title: Retention of enzymatic activity by N-terminal domain (1-78) T4-lysozyme: expression of synthetic DNA in Escherichia coli.
abstract: DNA of 235 b.p. coding for N-terminal domain (1-78) T4-lysozyme was synthesized and cloned by ligating twelve synthetic fragments with a linearized plasmid pUCE8 followed by transformation. On expression in E. coli strain JM103 cells, colonies containing the synthetic DNA were found to be lytic. On purification, clone ptly. 23-5 was found to contain polypeptide (M.W. 10,500), corresponding to N-terminal domain, its dimeric and aggregate form. It was identified by amino acid sequence analysis of the dimeric form.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D004262:DNA Restriction Enzymes; D004926:Escherichia coli / Q000235:genetics*; D005796:Genes; D005813:Genes, Synthetic; D005814:Genes, Viral; D009113:Muramidase / Q000235:genetics* / Q000378:metabolism; D013604:T-Phages / Q000201:enzymology / Q000235:genetics*
chemical_list: D004262:DNA Restriction Enzymes; D009113:Muramidase