Evidence map›Paper›PMID 27517820›Full record

ArticleWorld journal of microbiology & biotechnology2007

Purification and biochemical characterization of a superoxide dismutase from the soluble fraction of the cyanobacterium, Spirulina platensis.

Krutika Desai, Subramanian Sivakami

Abstract read
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In one paragraph

Article in World journal of microbiology & biotechnology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

4 citing papers in PubMed, 20 citations in OpenAlex.

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  3. Article
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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

2 authors at 1 institution in 1 country.

Krutika DesaiDepartment of Life Sciences, University of Mumbai, Vidyanagari, Santacruz (East), Mumbai, 400 098, India.
Subramanian SivakamiDepartment of Life Sciences, University of Mumbai, Vidyanagari, Santacruz (East), Mumbai, 400 098, India. sivakami_s2000@yahoo.com.
University of Mumbai · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A superoxide dismutase (SOD) was purified from Spirulina platensis sonicate. The SOD was purified to homogeneity (48-fold and 0.24% yield) through ammonium sulphate precipitation and DEAE-52 anion exchange chromatography. The SOD from S. platensis appeared to be a homodimer with a molecular weight of 30 kDa and a subunit MW of 15 kDa as determined by both native polyacrylamide gel electrophoresis and mass spectrometry. The enzyme activity was stable at pH 6.5-10.0 and 50 °C. Using group-specific chemical modifying reagents, the amino acids arginine, histidine, tryptophan, tyrosine and aspartic acid were identified to be essential for S. platensis SOD activity. The amino acid composition was found to lack methionine and cysteine. The inhibition of activity by H2O2 suggests that the enzyme may be an iron containing SOD.

Indexed as

Active site amino acidsCyanobacteriumReactive oxygen speciesSpirulina platensisSuperoxide dismutase

Identifiers

PMID27517820
OpenAlexW2063460408

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.