Document Detail


The physiological role of the creatine kinase system: evolution of views.
MedLine Citation:
PMID:  11255118     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The development of ideas concerning the buffer and transport functions of the creatine kinase system is described. The concept of ATP compartmentation at sites of its production and utilization is critically analyzed. Kinetic, thermodynamic, and structural data used as a basis for a hypothesis on the structural and functional coupling of mitochondrial creatine kinase and adenine nucleotide translocase are comprehensively analyzed, and experimental evidence inconsistent with this hypothesis is presented. It seems that the mitochondrial creatine kinase may serve to equilibrate ADP concentration in the intermembrane space with fluctuating ADP concentrations in the cytoplasm. It is suggested that creatine kinase molecules bound to other intracellular structures (e.g., to myofibrils) may equilibrate local ADP concentrations with those present in the cytoplasm.
Authors:
T Y Lipskaya
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Biochemistry. Biokhimii͡a     Volume:  66     ISSN:  0006-2979     ISO Abbreviation:  Biochemistry Mosc.     Publication Date:  2001 Feb 
Date Detail:
Created Date:  2001-03-20     Completed Date:  2001-06-14     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0376536     Medline TA:  Biochemistry (Mosc)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  115-29     Citation Subset:  IM    
Affiliation:
Department of Biochemistry, School of Biology, Lomonosov Moscow State University, Moscow, 119899, Russia. litaglep@mtu-net.ru
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MeSH Terms
Descriptor/Qualifier:
Adenosine Diphosphate / metabolism
Creatine Kinase / chemistry,  metabolism,  physiology*
Kinetics
Protein Conformation
Protein Transport
Thermodynamics
Chemical
Reg. No./Substance:
58-64-0/Adenosine Diphosphate; EC 2.7.3.2/Creatine Kinase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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