Related Experiment Video
Updated: Jan 26, 2026

The Zebrafish Tol2 System: A Modular and Flexible Gateway-Based Transgenesis Approach
Published on: November 30, 2022
From Gateway to MultiSite Gateway in one recombination event
Enrico Magnani1, Linnea Bartling, Sarah Hake
1Department of Plant and Microbial Biology, University of California, Berkeley, California 94720, USA. emagnani@berkeley.edu
This study introduces a new tool to expand the applications of MultiSite Gateway cloning. The pDONR-R4-R3 construct converts existing Gateway vectors, making this versatile cloning technology more accessible for diverse biological research.
Area of Science:
- Molecular Biology
- Biotechnology
- Genetic Engineering
Background:
- Invitrogen Gateway technology utilizes site-specific recombination for directional DNA cloning.
- While single-site Gateway vectors are abundant, MultiSite Gateway has limited vector options and applications.
Purpose of the Study:
- To broaden the utility of MultiSite Gateway technology for various biological applications.
- To increase the accessibility of MultiSite Gateway cloning.
Main Methods:
- Development of a novel construct, pDONR-R4-R3.
- Utilizing a single recombination reaction to convert standard Gateway destination vectors into MultiSite Gateway vectors.
Main Results:
- The pDONR-R4-R3 construct successfully converts available Gateway destination vectors to MultiSite Gateway vectors.
- The conversion process preserves the utility of pre-existing DNA fragments for fusion applications.
Conclusions:
- The developed tool significantly enhances the accessibility and expands the applications of MultiSite Gateway technology.
- This innovation leverages existing Gateway vector features for broader biological research.
Related Concept Videos
Conservative Site-specific Recombination and Phase Variation
The recognition sites for Cre recombinase called LoxP...
Recombinant DNA
Viral Recombination
Homologous Recombination
Homologous Recombination
Overview of Transposition and Recombination

