Document Detail


Atrial natriuretic factor stimulates phosphorylation of a 52-kDa calmodulin-binding protein in vascular smooth muscle cells.
MedLine Citation:
PMID:  7681659     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of atrial natriuretic factor (ANF) on the phosphorylation of the calmodulin-binding protein in vascular smooth muscle cells was investigated. Several phosphorylated calmodulin-binding proteins ranging in molecular weight from 205,000 to 50,000 were detected. Among them, we have found that the phosphorylation of a 52-kDa protein present mainly in the cytosolic fraction is stimulated by ANF and that the elevation of the phosphorylation is both time- and dose-dependent. Furthermore, the stimulation was mimicked by 8-bromo-cyclic GMP but not by 8-bromo-cyclic AMP. Endothelin induced significant inhibition of the phosphorylation. These results indicate that 52-kDa protein phosphorylation may be responsible for the regulation of vascular smooth muscle tone.
Authors:
S Nakajo; T Inagami
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Archives of biochemistry and biophysics     Volume:  301     ISSN:  0003-9861     ISO Abbreviation:  Arch. Biochem. Biophys.     Publication Date:  1993 Mar 
Date Detail:
Created Date:  1993-04-23     Completed Date:  1993-04-23     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  0372430     Medline TA:  Arch Biochem Biophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  320-4     Citation Subset:  IM    
Affiliation:
Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232.
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MeSH Terms
Descriptor/Qualifier:
Animals
Aorta / cytology,  metabolism*
Atrial Natriuretic Factor / pharmacology*
Calmodulin-Binding Proteins / metabolism*
Cells, Cultured
Cyclic GMP / analogs & derivatives,  pharmacology
Cytosol / metabolism
Dose-Response Relationship, Drug
Endothelins / pharmacology
Male
Muscle, Smooth, Vascular / drug effects,  metabolism*
Phosphorylation
Phosphoserine / analysis
Phosphothreonine / analysis
Phosphotyrosine
Protein Kinases / metabolism*
Rats
Rats, Inbred Strains
Rats, Wistar
Tyrosine / analogs & derivatives,  analysis
Grant Support
ID/Acronym/Agency:
HL14192/HL/NHLBI NIH HHS; HL35323/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Calmodulin-Binding Proteins; 0/Endothelins; 1114-81-4/Phosphothreonine; 17885-08-4/Phosphoserine; 21820-51-9/Phosphotyrosine; 31356-94-2/8-bromocyclic GMP; 55520-40-6/Tyrosine; 7665-99-8/Cyclic GMP; 85637-73-6/Atrial Natriuretic Factor; EC 2.7.-/Protein Kinases

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


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