Evidence map›Paper›PMID 25757029›Full record

ArticleMicrobial biotechnology2015

Overexpression and optimization of glutamate decarboxylase in Lactobacillus plantarum Taj-Apis362 for high gamma-aminobutyric acid production.

Naser Tajabadi, Ali Baradaran, Afshin Ebrahimpour, Raha A Rahim, Fatimah A Bakar, Mohd Yazid A Manap, Abdulkarim S Mohammed, Nazamid Saari

Open access · goldAbstract read
In one paragraph

Article in Microbial biotechnology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Biosynthesis of Gamma-Aminobutyric Acid (GABA) byCurrent issues in molecular biology · 2023
    Review
  9. Review
  10. Review
  11. Article
  12. Potentiality of Self-ClonedFoods (Basel, Switzerland) · 2020
    Article
  13. Review
  14. AccumulationFoods (Basel, Switzerland) · 2019
    Article
  15. Article
  16. Identification of new glutamate decarboxylases fromJournal of biological engineering · 2019
    Article
  17. Review
  18. Frontiers in microbiology · 2016
    Article
  19. 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 2 institutions in 2 countries.

Naser TajabadiDepartment of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Ali BaradaranDepartment of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Afshin EbrahimpourDepartment of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Raha A RahimDepartment of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Fatimah A BakarDepartment of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Mohd Yazid A ManapDepartment of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Abdulkarim S MohammedDepartment of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Nazamid SaariDepartment of Food Science, Faculty of Food Science and Technology, University Putra Malaysia, Serdang, Selangor, 43400, Malaysia.
Universiti Putra Malaysia · MYAgricultural Biotechnology Research Institute of Iran · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gamma-aminobutyric acid (GABA) is an important bioactive compound biosynthesized by microorganisms through decarboxylation of glutamate by glutamate decarboxylase (GAD). In this study, a full-length GAD gene was obtained by cloning the template deoxyribonucleic acid to pTZ57R/T vector. The open reading frame of the GAD gene showed the cloned gene was composed of 1410 nucleotides and encoded a 469 amino acids protein. To improve the GABA-production, the GAD gene was cloned into pMG36e-LbGAD, and then expressed in Lactobacillus plantarum Taj-Apis362 cells. The overexpression was confirmed by SDS-PAGE and GAD activity, showing a 53 KDa protein with the enzyme activity increased by sevenfold compared with the original GAD activity. The optimal fermentation conditions for GABA production established using response surface methodology were at glutamic acid concentration of 497.973 mM, temperature 36°C, pH 5.31 and time 60 h. Under the conditions, maximum GABA concentration obtained (11.09 mM) was comparable with the predicted value by the model at 11.23 mM. To our knowledge, this is the first report of successful cloning (clone-back) and overexpression of the LbGAD gene from L. plantarum to L. plantarum cells. The recombinant Lactobacillus could be used as a starter culture for direct incorporation into a food system during fermentation for production of GABA-rich products.

Indexed as

Cloning, MolecularElectrophoresis, Polyacrylamide Gelgamma-Aminobutyric AcidGenetic VectorsGlutamate DecarboxylaseHydrogen-Ion ConcentrationLactiplantibacillus plantarumMolecular WeightOpen Reading FramesPlasmidsTemperaturegamma-Aminobutyric AcidGlutamate Decarboxylase

Identifiers

PMID25757029
PMCPMC4476817
OpenAlexW1557652657

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.