LAMBDA-REPLACEMENT VECTORS CARRYING POLYLINKER SEQUENCES
LAMBDA-REPLACEMENT VECTORS CARRYING POLYLINKER SEQUENCES
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DOI:
10.1016/s0022-2836(83)80190-9
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发表时间:
1983-01-01
影响因子:
5.6
通讯作者:
MURRAY, N
中科院分区:
文献类型:
--
作者:
FRISCHAUF, AM;LEHRACH, H;MURRAY, N
To simplify the construction and screening of genomic libraries, a new family of .lambda. replacement vectors (EMBL1, EMBL2, EMBL3, EMBL4) and derivatives containing amber mutations (EMBL3 Sam, EMBL3 AamBam, EMBL3 AamSam were made. These vectors have a large capacity and polylinker sequences flanking the middle fragment. The polylinkers allow a choice of cloning enzymes and, especially useful in the case of cloning of Sau3A partial digests, the excision of the entire insert by flanking SalI (EMBL3) or EcoRI (EMBL4) sites. Phages with inserts can be selected either biochemically (particularly EMBL3) or genetically by their Spi- phenotype. Amber derivatives of the EMBL3 vector allow the application of genetic screening procedures based on selection for the products of homologous recombination events, and for the selective cloning of DNA sequences linked to supF genes.