title: [Substrate specificity of restriction endonuclease Eco781].
abstract: The recognition sequence and cleavage point of restriction endonuclease Eco781 have been determined as 5'-GGCGCC-. There are several known enzymes recognizing the same sequence, although the prototype NarI and isoschizomers NdaI and NunII cleave the substrate to produce 5'-protruding ends, whereas cleavage with isoschizomer BbeI results in 3'-protruding ends. Therefore, restrictase Eco78I, generating flush ends, may be regarded as an enzyme with new specificity among the restriction endonucleases recognizing the 5'-GGCGCC-sequence.
mesh_terms: D001483:Base Sequence; D004262:DNA Restriction Enzymes / Q000378:metabolism*; D004269:DNA, Bacterial / Q000378:metabolism; D004279:DNA, Viral / Q000378:metabolism; D015252:Deoxyribonucleases, Type II Site-Specific; D004926:Escherichia coli / Q000201:enzymology*; D006868:Hydrolysis; D013379:Substrate Specificity
chemical_list: D004269:DNA, Bacterial; D004279:DNA, Viral; D004262:DNA Restriction Enzymes; D015252:Deoxyribonucleases, Type II Site-Specific; C046719:GGCGCC-specific type II deoxyribonucleases
vernacular_title: Opredelenie substratnoĭ spetsifichnosti endonukleazy restriktsii Eco781.