title: Interaction of the restriction endonuclease ScaI with its substrates.
abstract: The kinetic constants of the site-specific endonuclease, ScaI, for various substrates were determined. We estimated Vmax and Km for octa-, deca-, dodeca-, and hexadecanucleotides and for plasmid pBR322 DNA. Vmax for these substrates were close, but Km were quite different (in decreasing order, octa- greater than deca-, dodeca-, hexadeca- greater than pBR322). The results were discussed with respect to the tertiary structure of substrate.
mesh_terms: D004262:DNA Restriction Enzymes / Q000378:metabolism*; D015252:Deoxyribonucleases, Type II Site-Specific; D007700:Kinetics; D009690:Nucleic Acid Conformation; D009838:Oligodeoxyribonucleotides / Q000138:chemical synthesis / Q000378:metabolism; D010957:Plasmids; D013302:Streptomyces / Q000201:enzymology; D013379:Substrate Specificity
chemical_list: D009838:Oligodeoxyribonucleotides; D004262:DNA Restriction Enzymes; C047020:endodeoxyribonuclease ScaI; D015252:Deoxyribonucleases, Type II Site-Specific