Evidence map›Paper›PMID 9872754›Full record

ArticleApplied and environmental microbiology1999

Sequence analysis, overexpression, and antisense inhibition of a beta-xylosidase gene, xylA, from Aspergillus oryzae KBN616.

N Kitamoto, S Yoshino, K Ohmiya, N Tsukagoshi

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 88 citations in OpenAlex.

  1. Article
  2. Review
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  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Aspergillus enzymes involved in degradation of plant cell wall polysaccharides.Microbiology and molecular biology reviews : MMBR · 2001
    Review
  14. Article
  15. Antisense silencing of the creA gene in Aspergillus nidulans.Applied and environmental microbiology · 2000
    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

4 authors at 3 institutions in 1 country.

N KitamotoFood Research Institute, Aichi Prefectural Government, Nishi-ku, Nagoya 451-0083, Japan. kn-afri@aichi-iic.or.jp
S Yoshino
K Ohmiya
N Tsukagoshi
Aichi Prefectural Government · JPMie University · JPNagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

beta-Xylosidase secreted by the shoyu koji mold, Aspergillus oryzae, is the key enzyme responsible for browning of soy sauce. To investigate the role of beta-xylosidase in the brown color formation, a major beta-xylosidase, XylA, and its encoding gene were characterized. beta-Xylosidase XylA was purified to homogeneity from culture filtrates of A. oryzae KBN616. The optimum pH and temperature of the enzyme were found to be 4.0 and 60 degrees C, respectively, and the molecular mass was estimated to be 110 kDa based on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The xylA gene comprises 2,397 bp with no introns and encodes a protein consisting of 798 amino acids (86,475 Da) with 14 potential N-glycosylation sites. The deduced amino acid sequence shows high similarity to Aspergillus nidulans XlnD (70%), Aspergillus niger XlnD (64%), and Trichoderma reesei BxII (63%). The xylA gene was overexpressed under control of the strong and constitutive A. oryzae TEF1 promoter. One of the A. oryzae transformants produced approximately 13 times more of the enzyme than did the host strain. The partial-length antisense xylA gene expressed under control of the A. oryzae TEF1 promoter decreased the beta-xylosidase level in A. oryzae to about 20% of that of the host strain.

Indexed as

Genes, FungalAmino Acid SequenceAspergillus oryzaeBase SequenceConserved SequenceDNA, AntisenseDNA, FungalDNA PrimersFermentationFood TechnologyGene ExpressionMolecular Sequence DataXylosidasesDNA, AntisenseDNA, FungalDNA Primersexo-1,4-beta-D-xylosidaseXylosidases

Identifiers

PMID9872754
PMCPMC90977
OpenAlexW2120639550

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.