Evidence map›Paper›PMID 22839502›Full record

ArticleBiotechnology for biofuels2012

PGASO: A synthetic biology tool for engineering a cellulolytic yeast.

Jui-Jen Chang, Cheng-Yu Ho, Feng-Ju Ho, Tsung-Yu Tsai, Huei-Mien Ke, Christine H-T Wang, Hsin-Liang Chen, Ming-Che Shih, Chieh-Chen Huang, Wen-Hsiung Li

Open access · goldAbstract read
In one paragraph

Article in Biotechnology for biofuels, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 49 citations in OpenAlex.

  1. Creating a large designer cellulosome in yeast to boost ethanol production.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. High-Purity Bioactive Ingredient-3Antioxidants (Basel, Switzerland) · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Constructing a yeast to express the largest cellulosome complex on the cell surface.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Biological Parts forFrontiers in bioengineering and biotechnology · 2019
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Jui-Jen ChangBiodiversity Research Center, Academia Sinica, Taipei, 115, Taiwan. mcshih@gate.sinica.edu.tw.
Cheng-Yu Ho
Feng-Ju Ho
Tsung-Yu Tsai
Huei-Mien Ke
Christine H-T Wang
Hsin-Liang Chen
Ming-Che Shih
Chieh-Chen Huang
Wen-Hsiung Li
Biodiversity Research Center, Academia Sinica · TWNational Chung Hsing University · TWAgricultural Biotechnology Research Center, Academia Sinica · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo achieve an economical cellulosic ethanol production, a host that can do both cellulosic saccharification and ethanol fermentation is desirable. However, to engineer a non-cellulolytic yeast to be such a host requires synthetic biology techniques to transform multiple enzyme genes into its genome.

resultsA technique, named Promoter-based Gene Assembly and Simultaneous Overexpression (PGASO), that employs overlapping oligonucleotides for recombinatorial assembly of gene cassettes with individual promoters, was developed. PGASO was applied to engineer Kluyveromycesmarxianus KY3, which is a thermo- and toxin-tolerant yeast. We obtained a recombinant strain, called KR5, that is capable of simultaneously expressing exoglucanase and endoglucanase (both of Trichodermareesei), a beta-glucosidase (from a cow rumen fungus), a neomycin phosphotransferase, and a green fluorescent protein. High transformation efficiency and accuracy were achieved as ~63% of the transformants was confirmed to be correct. KR5 can utilize beta-glycan, cellobiose or CMC as the sole carbon source for growth and can directly convert cellobiose and beta-glycan to ethanol.

conclusionsThis study provides the first example of multi-gene assembly in a single step in a yeast species other than Saccharomyces cerevisiae. We successfully engineered a yeast host with a five-gene cassette assembly and the new host is capable of co-expressing three types of cellulase genes. Our study shows that PGASO is an efficient tool for simultaneous expression of multiple enzymes in the kefir yeast KY3 and that KY3 can serve as a host for developing synthetic biology tools.

Identifiers

PMID22839502
PMCPMC3462719
OpenAlexW2143947301

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.