Evidence map›Paper›PMID 26289411›Full record

ArticleScientific reports2015

Doubling Power Output of Starch Biobattery Treated by the Most Thermostable Isoamylase from an Archaeon Sulfolobus tokodaii.

Kun Cheng, Fei Zhang, Fangfang Sun, Hongge Chen, Y-H Percival Zhang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

7 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Biotechnology of extremely thermophilic archaea.FEMS microbiology reviews · 2018
    Review
  6. Article
  7. ATP regulation in bioproduction.Microbial cell factories · 2015
    Review
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

5 authors at 3 institutions in 2 countries.

Kun ChengCollege of Life Sciences, Henan Agricultural University, 95 Wenhua Road, Zhengzhou, 450002, China.
Fei ZhangCell Free Bioinnovations Inc. 1800 Kraft Drive, Suite 222, Blacksburg, Virginia 24060, USA.
Fangfang SunCell Free Bioinnovations Inc. 1800 Kraft Drive, Suite 222, Blacksburg, Virginia 24060, USA.
Hongge ChenCollege of Life Sciences, Henan Agricultural University, 95 Wenhua Road, Zhengzhou, 450002, China.
Y-H Percival ZhangBiological Systems Engineering Department, Virginia Tech, 304 Seitz Hall, Blacksburg, Virginia 24061, USA.
Chinese Academy of Sciences · CNHenan Agricultural University · CNVirginia Tech · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biobattery, a kind of enzymatic fuel cells, can convert organic compounds (e.g., glucose, starch) to electricity in a closed system without moving parts. Inspired by natural starch metabolism catalyzed by starch phosphorylase, isoamylase is essential to debranch alpha-1,6-glycosidic bonds of starch, yielding linear amylodextrin - the best fuel for sugar-powered biobattery. However, there is no thermostable isoamylase stable enough for simultaneous starch gelatinization and enzymatic hydrolysis, different from the case of thermostable alpha-amylase. A putative isoamylase gene was mined from megagenomic database. The open reading frame ST0928 from a hyperthermophilic archaeron Sulfolobus tokodaii was cloned and expressed in E. coli. The recombinant protein was easily purified by heat precipitation at 80 (o)C for 30 min. This enzyme was characterized and required Mg(2+) as an activator. This enzyme was the most stable isoamylase reported with a half lifetime of 200 min at 90 (o)C in the presence of 0.5 mM MgCl2, suitable for simultaneous starch gelatinization and isoamylase hydrolysis. The cuvett-based air-breathing biobattery powered by isoamylase-treated starch exhibited nearly doubled power outputs than that powered by the same concentration starch solution, suggesting more glucose 1-phosphate generated.

Indexed as

Bioelectric Energy SourcesElectricityTemperatureAmino Acid SequenceAmylopectinBiocatalysisCatalytic DomainConserved SequenceDextrinsElectrophoresis, Polyacrylamide GelEnzyme StabilityHydrolysisIodineIsoamylaseMolecular Sequence DataStarchamylodextrinsAmylopectinDextrinsIodineIsoamylaseStarch

Identifiers

PMID26289411
PMCPMC4542469
OpenAlexW2416171759

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.