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May 2, 2026

Exploring chromosomal position effects for predictable tuning of metabolic pathways in yeast.

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Authors

HHHaosen HongYCYuxin CaiYWYì Wáng

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Overview

Randomized trial explores metabolic pathway optimization in yeast, suggesting chromosomal integration site selection enhances expression control.

Key Points

  • This research aims to understand how chromosomal position affects gene expression and to use this for optimizing metabolic pathways in yeast.
  • Quantified gene expression output of 98 intergenic regions in Saccharomyces cerevisiae using fluorescent reporters.
  • Developed Yeast IGR Prophet (YeIP) to predict expression based on genomic context.
  • Constructed a genome-wide atlas of expression hotspots and coldspots for optimizing gene pathways.
  • Optimized transcriptional stoichiometry of a three-gene lycopene pathway through strategic integration site selection.
  • Achieved improved gene expression without altering promoters or gene copy numbers.
  • Demonstrated that chromosomal integration sites can serve as programmable regulatory elements.

Cite This Study

Hong et al. (2026) studied this question.

synapsesocial.com/papers/69f594ca71405d493afffa00https://doi.org/10.1093/nar/gkag401
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