Home LiteratureArticle Details
PMID: 7103946 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S.

Evidence that the activation of aconitase involves a conformation change.

The Biochemical journal ·Vol. 203 ·No. 1 ·1982-04-01 ·Pages 327-30

Ramsay RR

Abstract

Reduction of the iron-sulphur cluster of aconitase initiates a slow increase in catalytic activity. It has been proposed that activation involves a conformational change in the protein. Direct evidence for this is presented here in the demonstration that, after reduction of the cluster, the progressive increase in activity is parallelled by an increase in the fluorescence of the protein.

MeSH Terms
Aconitate Hydratase/metabolism Dithionite/pharmacology Enzyme Activation/drug effects Oxidation-Reduction Protein Conformation Spectrometry, Fluorescence
Chemicals
Dithionite Aconitate Hydratase
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Ramsay R R
References (8)
8 references, click to expand
  1. The mechanism of aconitase action. I. Preparation, physical properties of the enzyme, and activation by iron (II).
    J Biol Chem. 1971 Feb 10;246(3):772-9 PMID: 5542689
  2. Iron and aconitase activity.
    Biochem J. 1974 Jun;139(3):709-14 PMID: 4852570
  3. Reversible binding of Pi by beef heart mitochondrial adenosine triphosphatase.
    J Biol Chem. 1977 May 10;252(9):2891-9 PMID: 16006
  4. The soluble "high potential" type iron-sulfur protein from mitochondria is aconitase.
    J Biol Chem. 1978 Apr 25;253(8):2514-7 PMID: 204652
  5. The high potential iron-sulfur cluster of aconitase is a binuclear iron-sulfur cluster.
    J Biol Chem. 1979 Jun 25;254(12):4967-9 PMID: 447628
  6. On the nature of the iron-sulfur centers in a ferredoxin from Azotobacter vinelandii. Mössbauer studies and cluster displacement experiments.
    J Biol Chem. 1980 Mar 10;255(5):1793-6 PMID: 7354057
  7. Fluorescence spectroscopic investigations of the dynamic properties of proteins, membranes and nucleic acids.
    J Biochem Biophys Methods. 1980 Jan-Feb;2(1):91-119 PMID: 6158533
  8. Relationship of the oxidation state of the iron-sulfur cluster of aconitase to activity and substrate binding.
    Biochemistry. 1981 Dec 22;20(26):7476-82 PMID: 7326240
Article Info
Journal
The Biochemical journal
Abbr.
Biochem J
ISSN
0264-6021
Published
1982-04-01
Pages
327-30
Language
English
Region
England
NLM ID
2984726R
PMCID
PMC1158227
Subset
IM
Grants
NHLBI NIH HHS · HL-16251 · United States
Analysis Services
Analysis Services

Contact

No. 2 Wenbo Road, Zhangqiu District, Jinan, Shandong

Qilu Normal University · Genelibs Bioinformatics Lab

750 Shunhua Rd, Jinan

2F, Bldg F, University Science Park

Tel: 0531-88819269

WeChat Official Account

Follow our WeChat subscription account for real-time updates and the latest in medical and biological research.


Business Email

E-mail: [email protected]