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. 2024 Mar 19;6:1301004. doi: 10.3389/fmedt.2024.1301004

Table 1.

Topics taught in each lab.

Lab Lab topic Description
1 Bacterial growth Spectrophotometer is used to determine the turbidity and therefore concentration of batch-cultured E. coli at specific time points followed by formulation and interpretation of bacterial growth curve.
2 Bacterial transformation E. coli are made competent using CaCl2 and heat shock technique and transformed using a recombinant plasmid. Cells are then cultured on agar plates to verify transformation using antibiotic resistance imparted by the plasmid.
3 DNA isolation and Purification Transformed E. coli are used to isolate plasmid using an alkaline lysis assay and the plasmid concentration and purity is determined by performing gel electrophoresis.
4 Restriction Digestion The isolated plasmid is subjected to restriction digestion using 2 separate restriction endonucleases or their combination. Gel electrophoresis is performed to assess the properties of digested and undigested plasmids.
5 Protein Quantification A Bicinchoninic acid (BCA) assay and UV absorbance method is employed to determine the concentration of unknown proteins.
6 Protein purification Affinity chromatography is used to purify and elute proteins isolated from bacterial cell culture.
7 Protein Concentration Centrifugal filtration method is used to concentrate the isolated proteins from lab 6 which are then quantified using BCA assay.
8 SDS-PAGE The concentrated samples from Lab 7 are separated using Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and assessed.