the Designing of a plasmid to produce a modified Pfu polymerase enzyme using the pTi template and verifying the construct

Abstract

This research discusses the design of an expression plasmid for a modified Pfu polymerase enzyme within a pTi plasmid template that is used for the first time for this purpose. It contains several different characteristics that make it superior

to regular commercial enzymes and is multi-use with desirable features. Some sequences were incorporated into a Sso7d protein molecule that increases the stability of the enzyme and strengthens the Polymerization by fortifying the attachment of the polymerase on the target chain to carry out amplification with high speed and stability.

The in-silico software design used several open-source databases provided from previous research articles, and the Benchling cloud platform was adopted to design the plasmid and ensure its effectiveness. After assembly, an expression plasmid of 7476bp length was produced that contains the Lac operator, a kanamycin resistance gene, and a T7 promoter to ensure abundant expression of the enzyme, and a x10His poly histidine tail was added in order to facilitate purification of the enzyme in the subsequent stages of production.

To confirm the plasmid in laboratory experiments, standards were determined for enzymatic cleavage using the HindIII restriction enzyme, while simulating the

resulting electrophoresis form and performing actual electrophoresis to compare the conformity of the program results with the actual results. In addition, specific primers were designed to carry out the sequencing, and the effectiveness of the pfu polymerase gene was confirmed through the sequencing process for some selected fragments, sequences without mutations in active sites were observed, making this plasmid an acceptable candidate for further testing to produce the Pfu polymerase enzyme.

The in-silico software design used several open-source databases provided from previous research articles, and the Benchling cloud platform was adopted to design the plasmid and ensure its effectiveness. After assembly, an expression plasmid of 7476bp length was produced that contains the Lac operator, a kanamycin resistance gene, and a T7 promoter to ensure abundant expression of the enzyme, and a x10His poly histidine tail was added in order to facilitate purification of the enzyme in the subsequent stages of production.

To confirm the plasmid in laboratory experiments, standards were determined for enzymatic cleavage using the HindIII restriction enzyme, while simulating the

resulting electrophoresis form and performing actual electrophoresis to compare the conformity of the program results with the actual results. In addition, specific primers were designed to carry out the sequencing, and the effectiveness of the pfu polymerase gene was confirmed through the sequencing process for some selected fragments, sequences without mutations in active sites were observed, making this plasmid an acceptable candidate for further testing to produce the Pfu polymerase enzyme.