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Updated: May 17, 2026

The Green Monster Process for the Generation of Yeast Strains Carrying Multiple Gene Deletions

The Green Monster Process for the Generation of Yeast Strains Carrying Multiple Gene Deletions

Published on: December 15, 2012

High-efficiency yeast artificial chromosome fragmentation vectors.

W J Pavan¹, P Hieter, D Sears

¹Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205.

|September 30, 1991

Summary

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New chromosome fragmentation vectors (CFVs) improve the efficiency of creating DNA deletion derivatives from yeast artificial chromosomes (YACs). These enhanced CFVs target both Alu and LINE elements for more effective fragmentation.

Area of Science:

Genetics
Molecular Biology
Genomics

Background:

Yeast artificial chromosomes (YACs) are crucial for cloning large human DNA fragments.
Chromosome fragmentation vectors (CFVs) enable the creation of deletion derivatives from YACs.
Existing CFVs utilize homologous recombination with Alu elements for YAC fragmentation.

Purpose of the Study:

To develop novel CFVs for enhanced generation of YAC deletion derivatives.
To improve the efficiency of DNA fragmentation and derivative recovery.

Main Methods:

Development of new CFVs designed to target both Alu and LINE repetitive DNA elements.
Utilizing homologous recombination for targeted insertion of telomere sequences into YACs.
Assessing the efficiency of deletion derivative recovery compared to previous CFVs.

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Last Updated: May 17, 2026

The Green Monster Process for the Generation of Yeast Strains Carrying Multiple Gene Deletions

The Green Monster Process for the Generation of Yeast Strains Carrying Multiple Gene Deletions

Published on: December 15, 2012

Directed Evolution Method in Saccharomyces cerevisiae: Mutant Library Creation and Screening

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Main Results:

The new CFVs demonstrated a ten- to 20-fold increase in the recovery of deletion derivatives.
Targeting both Alu and LINE elements significantly enhanced fragmentation efficiency.
Successful generation of YAC deletion derivatives with improved yield.

Conclusions:

The newly developed CFVs offer a more efficient method for generating human DNA deletion derivatives from YACs.
These vectors represent a significant advancement in YAC manipulation for genetic studies.
Enhanced targeting of repetitive elements improves the utility of CFVs in genomics research.