Evidence map›Paper›PMID 27605431›Full record

ArticleScientific reports2016

Purification, characterization, cytotoxicity and anticancer activities of L-asparaginase, anti-colon cancer protein, from the newly isolated alkaliphilic Streptomyces fradiae NEAE-82.

Noura El-Ahmady El-Naggar, Sahar F Deraz, Hoda M Soliman, Nehal M El-Deeb, Sara M El-Ewasy

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
–field-weighted citation impact
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

48 citing papers in PubMed.

  1. Article
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  8. Review
  9. Recombinant Esterase (BaCEApplied biochemistry and biotechnology · 2025
    Article
  10. Actinomycetes: A Source of Anticancer Metabolites.Current medicinal chemistry · 2025
    Review
  11. Thermostable bacterial L-asparaginase for polyacrylamide inhibition and in silico mutational analysis.International microbiology : the official journal of the Spanish Society for Microbiology · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. l-Asparaginase fromACS omega · 2024
    Article
  17. Article
  18. Characterization of L-asparaginase from Streptomyces koyangensis SK4 with acrylamide-minimizing potential in potato chips.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
    Article
  19. 3 Biotech · 2023
    Article
  20. 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.

Noura El-Ahmady El-NaggarDepartment of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt.
Sahar F DerazDepartment of Protein Research, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research &Technological Applications, Alexandria, Egypt.
Hoda M SolimanDepartment of Botany, Faculty of Science, Mansoura University, Mansoura, Egypt.
Nehal M El-DeebBiopharmacetical Product Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt.
Sara M El-EwasyDepartment of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

L-asparaginase is an important enzyme as therapeutic agents used in combination with other drugs in the treatment of acute lymphoblastic leukemia. A newly isolated actinomycetes strain, Streptomyces sp. NEAE-82, was potentially producing extracellular L-asparaginase, it was identified as Streptomyces fradiae NEAE-82, sequencing product was deposited in the GenBank database under accession number KJ467538. L-asparaginase was purified from the crude enzyme using ammonium sulfate precipitation, dialysis and ion exchange chromatography using DEAE Sepharose CL-6B. Further the kinetic studies of purified enzyme were carried out. The optimum pH, temperature and incubation time for maximum L-asparaginase activity were found to be 8.5, 40 °C and 30 min, respectively. The optimum substrate concentration was found to be 0.06 M. The Km and Vmax of the enzyme were 0.01007 M and 95.08 Uml(-1)min(-1), respectively. The half-life time (T1/2) was 184.91 min at 50 °С, while being 179.53 min at 60 °С. The molecular weight of the subunits of L-asparaginase was found to be approximately 53 kDa by SDS-PAGE analysis. The purified L-asparaginase showed a final specific activity of 30.636 U/mg protein and was purified 3.338-fold. The present work for the first time reported more information in the production, purification and characterization of L-asparaginase produced by newly isolated actinomycetes Streptomyces fradiae NEAE-82.

Indexed as

ActinobacteriaAnti-Infective AgentsAntineoplastic AgentsAsparaginaseColonic NeoplasmsDatabases, Nucleic AcidEnzyme ActivationEnzyme AssaysEnzyme StabilityRNA, RibosomalStreptomycesSubstrate SpecificityAnti-Infective AgentsAntineoplastic AgentsAsparaginaseRNA, Ribosomal

Identifiers

PMID27605431
PMCPMC5015098

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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.