artificial mammalian chromosome which is stably held in mammalian cells and allows efficient expression of a target gene carried thereby. Namely, a first cyclic vector containing a mammalian centromere sequence and a selection marker gene and a second cyclic vector conta...
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Zusammenfassung: | It is intended to provide an artificial mammalian chromosome which is stably held in mammalian cells and allows efficient expression of a target gene carried thereby. Namely, a first cyclic vector containing a mammalian centromere sequence and a selection marker gene and a second cyclic vector containing a functional sequence are transferred into mammalian host cells. Then transformed cells are selected by using the above-described selection marker gene and cells holding an artificial mammalian chromosome are selecte d from among the transformed cells thus selected. Thus, it is possible to construct an artificial mammalian chromosome which has a mammalian replicati on origin, the mammalian centromere sequence and the functional sequence, is in a cyclic form, can be replicated in mammalian cells, extrachromosomally held i n the host cells and transferred to daughter cells in cell division. |
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