Evidence map›Paper›PMID 7764386›Full record

ArticleApplied microbiology and biotechnology1993

Molecular cloning, expression and structure of the endo-1,5-alpha-L-arabinase gene of Aspergillus niger.

M J Flipphi, H Panneman, P van der Veen, J Visser, L H de Graaff

Abstract read
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Article in Applied microbiology and biotechnology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.0field-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

14 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Fungal enzyme sets for plant polysaccharide degradation.Applied microbiology and biotechnology · 2011
    Review
  7. Fungal arabinan and L-arabinose metabolism.Applied microbiology and biotechnology · 2011
    Review
  8. Article
  9. Aspergillus enzymes involved in degradation of plant cell wall polysaccharides.Microbiology and molecular biology reviews : MMBR · 2001
    Review
  10. Endo-xylogalacturonan hydrolase, a novel pectinolytic enzyme.Applied and environmental microbiology · 2000
    Article
  11. Article
  12. Article
  13. Article
  14. 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

5 authors at 1 institution in 1 country.

M J FlipphiSection Molecular Genetics of Industrial Microorganisms, Wageningen Agricultural University, The Netherlands.
H Panneman
P van der Veen
J Visser
L H de Graaff
Graduate School Experimental Plant Sciences · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Secretion of endo-1,5-alpha-L-arabinase A (ABN A) by an Aspergillus niger xylulose kinase mutant upon mycelium transfer to medium containing L-arabitol was immunochemically followed with time to monitor its induction profile. A cDNA expression library was made from polyA+ RNA isolated from the induced mycelium. This library was immunochemically screened and one ABN A specific clone emerged. The corresponding abnA gene was isolated from an A. niger genomic library. Upon Southern blot analysis, a 3.1-kb HindIII fragment was identified and subcloned to result in plasmid pIM950. By means of co-transformation using the A. niger pyrA gene as selection marker, the gene was introduced in both A. niger and A. nidulans uridine auxotrophic mutants. Prototrophic A. niger and A. nidulans transformants overproduced A. niger ABN A upon growth in medium containing sugar beet pulp as the sole carbon source, thereby establishing the identity and functionality of the cloned gene. The DNA sequence of the complete HindIII fragment was determined and the structure of the abnA gene as well as of its deduced gene product were analysed. Gene abnA contains three introns within its structural region and codes for a protein of 321 amino acids. Signal peptide processing results in a mature protein of 302 amino acids with a deduced molecular mass of 32.5 kDa. A. niger abnA is the first gene encoding an ABN to be isolated and characterized.

Indexed as

Amino Acid SequenceAspergillus nigerBase SequenceCloning, MolecularGene ExpressionGenes, FungalGlycoside HydrolasesMolecular Sequence DataEndo-arabinaseGlycoside Hydrolases

Identifiers

PMID7764386
OpenAlexW1978165744

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.