Evidence map›Paper›PMID 37945666›Full record

ArticleCommunications biology2023

Computational design of highly efficient thermostable MHET hydrolases and dual enzyme system for PET recycling.

Jun Zhang, Hongzhao Wang, Zhaorong Luo, Zhenwu Yang, Zixuan Zhang, Pengyu Wang, Mengyu Li, Yi Zhang, Yue Feng, Diannan Lu and 1 more

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
5.8field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.

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  15. Disordered N-termini enhance the thermostability of SGNH-hydrolase family polyesterases.Protein science : a publication of the Protein Society · 2026
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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

11 authors at 2 institutions in 1 country.

Jun Zhang *College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
Hongzhao Wang *College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
Zhaorong Luo *Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
Zhenwu YangCollege of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
Zixuan ZhangCollege of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.ORCID 0000-0002-6333-6834
Pengyu WangDepartment of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
Mengyu LiCollege of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
Yi ZhangBeijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.ORCID 0000-0002-8702-6005
Yue FengBeijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.ORCID 0000-0002-1576-1385
Diannan LuDepartment of Chemical Engineering, Tsinghua University, Beijing, 100084, China. ludiannan@tsinghua.edu.cn.ORCID 0000-0001-5993-5626
Yushan ZhuCollege of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China. zhuys@mail.buct.edu.cn.ORCID 0000-0003-4332-4243
Beijing University of Chemical Technology · CNTsinghua University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently developed enzymes for the depolymerization of polyethylene terephthalate (PET) such as FAST-PETase and LCC-ICCG are inhibited by the intermediate PET product mono(2-hydroxyethyl) terephthalate (MHET). Consequently, the conversion of PET enzymatically into its constituent monomers terephthalic acid (TPA) and ethylene glycol (EG) is inefficient. In this study, a protein scaffold (1TQH) corresponding to a thermophilic carboxylesterase (Est30) was selected from the structural database and redesigned in silico. Among designs, a double variant KL-MHETase (I171K/G130L) with a similar protein melting temperature (67.58 °C) to that of the PET hydrolase FAST-PETase (67.80 °C) exhibited a 67-fold higher activity for MHET hydrolysis than FAST-PETase. A fused dual enzyme system comprising KL-MHETase and FAST-PETase exhibited a 2.6-fold faster PET depolymerization rate than FAST-PETase alone. Synergy increased the yield of TPA by 1.64 fold, and its purity in the released aromatic products reached 99.5%. In large reaction systems with 100 g/L substrate concentrations, the dual enzyme system KL36F achieved over 90% PET depolymerization into monomers, demonstrating its potential applicability in the industrial recycling of PET plastics. Therefore, a dual enzyme system can greatly reduce the reaction and separation cost for sustainable enzymatic PET recycling.

Indexed as

HydrolasesPolyethylene TerephthalatesCarboxylesteraseHydrolysisPlasticsCarboxylesteraseHydrolasesPlasticsPolyethylene Terephthalates

Identifiers

PMID37945666
PMCPMC10636135
OpenAlexW4388530242

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.