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S. Margino
Fakultas Pertanian, Universitas Gadjah Mada

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Transformasi Fragmen DNA Salmonella Ke Dalam Sel E. coli DH5-α E.S. Rahayu; A. Pertiwiningrum; R. Indrati; S. Raharjo; S. Rahayu; S. Margino
agriTECH Vol 17, No 1 (1997)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2057.365 KB) | DOI: 10.22146/agritech.19320

Abstract

Genomic DNA from Salmonella typhimarium ATCC 14028, cultured in a Luria broth for 24 hr at 37°C, was isolated from the cells using EDTA as a chelating agent and SDS as a detergent and lysing agent. The amount of genomic DNA was then digested with each of three restriction endonucleases, i.e., EcoRI, HindlII, and BamHI for 4 hr at 37°C. A plasmid (pUC19) was used as a vector. Prior to use, the pUC19 plasmid was split with one of the three restriction enzymes and dephosphorylated using a bacterial alkaline phosphatase. The genomic DNA was then ligated to the corresponding prediggested plasmid using a ligase at 15°C over night. Transformation of the DNA recombinant into E.coli DH5-a was successfully carried out using a heat shock method as indicated by gel electrophoresis