Construction of the aequorea Victoria green fluorescent protein (gfp) for expression in mycobacterium sp

Najamudin, Khairal Ezani (2003) Construction of the aequorea Victoria green fluorescent protein (gfp) for expression in mycobacterium sp. Masters thesis, Universiti Sains Malaysia.

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Abstract

The development of sensitive methods for observing individual bacterial cells in a population in experiment and natural environments is very crucial for rapid development of anti-mycobacterial drugs. This is because more pathogenic Mycobacteria are slow growing organisms, and therefore the screening compounds for anti-mycobacterial activity is slow and inefficient. Previously, studies have been done using fluorescent bacteria that expressing 13- galactosidase (21 ), and luciferase (3) as a high screening format for antimicrobial activity. However, one drawback of these systems is that substrates such as luciferin have to be added at the required time points to induce fluorescence. Recently Green Fluorescent Protein (GFP) has become a valuable and favourite tool as a marker of growth, which could be used for screening of antimicrobial activity. This is because the marker can be visualised without interruption or termination of an experiment as is required with the detection of other commonly used markers such as B-galactosidase and luciferase. In this study a synthetic gene of GFP was constructed with mycobacteria codon bias using assembly PCR. A strong mycobacterial promoter from 65 kD mycobacterial heat shock protein was added to derive the expression. The constructed gene was cloned into vector and transformed into Escherichia coli. The ultimate aim is to use the recombinant plasmid carrying the synthetic gene with mycobacterial codon bias to create a recombinant fluorescing BCG, whichcan be used as a tool for screening compound libraries for anti-mycobacterial activity.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Bacteria
Subjects: R Medicine > RC Internal medicine
Divisions: Kampus Kesihatan (Health Campus) > Pusat Pengajian Sains Kesihatan (School of Health Sciences) > Thesis
Depositing User: Mr Abdul Hadi Mohammad
Date Deposited: 10 Jul 2019 07:19
Last Modified: 22 Oct 2020 03:03
URI: http://eprints.usm.my/id/eprint/44952

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