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Updated: May 30, 2026

Site-specific Bacterial Chromosome Engineering: ΦC31 Integrase Mediated Cassette Exchange (IMCE)
08:21

Site-specific Bacterial Chromosome Engineering: ΦC31 Integrase Mediated Cassette Exchange (IMCE)

Published on: March 16, 2012

Bacterial genome reengineering.

Jindan Zhou1, Kenneth E Rudd

  • 1Department of Electrical and Computer Engineering, University of Miami, Coral Gables, FL, USA.

Methods in Molecular Biology (Clifton, N.J.)
|August 5, 2011
PubMed
Summary
This summary is machine-generated.

PrimerPair is a web tool that designs DNA primers for Escherichia coli genome engineering. It ensures accurate gene targeting for cloning and recombineering, improving experimental reliability.

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09:16

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Published on: March 25, 2020

Area of Science:

  • Genomics
  • Molecular Biology
  • Bioinformatics

Background:

  • Genome engineering requires precise DNA manipulation.
  • Accurate gene identification and primer design are critical for success.
  • Existing tools may lack integrated quality control for model organisms.

Purpose of the Study:

  • To develop a web application (PrimerPair) for designing DNA primers for genome engineering in Escherichia coli K-12.
  • To integrate a primer design tool with a curated model organism database (EcoGene) for enhanced quality control.
  • To facilitate genome reengineering strategies using in vitro cloning and in vivo recombineering.

Main Methods:

  • The PrimerPair web application queries the EcoGene database for accurate gene annotations.
  • It designs paired DNA primers flanking protein and RNA genes, considering start/stop codons and avoiding pseudogenes/IS elements.
  • Integrity checks are performed to prevent unwanted double deletions during chromosomal modifications.

Main Results:

  • PrimerPair successfully generates sets of paired DNA sequences for targeted gene amplification.
  • Protocols demonstrate successful cloning and expression of single genes and multiple periplasmic proteins.
  • Analysis revealed a novel GHOLE motif in ribosome binding sites of translationally coupled genes, distinct from standard Shine-Dalgarno sequences.

Conclusions:

  • PrimerPair enhances genome engineering reliability through integrated primer design and quality control.
  • The tool facilitates complex genome manipulation projects in Escherichia coli.
  • The discovery of the GHOLE motif provides new insights into bacterial gene regulation and translation initiation.