Molecular cloning using polymerase chain reaction, an educational guide for cellular engineering.

Area of Science:

• Molecular Biology
• Biotechnology
• Cellular Engineering

Background:

• Molecular cloning, particularly using recombinant DNA, has revolutionized biological sciences and is increasingly applied in cellular engineering.
• Polymerase chain reaction (PCR) is a critical tool in molecular cloning, with advancements in reagents and software necessitating updated protocols.
• Existing protocols often lack a comprehensive approach, from initial primer design to final gene expression assessment.

Purpose of the Study:

• To provide a concise and comprehensive methodology paper detailing all steps of PCR cloning.
• To offer a practical example for applying PCR in gene cloning for researchers.
• To serve as a roadmap for researchers focusing on in vitro and in vivo aspects of cellular engineering.

Main Methods:

• Primer design incorporating restriction enzyme sites for gene amplification via PCR.
• PCR amplification of target genes, exemplified by the tdTomato fluorescent gene.
• Cloning of PCR products into plasmids for sequencing and subsequent analysis using free web-based software.

Main Results:

• Demonstration of PCR primer design with embedded restriction enzyme sites for efficient cloning.
• Successful amplification and cloning of the tdTomato fluorescent gene.
• Introduction of practical criteria for restriction enzyme selection and PCR primer design.
• Validation of successful cloning through fluorescent gene expression in murine target cells.

Conclusions:

• A comprehensive PCR-based cloning protocol with practical tips has been successfully introduced.
• The methodology serves as a valuable guide for researchers aiming to utilize PCR cloning efficiently.
• This protocol supports researchers in cellular engineering by streamlining the cloning process for functional studies.