Correction to “Bonding and Phosphorescence Trends in 1-D, 2-D, and 3-D Oligomers and Extended Excimers of Group 12 Metals: Validation of Cooperativity in Both Metallophilic and Excimeric Bonding”

2015 ◽  
Vol 119 (13) ◽  
pp. 7541-7541 ◽  
Author(s):  
John J. Determan ◽  
Pankaj Sinha ◽  
Angela K. Wilson ◽  
Mohammad A. Omary
Keyword(s):  
Group 12 ◽  
2003 ◽  
Vol 42 (25) ◽  
pp. 8481-8488 ◽  
Author(s):  
Zhaohui Li ◽  
Weiming Zheng ◽  
Huang Liu ◽  
K. F. Mok ◽  
T. S. Andy Hor
Keyword(s):  
Group 12 ◽  

2015 ◽  
Vol 39 (8) ◽  
pp. 6016-6024 ◽  
Author(s):  
Jin'an Zhao ◽  
Kun Peng ◽  
Yan Guo ◽  
Jin Zhang ◽  
Shufang Chen ◽  
...  

Group 12 metal-based complexes constructed with a novel tripodal ligand display prominent photoluminescence, and zinc complex shows potential antitumor activity.


Polyhedron ◽  
1998 ◽  
Vol 17 (15) ◽  
pp. 2417-2424 ◽  
Author(s):  
José S. Casas ◽  
Paula Montero-Vázquez ◽  
Agustín Sánchez ◽  
José Sordo ◽  
Ezequiel M. Vázquez-López

2001 ◽  
Vol 319 (1-2) ◽  
pp. 130-136 ◽  
Author(s):  
Norman A Bell ◽  
Timothy N Branston ◽  
William Clegg ◽  
Lynn Parker ◽  
Eric S Raper ◽  
...  

1999 ◽  
Vol 181 (11) ◽  
pp. 3462-3471 ◽  
Author(s):  
Jonathan J. Caguiat ◽  
Alice L. Watson ◽  
Anne O. Summers

ABSTRACT Expression of the Tn21 mercury resistance (mer) operon is controlled by a metal-sensing repressor-activator, MerR. When present, MerR always binds to the same position on the DNA (the operator merO), repressing transcription of the structural genes merTPCAD in the absence of Hg(II) and inducing their transcription in the presence of Hg(II). Although it has two potential binding sites, the purified MerR homodimer binds only one Hg(II) ion, employing Cys82 from one monomer and Cys117 and Cys126 from the other. When MerR binds Hg(II), it changes allosterically and also distorts the merO DNA to facilitate transcriptional initiation by ς70 RNA polymerase. Wild-type MerR is highly specific for Hg(II) and is 100- and 1,000-fold less responsive to the chemically related group 12 metals, Cd(II) and Zn(II), respectively. We sought merRmutants that respond to Cd(II) and obtained 11 Cd(II)-responsive and 5 constitutive mutants. The Cd(II)-responsive mutants, most of which had only single-residue replacements, were also repression deficient and still Hg(II) responsive but, like the wild type, were completely unresponsive to Zn(II). None of the Cd(II)-responsive mutations occurred in the DNA binding domain or replaced any of the key Cys residues. Five Cd(II)-responsive single mutations lie in the antiparallel coiled-coil domain between Cys82 and Cys117 which constitutes the dimer interface. These mutations identify 10 new positions whose alteration significantly affect MerR’s metal responsiveness or its repressor function. They give rise to specific predictions for how MerR distinguishes group 12 metals, and they refine our model of the novel domain structure of MerR. Secondary-structure predictions suggest that certain elements of this model also apply to other MerR family regulators.


2004 ◽  
Vol 43 (5) ◽  
pp. 1618-1624 ◽  
Author(s):  
Hiroyuki Furuta ◽  
Tatsuki Morimoto ◽  
Atsuhiro Osuka

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