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Reproductive Cloning01:27

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Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
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ATP-binding cassette or ABC transporter is the largest superfamily of integral membrane proteins. The transporters have transmembrane-binding domains (TMDs) and nucleotide-binding domains (NBDs). The TMDs are specific to their substrates, whereas the NBDs are similar to engines that complete ATP hydrolysis to complete the substrate transport. They can be full transporters consisting of two TMDs and NBDs, half transporters with one TMD and NBD, while some encoded with a single TMD or NBD are...
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Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
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Related Experiment Video

Updated: Jan 28, 2026

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning
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ABC cloning: An efficient, simple, and rapid restriction/ligase-free method.

Samir El Qaidi1, Philip R Hardwidge1

  • 1College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.

Methodsx
|March 6, 2019
PubMed
Summary
This summary is machine-generated.

A new Polymerase Chain Reaction (PCR)-based method, ABC cloning, efficiently combines three DNA fragments into a vector for gene cloning. This restriction-free technique offers a faster and more effective alternative for molecular biology research.

Keywords:
ABC cloning methodOverlap PCRRecombinant plasmidTransformation

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Area of Science:

  • Molecular Biology
  • Biotechnology
  • Genetics

Background:

  • DNA cloning is essential for gene function studies.
  • Traditional restriction enzyme cloning and other restriction-free methods are common.
  • There is a need for more rapid and efficient cloning techniques.

Purpose of the Study:

  • To introduce a novel Polymerase Chain Reaction (PCR)-based DNA cloning method named ABC cloning.
  • To provide a faster and more efficient alternative to existing cloning techniques.

Main Methods:

  • ABC cloning utilizes PCR to assemble three overlapping DNA fragments.
  • The combined DNA fragments are inserted into a recombinant vector.
  • The method requires only a thermostable DNA polymerase.

Main Results:

  • ABC cloning successfully creates a recombinant vector from three DNA fragments.
  • The method is more rapid and efficient compared to previous techniques.
  • The resulting vector is ready for immediate transformation into competent cells.

Conclusions:

  • ABC cloning is a rapid, efficient, and restriction-free method for DNA cloning.
  • This PCR-based technique simplifies the process of gene cloning.
  • It offers a valuable alternative for molecular biology applications.