Evidence map›Paper›PMID 17120073›Full record

ArticleJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry2007

Conformational stability and dynamics of cytochrome c affect its alkaline isomerization.

Natasa Tomásková, Rastislav Varhac, Gabriel Zoldák, Lenka Oleksáková, Dagmar Sedláková, Erik Sedlák

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Article in Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

3 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Structural and thermodynamic behavior of cytochrome c assembled with glutathione-covered gold nanoparticles.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2009
    Article
  3. Correlation of acid-induced conformational transition of ferricytochrome c with cyanide binding kinetics.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2008
    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 3 institutions in 1 country.

Natasa TomáskováDepartment of Biochemistry, Faculty of Science, UPJS, Moyzesova 11, 040 01, Kosice, Slovakia.
Rastislav Varhac
Gabriel Zoldák
Lenka Oleksáková
Dagmar Sedláková
Erik Sedlák
University of Pavol Jozef Šafárik · SKInstitute of Experimental Physics of the Slovak Academy of Sciences · SKSlovak Academy of Sciences · SK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The alkaline isomerization of horse heart ferricytochrome c (cyt c) has been studied by electronic absorption spectroscopy in the presence of the Hofmeister series of anions: chloride, bromide, rhodanide and perchlorate. The anions significantly affect the apparent pK (a) value of the transition in a concentration-dependent manner according to their position in the Hofmeister series. The Soret region of the absorption spectra is not affected by the presence of the salts and shows no significant structural perturbation of the heme crevice. In the presence of perchlorate and rhodanide anions, the cyanide exchange rate between the bulk solvent and the binding site is increased. These results imply higher flexibility of the protein structure in the presence of chaotropic salts. The thermal and isothermal denaturations monitored by differential scanning calorimetry and circular dichroism, respectively, showed a decrease in the conformational stability of cyt c in the presence of the chaotropic salts. A positive correlation between the stability, DeltaG, of cyt c and the apparent pK (a) values that characterize the alkaline transition indicates the presence of a thermodynamic linkage between these conformational transitions. In addition, the rate constant of the cyanide binding and the partial molar entropies of anions negatively correlate with the pK (a) values. This indicates the important role of anion-induced solvent reorganization on the structural flexibility of cyt c in the alkaline transitions.

Indexed as

AlkaliesAnimalsCalorimetryCircular DichroismCytochromes c'Enzyme StabilityHemeHorsesHydrogen-Ion ConcentrationIsomerismModels, ChemicalProtein ConformationProtein DenaturationThermodynamicsAlkaliesCytochromes c'Heme

Identifiers

PMID17120073
OpenAlexW2074496255

What OpenQuestion holds

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Registered trials

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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.