title: Site-specific DNA splicing: a general procedure for the creation of a restriction site at a predetermined position in a DNA sequence.
abstract: A method is described for creating any of a wide array of restriction sites at a predetermined position in a known DNA sequence. The method utilizes the exonuclease activity of BAL 31 and a specially designed bifunctional oligodeoxynucleotide linker. The desired restriction site is generated when the linker is ligated to those BAL 31-digested DNA fragments which end with the target sequence. The proper ligation product is then identified by a highly specific hybridization procedure. The method is versatile and specific and is especially useful in the isolation of functional elements of a gene.
mesh_terms: D001483:Base Sequence; D003001:Cloning, Molecular / Q000379:methods*; D004262:DNA Restriction Enzymes; D005818:Genetic Engineering / Q000379:methods*; D005822:Genetic Vectors
chemical_list: D004262:DNA Restriction Enzymes