Evidence map›Paper›PMID 36829220›Full record

ArticleBiotechnology for biofuels and bioproducts2023

Systems metabolic engineering of Escherichia coli for hyper-production of 5‑aminolevulinic acid.

Wei Pu, Jiuzhou Chen, Yingyu Zhou, Huamin Qiu, Tuo Shi, Wenjuan Zhou, Xuan Guo, Ningyun Cai, Zijian Tan, Jiao Liu and 4 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Biotechnology for biofuels and bioproducts, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
8.6field-weighted citation impact, top 2% 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

14 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Microbial production of xanthohumol driven by synthetic biology approaches.World journal of microbiology & biotechnology · 2026
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  4. Metabolic engineering ofApplied and environmental microbiology · 2026
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  7. Combined metabolic and enzymatic engineering forSynthetic and systems biotechnology · 2025
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  11. Review
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  14. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 1 country.

Wei Pu *Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Jiuzhou Chen *Key Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Yingyu ZhouKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Huamin QiuKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Tuo ShiKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Wenjuan ZhouKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Xuan GuoKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Ningyun CaiKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Zijian TanKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Jiao LiuKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Jinhui FengKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Yu WangKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China. wang_y@tib.cas.cn.
Ping ZhengKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China. zheng_p@tib.cas.cn.
Jibin SunKey Laboratory of Systems Microbial Biotechnology, Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, 300308, China.
Tianjin Institute of Industrial Biotechnology · CNChinese Academy of Sciences · CNUniversity of Chinese Academy of Sciences · CN

Funding

Key R&D Program of Shandong Province 2021CXGC010602National Key Research and Development Program of China 2018YFA0901400National Natural Science Foundation of China 32000023National Natural Science Foundation of China 32222004the Youth Innovation Promotion Association of Chinese Academy of Sciences 2021177Tianjin "Project+Team" Key Training Program XC202038Tianjin Synthetic Biotechnology Innovation Capacity Improvement Project TSBICIP-KJGG-005
6 · The paper itself

Abstract

background5-Aminolevulinic acid (5-ALA) is a promising biostimulant, feed nutrient, and photodynamic drug with wide applications in modern agriculture and therapy. Although microbial production of 5-ALA has been improved realized by using metabolic engineering strategies during the past few years, there is still a gap between the present production level and the requirement of industrialization.

resultsIn this study, pathway, protein, and cellular engineering strategies were systematically employed to construct an industrially competitive 5-ALA producing Escherichia coli. Pathways involved in precursor supply and product degradation were regulated by gene overexpression and synthetic sRNA-based repression to channel metabolic flux to 5-ALA biosynthesis. 5-ALA synthase was rationally engineered to release the inhibition of heme and improve the catalytic activity. 5-ALA transport and antioxidant defense systems were targeted to enhance cellular tolerance to intra- and extra-cellular 5-ALA. The final engineered strain produced 30.7 g/L of 5-ALA in bioreactors with a productivity of 1.02 g/L/h and a yield of 0.532 mol/mol glucose, represent a new record of 5-ALA bioproduction.

conclusionsAn industrially competitive 5-ALA producing E. coli strain was constructed with the metabolic engineering strategies at multiple layers (protein, pathway, and cellular engineering), and the strategies here can be useful for developing industrial-strength strains for biomanufacturing.

Indexed as

5‑Aminolevulinic acidAntioxidant defense systemEscherichia coliSynthetic sRNASystems metabolic engineering

Identifiers

PMID36829220
PMCPMC9951541
OpenAlexW4321790565

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.