Evidence map›Paper›PMID 37046080›Full record

ArticleCurrent microbiology2023

Enhancing Enzyme Activity and Thermostability of Bacillus amyloliquefaciens Chitosanase BaCsn46A Through Saturation Mutagenesis at Ser196.

Guo Jing, Gao Wenjun, Wang Yi, Xu Kepan, Luo Wen, Hong Tingting, Cai Zhiqiang

Abstract read
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In one paragraph

Article in Current microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

1 citing paper in PubMed, 3 citations in OpenAlex.

  1. Improved Enzymatic Properties of Chitosanase CsnMY002 fromInternational journal of molecular sciences · 2025
    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

7 authors at 1 institution in 1 country.

Guo JingLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China.
Gao WenjunLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China.
Wang YiLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China.
Xu KepanLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China.
Luo WenLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China.
Hong TingtingLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China.
Cai ZhiqiangLaboratory of Applied Microbiology, School of Biological and Food Engineering, Changzhou University, Changzhou Jiangsu, 213164, China. zhqcai@cczu.edu.cn.
Changzhou University · CN

Funding

applied basic Research Program of Changzhou CJ20220080Key Research and Development Program of Sichuan Province 2019JZZY020605
6 · The paper itself

Abstract

Chitosanase plays an important role in chitooligosaccharides (COS) production. We found that the chitosanase (BaCsn46A) of Bacillus amyloliquefacien was a good candidate for chitosan hydrolysis of COS. In order to further improve the enzyme properties of BaCsn46A, the S196 located near the active center was found to be a critical site impacts on enzyme properties by sequence alignment analysis. Herein, saturation mutation was carried out to study role of 196 site on BaCsn46A catalytic function. Compared with WT, the specific enzyme activity of S196A increased by 118.79%, and the thermostability of S196A was much higher than WT. In addition, we found that the enzyme activity of S196P was 2.41% of that of WT, indicating that the type of amino acid in 196 site could significant affect the catalytic activity and thermostability of BaCsn46A. After molecular docking analysis we found that the increase in hydrogen bonds and decrease in unfavorable bonds interacting with the substrate were the main reason for the change of enzyme properties which is valuable for future studies on Bacillus species chitosanase.

Indexed as

BacillusBacillus amyloliquefaciensChitosanChitinGlycoside HydrolasesHydrolysisMolecular Docking SimulationMutagenesisChitinChitosanchitosanaseGlycoside Hydrolases

Identifiers

PMID37046080
OpenAlexW4365140060

What OpenQuestion holds

Textmetadata
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.