Exploring the copper(II)-aminotriazole complex-binding sites of human serum albumin

Verfasser / Beitragende:
[Lijun Yang, Lian He, Jing Zhang, Shuai An, Lei Zhang]
Ort, Verlag, Jahr:
2015
Enthalten in:
JBIC Journal of Biological Inorganic Chemistry, 20/6(2015-09-01), 1059-1068
Format:
Artikel (online)
ID: 605507112
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024 7 0 |a 10.1007/s00775-015-1287-x  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00775-015-1287-x 
245 0 0 |a Exploring the copper(II)-aminotriazole complex-binding sites of human serum albumin  |h [Elektronische Daten]  |c [Lijun Yang, Lian He, Jing Zhang, Shuai An, Lei Zhang] 
520 3 |a The potential impact on human exposure to aminotriazole (ATA) and heavy metal in the environment becomes a concerning issue. In the current study, a water-soluble Cu(II)-aminotriazole complex [Cu(II)-ATA] was synthesized. To explore the binding mechanism of the complex with human serum albumin (HSA), their effects on conformation and activity of HSA by multispectroscopic approach and molecular modeling were investigated. Further fluorescent tests revealed that the quenching mechanism of HSA by Cu(II)-ATA was overall static. Meanwhile, the obtained binding constant and thermodynamic parameters on complex-HSA interaction showed that the types of interaction force of Cu(II)-ATA and HSA were hydrogen bonding, van der Waals and electrostatic. The analysis of three-dimensional fluorescence, circular dichroism and Fourier transform infrared spectroscopy showed that Cu(II)-ATA induced the changes in the secondary structure of HSA. Molecular docking simulation was performed and docking model suggested that the complex docked into HSA at subdomain IIA. Furthermore, amino group and attractive electrostatic interaction of Cu(II)-ATA greatly contributed to the hydrogen bonding, van der Waals and electrostatic interaction between Cu(II)-ATA and HSA, as confirmed by experimental data. 
540 |a SBIC, 2015 
690 7 |a Metallocenter assembly  |2 nationallicence 
690 7 |a Albumin  |2 nationallicence 
690 7 |a Molecular recognition  |2 nationallicence 
690 7 |a Binding affinity  |2 nationallicence 
690 7 |a Docking  |2 nationallicence 
690 7 |a ATA : Aminotriazole  |2 nationallicence 
690 7 |a Cu(II)-ATA : Cu(II)-aminotriazole complex  |2 nationallicence 
690 7 |a CD : Circular dichroism  |2 nationallicence 
690 7 |a FT-IR : Fourier transform infrared spectroscopy  |2 nationallicence 
690 7 |a FRET : Förster's non-radiative energy transfer theory  |2 nationallicence 
690 7 |a HSA : Human serum albumin  |2 nationallicence 
690 7 |a MRE : Mean residue ellipticity  |2 nationallicence 
700 1 |a Yang  |D Lijun  |u College of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China  |4 aut 
700 1 |a He  |D Lian  |u Shenyang Institute of Geology and Mineral Resources CGS, 110034, Shenyang, People's Republic of China  |4 aut 
700 1 |a Zhang  |D Jing  |u College of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China  |4 aut 
700 1 |a An  |D Shuai  |u Shenyang Institute of Geology and Mineral Resources CGS, 110034, Shenyang, People's Republic of China  |4 aut 
700 1 |a Zhang  |D Lei  |u College of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China  |4 aut 
773 0 |t JBIC Journal of Biological Inorganic Chemistry  |d Springer Berlin Heidelberg  |g 20/6(2015-09-01), 1059-1068  |x 0949-8257  |q 20:6<1059  |1 2015  |2 20  |o 775 
856 4 0 |u https://doi.org/10.1007/s00775-015-1287-x  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00775-015-1287-x  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yang  |D Lijun  |u College of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a He  |D Lian  |u Shenyang Institute of Geology and Mineral Resources CGS, 110034, Shenyang, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Jing  |u College of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a An  |D Shuai  |u Shenyang Institute of Geology and Mineral Resources CGS, 110034, Shenyang, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Lei  |u College of Chemistry, Liaoning University, 110036, Shenyang, People's Republic of China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t JBIC Journal of Biological Inorganic Chemistry  |d Springer Berlin Heidelberg  |g 20/6(2015-09-01), 1059-1068  |x 0949-8257  |q 20:6<1059  |1 2015  |2 20  |o 775