Effect of Zinc Ions on Mitosis in Wing Anlagen of Ephestia kühniella Z. in vitro

Nature ◽  
1966 ◽  
Vol 209 (5027) ◽  
pp. 1045-1046 ◽  
Author(s):  
C. A. BARLOW
Keyword(s):  
Zinc Ions ◽  
Ephestia Kühniella

Effect of mutations in a zinc-binding domain of yeast RNA polymerase C (III) on enzyme function and subunit association

1992 ◽  
Vol 12 (3) ◽  
pp. 1087-1095
Author(s):  
M Werner ◽  
S Hermann-Le Denmat ◽  
I Treich ◽  
A Sentenac ◽  
P Thuriaux
Keyword(s):  
Rna Polymerase ◽  
Zinc Binding ◽  
Enzyme Function ◽  
Directed Mutagenesis ◽  
Binding Motif ◽  
Zinc Ions ◽  
Amino Terminal ◽  
Zinc Binding Domain ◽  
Zinc Binding Motif

The conserved amino-terminal region of the largest subunit of yeast RNA polymerase C is capable of binding zinc ions in vitro. By oligonucleotide-directed mutagenesis, we show that the putative zinc-binding motif CX2CX6-12CXGHXGX24-37CX2C, present in the largest subunit of all eukaryotic and archaebacterial RNA polymerases, is essential for the function of RNA polymerase C. All mutations in the invariant cysteine and histidine residues conferred a lethal phenotype. We also obtained two conditional thermosensitive mutants affecting this region. One of these produced a form of RNA polymerase C which was thermosensitive and unstable in vitro. This instability was correlated with the loss of three of the subunits which are specific to RNA polymerase C: C82, C34, and C31.

scholarly journals Use of Zinc Ions To Study Thylakoid Protein Phosphorylation and the State 1-State 2 Transition In Vitro

1984 ◽  
Vol 74 (2) ◽  
pp. 348-354 ◽  
Author(s):  
John P. Markwell ◽  
Neil R. Baker ◽  
Michael Bradbury ◽  
J. Philip Thornber
Keyword(s):  
Protein Phosphorylation ◽  
The State ◽  
Zinc Ions ◽  
Thylakoid Protein ◽  
State 1 ◽  
Thylakoid Protein Phosphorylation

A thiazolo[4,5-b]pyridine-based fluorescent probe for detection of zinc ions and application for in vitro and in vivo bioimaging

Talanta ◽  
2018 ◽  
Vol 185 ◽  
pp. 396-404 ◽  
Author(s):  
Jiao Gong ◽  
Yuan-heng Li ◽  
Chan-juan Zhang ◽  
Jian Huang ◽  
Qi Sun
Keyword(s):  
Fluorescent Probe ◽  
Zinc Ions

Antibacterial Effects of Sol-Gel Derived Zinc-Containing Hydroxyapatite

2007 ◽  
Vol 361-363 ◽  
pp. 139-142 ◽  
Author(s):  
Xin Chang Shi ◽  
H.Z. Jiang ◽  
J. Xue ◽  
Yun Mao Liao ◽  
L.Y. Xiao ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Sol Gel ◽  
Brain Heart Infusion ◽  
Zinc Content ◽  
Atomic Emission ◽  
Biological Properties ◽  
Zinc Ions ◽  
Antibacterial Effects ◽  
Inductively Coupled

In order to modify the biological properties of pure hydroxyapatite (HAp), two kinds of zinc-containing HAp, which had zinc content of 5.10wt% and 2.54wt%, respectively, were synthesized via sol-gel technique. The obtained coatings were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). Then the antibacterial effects were evaluated through bacteriostatic test on Streptococcus mutans (S.mutans) in vitro and zinc ions releasing ability was investigated through detecting the zinc ions concentration by inductively coupled plasma-atomic emission spectroscopy (ICP-AES). The obtained coatings were observed to possess typical apatite peaks in XRD patterns and high homogeneous and porous surfaces in SEM morphology. The coating layer demonstrated good releasing ability in Brain Heart Infusion (BHI) liquid and obviously inhibitory effects to the growth and proliferation of S. mutans. Based on the results obtained above, it is concluded that the sol-gel derived zinc-containing hydroxyapatite could be applied as an antibacterial effective biomaterial.

scholarly journals Effect of mutations in a zinc-binding domain of yeast RNA polymerase C (III) on enzyme function and subunit association.

1992 ◽  
Vol 12 (3) ◽  
pp. 1087-1095 ◽  
Author(s):  
M Werner ◽  
S Hermann-Le Denmat ◽  
I Treich ◽  
A Sentenac ◽  
P Thuriaux
Keyword(s):  
Rna Polymerase ◽  
Zinc Binding ◽  
Enzyme Function ◽  
Directed Mutagenesis ◽  
Binding Motif ◽  
Zinc Ions ◽  
Amino Terminal ◽  
Zinc Binding Domain ◽  
Zinc Binding Motif

The conserved amino-terminal region of the largest subunit of yeast RNA polymerase C is capable of binding zinc ions in vitro. By oligonucleotide-directed mutagenesis, we show that the putative zinc-binding motif CX2CX6-12CXGHXGX24-37CX2C, present in the largest subunit of all eukaryotic and archaebacterial RNA polymerases, is essential for the function of RNA polymerase C. All mutations in the invariant cysteine and histidine residues conferred a lethal phenotype. We also obtained two conditional thermosensitive mutants affecting this region. One of these produced a form of RNA polymerase C which was thermosensitive and unstable in vitro. This instability was correlated with the loss of three of the subunits which are specific to RNA polymerase C: C82, C34, and C31.

scholarly journals The binding of in vitro synthesized adenovirus DNA binding protein to single-stranded DNA is stimulated by zinc ions

FEBS Letters ◽  
1988 ◽  
Vol 239 (2) ◽  
pp. 251-254 ◽  
Author(s):  
Hans L. Vos ◽  
Frédérique M. van der Lee ◽  
John S. Sussenbach
Keyword(s):  
Dna Binding ◽  
Binding Protein ◽  
Dna Binding Protein ◽  
Zinc Ions ◽  
Single Stranded Dna

scholarly journals Different effects of zinc ions on in vitro susceptibilities of Stenotrophomonas maltophilia to imipenem and meropenem.

1996 ◽  
Vol 40 (12) ◽  
pp. 2909-2910 ◽  
Author(s):  
P Cooke ◽  
J Heritage ◽  
K Kerr ◽  
P M Hawkey ◽  
K E Newton
Keyword(s):  
Stenotrophomonas Maltophilia ◽  
Zinc Ions

scholarly journals Evaluation of the Antibacterial Activity and Cell Response for 3D-Printed Polycaprolactone/Nanohydroxyapatite Scaffold with Zinc Oxide Coating

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2193
Author(s):  
Yong Sang Cho ◽  
Hee-Kyeong Kim ◽  
Min-Soo Ghim ◽  
Myoung Wha Hong ◽  
Young Yul Kim ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Cell Response ◽  
Oxide Coating ◽  
Compressive Modulus ◽  
Bacterial Activity ◽  
Zinc Ions ◽  
3D Printed

Among 3D-printed composite scaffolds for bone tissue engineering, researchers have been attracted to the use of zinc ions to improve the scaffold’s anti-bacterial activity and prevent surgical site infection. In this study, we assumed that the concentration of zinc ions released from the scaffold will be correlated with the thickness of the zinc oxide coating on 3D-printed scaffolds. We investigated the adequate thickness of zinc oxide coating by comparing different scaffolds’ characteristics, antibacterial activity, and in vitro cell response. The scaffolds’ compressive modulus decreased as the zinc oxide coating thickness increased (10, 100 and 200 nm). However, the compressive modulus of scaffolds in this study were superior to those of other reported scaffolds because our scaffolds had a kagome structure and were made of composite material. In regard to the antibacterial activity and in vitro cell response, the in vitro cell proliferation on scaffolds with a zinc oxide coating was higher than that of the control scaffold. Moreover, the antibacterial activity of scaffolds with 100 or 200 nm-thick zinc oxide coating on Escherichia coli was superior to that of other scaffolds. Therefore, we concluded that the scaffold with a 100 nm-thick zinc oxide coating was the most appropriate scaffold to use as a bone-regenerating scaffold, given its mechanical property, its antibacterial activity, and its in vitro cell proliferation.

The effect of zinc ions on selective and nonselective histamine release in vitro

1974 ◽  
Vol 4 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Wacŀaw Kazimierczak ◽  
Czesŀaw Maśliński
Keyword(s):  
Histamine Release ◽  
Zinc Ions ◽  
Release In Vitro
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