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Updated: Jan 26, 2026

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning
Published on: February 5, 2021
Rapid Assembly of gRNA Arrays via Modular Cloning in Yeast
Nicholas S McCarty1,2, William M Shaw2,3, Tom Ellis2,3
1Bioengineering , California Institute of Technology , Pasadena , California 91125 , United States.
Abstract:
CRISPR is a versatile technology for genomic editing and regulation, but the expression of multiple gRNAs in S. cerevisiae has thus far been limited. We present here a simple extension to the Yeast MoClo Toolkit, which enables the rapid assembly of gRNA arrays using a minimal set of parts. Using a dual-PCR, Type IIs restriction enzyme Golden Gate assembly approach, at least 12 gRNAs can be assembled and expressed from a single transcriptional unit. We demonstrate that these gRNA arrays can stably regulate gene expression in a synergistic manner via dCas9-mediated repression. This approach expands the number of gRNAs that can be expressed in this model organism and may enable the versatile editing or transcriptional regulation of a greater number of genes in vivo.
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