Evidence map›Paper›PMID 15466542›Full record

ArticleApplied and environmental microbiology2004

Enzymatic analysis of an amylolytic enzyme from the hyperthermophilic archaeon Pyrococcus furiosus reveals its novel catalytic properties as both an alpha-amylase and a cyclodextrin-hydrolyzing enzyme.

Sung-Jae Yang, Hee-Seob Lee, Cheon-Seok Park, Yong-Ro Kim, Tae-Wha Moon, Kwan-Hwa Park

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2004. 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
3.5field-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

17 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. 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

6 authors at 2 institutions in 1 country.

Sung-Jae YangDepartment of Food Science and Technology, Seoul National University, Shillim-dong, Kwanak-gu, Seoul 151-742, Korea.
Hee-Seob Lee
Cheon-Seok Park
Yong-Ro Kim
Tae-Wha Moon
Kwan-Hwa Park
Kyung Hee University · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genomic analysis of the hyperthermophilic archaeon Pyrococcus furiosus revealed the presence of an open reading frame (ORF PF1939) similar to the enzymes in glycoside hydrolase family 13. This amylolytic enzyme, designated PFTA (Pyrococcus furiosus thermostable amylase), was cloned and expressed in Escherichia coli. The recombinant PFTA was extremely thermostable, with an optimum temperature of 90 degrees C. The substrate specificity of PFTA suggests that it possesses characteristics of both alpha-amylase and cyclodextrin-hydrolyzing enzyme. Like typical alpha-amylases, PFTA hydrolyzed maltooligosaccharides and starch to produce mainly maltotriose and maltotetraose. However, it could also attack and degrade pullulan and beta-cyclodextrin, which are resistant to alpha-amylase, to primarily produce panose and maltoheptaose, respectively. Furthermore, acarbose, a potent alpha-amylase inhibitor, was drastically degraded by PFTA, as is typical of cyclodextrin-hydrolyzing enzymes. These results confirm that PFTA possesses novel catalytic properties characteristic of both alpha-amylase and cyclodextrin-hydrolyzing enzyme.

Indexed as

alpha-AmylasesAmino Acid SequenceBase SequenceCarbohydrate SequenceCyclodextrinsDNA, ArchaealEnzyme StabilityEscherichia coliGenes, ArchaealHot TemperatureHydrolysisKineticsMolecular Sequence DataOligosaccharidesPyrococcus furiosusRecombinant Proteinsalpha-AmylasesCyclodextrinsDNA, ArchaealOligosaccharidesRecombinant Proteins

Identifiers

PMID15466542
PMCPMC522074
OpenAlexW2110915660

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.