Effect of Histidine 6 Protonation on the Active Site Structure and Electron-Transfer Capabilities of Pseudoazurin fromAchromobacter cycloclastes†

Biochemistry ◽  
2002 ◽  
Vol 41 (1) ◽  
pp. 120-130 ◽  
Author(s):  
Katsuko Sato ◽  
Christopher Dennison
Keyword(s):  
Electron Transfer ◽  
Active Site ◽  
Site Structure ◽  
Active Site Structure

Active-Site Structure and Electron-Transfer Reactivity of Plastocyanins

2003 ◽  
Vol 125 (8) ◽  
pp. 2101-2112 ◽  
Author(s):  
Katsuko Sato ◽  
Takamitsu Kohzuma ◽  
Christopher Dennison
Keyword(s):  
Electron Transfer ◽  
Active Site ◽  
Site Structure ◽  
Active Site Structure

Electron-Transfer Properties and Active-Site Structure of the Type 1 (Blue) Copper Protein Umecyanin

1996 ◽  
Vol 2 (1) ◽  
pp. 104-109 ◽  
Author(s):  
Christopher Dennison ◽  
Gonzalez Van Driessche ◽  
Jos Van Beeumen ◽  
William McFarlane ◽  
A. Geoffrey Sykes
Keyword(s):  
Electron Transfer ◽  
Active Site ◽  
Blue Copper Protein ◽  
Blue Copper ◽  
Site Structure ◽  
Copper Protein ◽  
Active Site Structure ◽  
Electron Transfer Properties ◽  
Transfer Properties

Active site structure and catalytic mechanisms of human peroxidases

2006 ◽  
Vol 445 (2) ◽  
pp. 199-213 ◽  
Author(s):  
Paul G. Furtmüller ◽  
Martina Zederbauer ◽  
Walter Jantschko ◽  
Jutta Helm ◽  
Martin Bogner ◽  
...  
Keyword(s):  
Active Site ◽  
Site Structure ◽  
Active Site Structure ◽  
Catalytic Mechanisms

scholarly journals Iron-Imprinted Single-Atomic Site Catalyst-Based Nanoprobe for Detection of Hydrogen Peroxide in Living Cells

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Zhaoyuan Lyu ◽  
Shichao Ding ◽  
Maoyu Wang ◽  
Xiaoqing Pan ◽  
Zhenxing Feng ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Active Site ◽  
Single Atom ◽  
Site Structure ◽  
Atomic Site ◽  
Ion Imprinting ◽  
Active Site Structure ◽  
In Situ Detection ◽  
Colorimetric Biosensing

AbstractFe-based single-atomic site catalysts (SASCs), with the natural metalloproteases-like active site structure, have attracted widespread attention in biocatalysis and biosensing. Precisely, controlling the isolated single-atom Fe-N-C active site structure is crucial to improve the SASCs’ performance. In this work, we use a facile ion-imprinting method (IIM) to synthesize isolated Fe-N-C single-atomic site catalysts (IIM-Fe-SASC). With this method, the ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC shows better peroxidase-like activities than that of non-imprinted references. Due to its excellent properties, IIM-Fe-SASC is an ideal nanoprobe used in the colorimetric biosensing of hydrogen peroxide (H2O2). Using IIM-Fe-SASC as the nanoprobe, in situ detection of H2O2 generated from MDA-MB-231 cells has been successfully demonstrated with satisfactory sensitivity and specificity. This work opens a novel and easy route in designing advanced SASC and provides a sensitive tool for intracellular H2O2 detection.

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