TA CloningTA Cloning exploits the terminal transferase activity of some DNA polymerases. In TA Cloning Taq polymerase adds a 3'-A overhang to each end of the PCR product. TA Cloning makes it possible to clone the PCR product into a cloning vector with 3'-T overhangs. During TA Cloning the PCR products with dA overhang are mixed in high proportion with the vector. The complementary overhangs of T vector and PCR product are then ligated using T4 DNA ligase.
"TA cloning" is a popular method of cloning without the use of restriction enzymes; instead, PCR products are amplified with only Taq DNA polymerase and other polymerases. These polymerases lack 5'-3' proofreading activity and add an adenosine triphosphate residue to the 3' ends of the double-stranded PCR products. Such PCR amplified products can thus be cloned in a linearized vector that has complementary 3' thymidine triphosphate overhangs.
A recently described Quick Assemble PCR cloning protocol has been used to improve TA cloning. The new 2-day PCR-based method can be used to generate both circularized and linear final assembled products. The protocol circumvents the use of DNA ligase. The PCR-based protocol uses a TA cloning vector as the template for the linear vector backbone demonstrating the ability to improve this technique.
from Zuo and Rabie in Curr. Issues Mol. Biol. 12: 11-16
- Epigenetics: Current Research and Emerging Trends
- Next-generation Sequencing: Current Technologies and Applications
- Genome Analysis: Current Procedures and Applications
- Brain-eating Amoebae
- Foot-and-Mouth Disease Virus
- Microbial Biodegradation
- MALDI-TOF Mass Spectrometry in Microbiology
- Aspergillus and Penicillium in the Post-genomic Era
- The Bacteriocins
- Omics in Plant Disease Resistance
- Climate Change and Microbial Ecology
- Biofilms in Bioremediation
- Gas Plasma Sterilization in Microbiology
- Virus Evolution
- Aquatic Biofilms
- Thermophilic Microorganisms
- Flow Cytometry in Microbiology
- Probiotics and Prebiotics
- Corynebacterium glutamicum
- Advanced Vaccine Research Methods for the Decade of Vaccines