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Generation of deletion derivatives by targeted transformation of human-derived yeast artificial chromosomes

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America; (USA)
; ;  [1]
  1. Johns Hopkins Univ. School of Medicine, Baltimore, MD (USA)
Mammalian DNA segments cloned as yeast artificial chromosomes (YACs) can be manipulated by DNA-mediated transformation when placed in an appropriate yeast genetic background. A fragmenting vector has been developed that can introduce a yeast telomere and selectable marker into human-derived YACs at specific sites by means of homologous recombination, deleting all sequences distal to the recombination site. A powerful application of the method uses a human Alu family repeat sequence to target recombination to multiple independent sites on a human-derived YAC. Sets of deletion derivatives generated by this procedure greatly facilitate restriction mapping of large genomic segments. Targeting recombination with single copy sequences, such as cDNAs, will have many additional applications. This approach establishes a paradigm for manipulation and characterization of mammalian DNA segments cloned as YACs.
OSTI ID:
6275375
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America; (USA), Journal Name: Proceedings of the National Academy of Sciences of the United States of America; (USA) Vol. 87:4; ISSN 0027-8424; ISSN PNASA
Country of Publication:
United States
Language:
English