Evidence map›Paper›PMID 25615972›Full record

ArticleActa crystallographica. Section F, Structural biology communications2015

Three-dimensional structure of a variant `Termamyl-like' Geobacillus stearothermophilus α-amylase at 1.9 Å resolution.

Wendy A Offen, Anders Viksoe-Nielsen, Torben V Borchert, Keith S Wilson, Gideon J Davies

Open access · bronzeAbstract read
In one paragraph

Article in Acta crystallographica. Section F, Structural biology communications, 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
2.0field-weighted citation impact, top 16% 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, 30 citations in OpenAlex.

  1. Article
  2. Crystal Structure of 4,6-α-Glucanotransferase GtfC-ΔC from ThermophilicJournal of agricultural and food chemistry · 2022
    Article
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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

5 authors at 2 institutions in 2 countries.

Wendy A OffenYork Structural Biology Laboratory, Department of Chemistry, The University of York, York YO10 5DD, England.
Anders Viksoe-NielsenNovozymes A/S, Krogshoejvej 36, 2880 Bagsvaerd, Denmark.
Torben V BorchertNovozymes A/S, Krogshoejvej 36, 2880 Bagsvaerd, Denmark.
Keith S WilsonYork Structural Biology Laboratory, Department of Chemistry, The University of York, York YO10 5DD, England.
Gideon J DaviesYork Structural Biology Laboratory, Department of Chemistry, The University of York, York YO10 5DD, England.
University of York · GBNovozymes (Denmark) · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The enzyme-catalysed degradation of starch is central to many industrial processes, including sugar manufacture and first-generation biofuels. Classical biotechnological platforms involve steam explosion of starch followed by the action of endo-acting glycoside hydrolases termed α-amylases and then exo-acting α-glucosidases (glucoamylases) to yield glucose, which is subsequently processed. A key enzymatic player in this pipeline is the `Termamyl' class of bacterial α-amylases and designed/evolved variants thereof. Here, the three-dimensional structure of one such Termamyl α-amylase variant based upon the parent Geobacillus stearothermophilus α-amylase is presented. The structure has been solved at 1.9 Å resolution, revealing the classical three-domain fold stabilized by Ca2+ and a Ca2+-Na+-Ca2+ triad. As expected, the structure is similar to the G. stearothermophilus α-amylase but with main-chain deviations of up to 3 Å in some regions, reflecting both the mutations and differing crystal-packing environments.

Indexed as

alpha-AmylasesAmino Acid SequenceBacterial ProteinsCatalytic DomainCrystallography, X-RayGeobacillus stearothermophilusHydrogen BondingModels, MolecularProtein Structure, SecondaryStructural Homology, Proteinalpha-AmylasesBacterial ProteinstermamylamylaseGeobacillus stearothermophilusTermamyl

Identifiers

PMID25615972
PMCPMC4304751
OpenAlexW1965530990

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.