Evidence map›Paper›PMID 27186489›Full record

ArticleSpringerPlus2016

A novel family VIII carboxylesterase hydrolysing third- and fourth-generation cephalosporins.

Jeong Ho Jeon, Hyun Sook Lee, Jung Hun Lee, Bon-Sung Koo, Chang-Muk Lee, Sang Hee Lee, Sung Gyun Kang, Jung-Hyun Lee

Open access · diamondAbstract read
In one paragraph

Article in SpringerPlus, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Structural and biochemical characterization ofProcess biochemistry (Barking, London, England) · 2023
    Article
  4. β-Lactams from the Ocean.Marine drugs · 2023
    Review
  5. Article
  6. Class C β-Lactamases: Molecular Characteristics.Clinical microbiology reviews · 2022
    Review
  7. Article
  8. 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

8 authors at 4 institutions in 1 country.

Jeong Ho JeonMarine Biotechnology Research Division, Korea Institute of Ocean Science and Technology, Ansan, 15627 Republic of Korea ; National Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, 116 Myongjiro, Yongin, Gyeonggido, 17058 Republic of Korea.
Hyun Sook LeeMarine Biotechnology Research Division, Korea Institute of Ocean Science and Technology, Ansan, 15627 Republic of Korea ; Department of Marine Biotechnology, University of Science and Technology, Daejeon, 34113 Republic of Korea.
Jung Hun LeeNational Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, 116 Myongjiro, Yongin, Gyeonggido, 17058 Republic of Korea.
Bon-Sung KooDepartment of Agricultural Biotechnology, National Academy of Agricultural Science, RDA, Jeonju, 54875 Republic of Korea.
Chang-Muk LeeDepartment of Agricultural Biotechnology, National Academy of Agricultural Science, RDA, Jeonju, 54875 Republic of Korea.
Sang Hee LeeNational Leading Research Laboratory of Drug Resistance Proteomics, Department of Biological Sciences, Myongji University, 116 Myongjiro, Yongin, Gyeonggido, 17058 Republic of Korea.
Sung Gyun KangMarine Biotechnology Research Division, Korea Institute of Ocean Science and Technology, Ansan, 15627 Republic of Korea ; Department of Marine Biotechnology, University of Science and Technology, Daejeon, 34113 Republic of Korea.
Jung-Hyun LeeMarine Biotechnology Research Division, Korea Institute of Ocean Science and Technology, Ansan, 15627 Republic of Korea ; Department of Marine Biotechnology, University of Science and Technology, Daejeon, 34113 Republic of Korea.
Korea Institute of Ocean Science and Technology · KRKorea University of Science and Technology · KRMyongji University · KRNational Academy of Agricultural Science · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A metagenomic library was constructed from a soil sample of spindle tree-rhizosphere. From this library, one clone with esterase activity was selected. The sequence analysis revealed an open reading frame (EstSTR1) encoded protein of 390 amino acids. EstSTR1 is a family VIII carboxylesterase and retains the S-X-X-K motif conserved in both family VIII carboxylesterases and class C β-lactamases. The estSTR1 gene was overexpressed in E. coli and the recombinant protein was purified by purified by metal chelating affinity chromatography and size-exclusion chromatography. EstSTR1 hydrolysed p-nitrophenyl esters, exhibited the highest activity toward p-nitrophenyl butyrate. Furthermore, EstSTR1 could hydrolyse third- and fourth-generation cephalosporins (cefotaxime and cefepime) as well as first-generation cephalosporin (cephalothin). Site-directed mutagenesis studies revealed that a catalytic residue, Ser71, of EstSTR1 plays an essential role in hydrolysing both antibiotics and p-nitrophenyl esters. We demonstrate that a metagenome-derived carboxylesterase displays β-lactam-hydrolysing activities toward third- and fourth-generation cephalosporins.

Indexed as

CarboxylesteraseExtended-spectrum cephalosporinsMetagenomeβ-Lactamase

Identifiers

PMID27186489
PMCPMC4844572
OpenAlexW2344884591

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.