Metal ion binding properties of hen ovalbumin and S-ovalbumin: characterization of the metal ion binding site by phosphorus-31 NMR and water proton relaxation rate enhancements

Biochemistry ◽  
1986 ◽  
Vol 25 (1) ◽  
pp. 84-94 ◽  
Author(s):  
Warren J. Goux ◽  
P. N. Venkatasubramanian
Keyword(s):  
Relaxation Rate ◽  
Binding Site ◽  
Metal Ion ◽  
Water Proton ◽  
Proton Relaxation ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Binding Properties

Investigation of optical and electrochemical properties as well as metal ion sensitivities of different number of crown ether appended phthalocyanines

2013 ◽  
Vol 17 (08n09) ◽  
pp. 682-690 ◽  
Author(s):  
Sevinc Z. Topal ◽  
Devrim Atilla ◽  
Kadriye Ertekin ◽  
Jean B. Tommasino ◽  
Dominique Luneau ◽  
...  
Keyword(s):  
Crown Ether ◽  
Metal Ion ◽  
Fluorescence Emission ◽  
Emission Spectra ◽  
Zinc Phthalocyanine ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Binding Properties ◽  
Fluorescence Emission Spectra

We report herein, the synthesis, and spectral and electrochemical characterization of a series of phthalocyaninato zinc complexes where two biomedically potential structures; crown ether and phthalocyanine moities were gathered on the same molecule. The effect of number of crown ether moieties on metal ion binding properties, as well as proton sensitivity were investigated by using electronic absorption and fluorescence emission spectra. Spectral behaviors of the zinc phthalocyanine complexes fused with one crown ether; Zn [ Pc (15 C 5)( C 6 H 13)6] and four crown ether; Zn [ Pc (15 C 5)4] in presence of Na + and K + ions were investigated into detail because of host-guest interactions of subjective ions with crown ether moieties, and compared with the crown ether free phthalocyanine; Zn [ Pc ( C 6 H 13)8].

scholarly journals Introduction and characterization of a functionally linked metal ion binding site at the exposed heme edge of myoglobin

2003 ◽  
Vol 100 (7) ◽  
pp. 3647-3652 ◽  
Author(s):  
C. L. Hunter ◽  
R. Maurus ◽  
M. R. Mauk ◽  
H. Lee ◽  
E. L. Raven ◽  
...  
Keyword(s):  
Binding Site ◽  
Metal Ion ◽  
Ion Binding ◽  
Metal Ion Binding
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