Color selection with a hygromycin-resistance-based Escherichia coli-mycobacterial shuttle vector
Related Experiment Video
Updated: Nov 6, 2026

Genetic Modification of Cyanobacteria by Conjugation Using the CyanoGate Modular Cloning Toolkit
Published on: October 31, 2019
1Department of Molecular Microbiology and Immunology, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD 21205, USA.
Abstract:
Hygromycin-resistance (HyR)-based Escherichia coli-mycobacterial shuttle plasmids have high efficiencies of transformation and a broad mycobacterial host range. We have introduced a lacZ alpha (encoding the alpha-polypeptide fragment of beta-galactosidase (beta Gal))-multiple cloning site cassette into a HyR-based shuttle vector to generate a plasmid with nine unique cloning sites and the added feature of beta Gal color selection in appropriate E. coli host strains.
