Document Detail


The alkaline transition of blue copper proteins, Cucumis sativus plastocyanin and Pseudomonas aeruginosa azurin.
MedLine Citation:
PMID:  16500649     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Autoreduction of Cucumis sativus plastocyanin and Pseudomonas aeruginosa azurin took place at alkaline pHs, having been accompanied by the decrease in the intensities of the charge transfer band, Cys-S- (pi)-->Cu(II) at 597 and 626 nm, and the Cu(II)-EPR signals with small AII values of 6.5 x 10(-3) and 5.3 x 10(-3) cm(-1) for plastocyanin and azurin, respectively. Further, an extra Cu(II)-EPR signal with a large AII value of 21 x 10(-3) cm(-1) also reversibly emerged with increasing pH. Plastocyanin and azurin are in an equilibrium of the three forms at alkaline pHs.
Authors:
Takeshi Sakurai
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Publication Detail:
Type:  Journal Article     Date:  2006-02-20
Journal Detail:
Title:  FEBS letters     Volume:  580     ISSN:  0014-5793     ISO Abbreviation:  FEBS Lett.     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-03-17     Completed Date:  2006-06-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0155157     Medline TA:  FEBS Lett     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1729-32     Citation Subset:  IM    
Affiliation:
Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan. ts0513@kenroku.kanazawa-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Azurin / chemistry*
Cucumis sativus / chemistry*
Electron Spin Resonance Spectroscopy
Hydrogen-Ion Concentration
Metalloproteins / chemistry
Oxidation-Reduction
Plastocyanin / chemistry*
Pseudomonas aeruginosa / chemistry*
Spectrum Analysis
Chemical
Reg. No./Substance:
0/Metalloproteins; 12284-43-4/Azurin; 9014-09-9/Plastocyanin

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


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