Evidence map›Paper›PMID 10919790›Full record

ArticleApplied and environmental microbiology2000

Comparative characterization of complete and truncated forms of Lactobacillus amylovorus alpha-amylase and role of the C-terminal direct repeats in raw-starch binding.

R Rodriguez Sanoja, J Morlon-Guyot, J Jore, J Pintado, N Juge, J P Guyot

Abstract readComparative Study
In one paragraph

Article in Applied and environmental microbiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 86 citations in OpenAlex.

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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

6 authors at 3 institutions in 3 countries.

R Rodriguez SanojaLaboratoire de Biotechnologie Microbienne Tropicale, Institut de Recherche pour le Développement, Montpellier, France.
J Morlon-Guyot
J Jore
J Pintado
N Juge
J P Guyot
Institut de Recherche pour le Développement · FRNetherlands Organisation for Health Research and Development · NLQuadram Institute · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two constructs derived from the alpha-amylase gene (amyA) of Lactobacillus amylovorus were expressed in Lactobacillus plantarum, and their expression products were purified, characterized, and compared. These products correspond to the complete (AmyA) and truncated (AmyADelta) forms of alpha-amylase; AmyADelta lacks the 66-kDa carboxyl-terminal direct-repeating-unit region. AmyA and AmyADelta exhibit similar amylase activities towards a range of soluble substrates (amylose, amylopectin and alpha-cyclodextrin, and soluble starch). The specific activities of the enzymes towards soluble starch are similar, but the K(M) and V(max) values of AmyADelta were slightly higher than those of AmyA, whereas the thermal stability of AmyADelta was lower than that of AmyA. In contrast to AmyA, AmyADelta is unable to bind to beta-cyclodextrin and is only weakly active towards glycogen. More striking is the fact that AmyADelta cannot bind or hydrolyze raw starch, demonstrating that the carboxyl-terminal repeating-unit domain of AmyA is required for raw-starch binding activity.

Indexed as

Bacterial Proteinsalpha-AmylasesGene DeletionHydrogen-Ion ConcentrationLactobacillusMicroscopy, Electron, ScanningRecombinant ProteinsStarchSubstrate SpecificityTemperatureTerminal Repeat Sequencesalpha-AmylasesBacterial ProteinsRecombinant ProteinsStarch

Identifiers

PMID10919790
PMCPMC92154
OpenAlexW1977950179

What OpenQuestion holds

Textmetadata
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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.