scholarly journals Correction to “Amino Acid Specific Effects on RNA Tertiary Interactions: Single-Molecule Kinetic and Thermodynamic Studies”

2019 ◽  
Vol 123 (33) ◽  
pp. 7240-7240
Author(s):  
Abhigyan Sengupta ◽  
Hsuan-Lei Sung ◽  
David J. Nesbitt
Keyword(s):  
Amino Acid ◽  
Single Molecule ◽  
Thermodynamic Studies ◽  
Specific Effects ◽  
Tertiary Interactions ◽  
Kinetic And Thermodynamic Studies

Kinetic and thermodynamic studies of novel acid phosphates extracted from Cichorium intybus seedlings

2021 ◽  
Vol 168 ◽  
pp. 195-204
Author(s):  
Umber Zaman ◽  
Rubina Naz ◽  
Noor Saeed Khattak ◽  
Khalil ur Rehman ◽  
Asma Saeed ◽  
...  
Keyword(s):  
Cichorium Intybus ◽  
Thermodynamic Studies ◽  
Kinetic And Thermodynamic Studies

scholarly journals Roles of the C-Terminal Amino Acids of Non-Hexameric Helicases: Insights from Escherichia coli UvrD

2021 ◽  
Vol 22 (3) ◽  
pp. 1018
Author(s):  
Hiroaki Yokota
Keyword(s):  
Escherichia Coli ◽  
Amino Acids ◽  
Amino Acid ◽  
Single Molecule ◽  
Underlying Mechanism ◽  
Amino Acid Sequences ◽  
E Coli ◽  
X Ray Crystallography ◽  
Terminal Amino

Helicases are nucleic acid-unwinding enzymes that are involved in the maintenance of genome integrity. Several parts of the amino acid sequences of helicases are very similar, and these quite well-conserved amino acid sequences are termed “helicase motifs”. Previous studies by X-ray crystallography and single-molecule measurements have suggested a common underlying mechanism for their function. These studies indicate the role of the helicase motifs in unwinding nucleic acids. In contrast, the sequence and length of the C-terminal amino acids of helicases are highly variable. In this paper, I review past and recent studies that proposed helicase mechanisms and studies that investigated the roles of the C-terminal amino acids on helicase and dimerization activities, primarily on the non-hexermeric Escherichia coli (E. coli) UvrD helicase. Then, I center on my recent study of single-molecule direct visualization of a UvrD mutant lacking the C-terminal 40 amino acids (UvrDΔ40C) used in studies proposing the monomer helicase model. The study demonstrated that multiple UvrDΔ40C molecules jointly participated in DNA unwinding, presumably by forming an oligomer. Thus, the single-molecule observation addressed how the C-terminal amino acids affect the number of helicases bound to DNA, oligomerization, and unwinding activity, which can be applied to other helicases.

Optimization, kinetic and thermodynamic studies for removal of Brilliant Red (X-3B) using Tannin gel

2014 ◽  
Vol 2 (1) ◽  
pp. 76-83 ◽  
Author(s):  
M. Maria Rahman ◽  
Nahida Akter ◽  
Mohammad Razaul Karim ◽  
N. Ahmad ◽  
Mohammed M. Rahman ◽  
...  
Keyword(s):  
Thermodynamic Studies ◽  
Kinetic And Thermodynamic Studies
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