scholarly journals Single-molecule FRET supports the two-state model of Argonaute action

RNA Biology ◽  
2013 ◽  
Vol 11 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Adrian Zander ◽  
Phil Holzmeister ◽  
Daniel Klose ◽  
Philip Tinnefeld ◽  
Dina Grohmann
Keyword(s):  
Single Molecule ◽  
State Model ◽  
Single Molecule Fret ◽  
Two State Model

THE EFFECT OF MECHANICAL TENSION ON DNA POLYMERASE ACTIVITY STUDIED WITH A TWO-STATE MODEL

2007 ◽  
Vol 21 (17) ◽  
pp. 1097-1105 ◽  
Author(s):  
YAOGEN SHU ◽  
HUALIN SHI
Keyword(s):  
Dna Polymerase ◽  
Single Molecule ◽  
Polymerase Activity ◽  
State Model ◽  
Replication Rate ◽  
Base Stacking ◽  
Mechanical Tension ◽  
Two State Model ◽  
Good Agreement ◽  
Peak Value

Single-molecule experiments revealed that the replication rate of T7 DNA polymerase has a peak value at tension of about 5.5 pN. However, the mechanism leading to this peak has only been partially investigated. Here, we present a two-state model to investigate the effect of mechanical tension on DNA polymerase activity. The model consists of polymerase and exonuclease. The polymerase's kinetic pathway has been simplified into Michaelis–Menten form with two steps. One is the conformational change from "open" to "close". The other is the base-stacking. The results are in good agreement with experimental observations. We also predict that the tension on template is beneficial to the fidelity of DNA replication.

Polarographic studies on renaturation of urea-denatured human serum albumin

1989 ◽  
Vol 54 (2) ◽  
pp. 536-543 ◽  
Author(s):  
Josef Chmelík ◽  
Pavel Anzenbacher ◽  
Vítěz Kalous
Keyword(s):  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Irreversible Process ◽  
State Model ◽  
Native Protein ◽  
Main Components ◽  
Two State Model ◽  
Kinetics Of

The renaturation of the two main components of human serum albumin, i.e. of mercaptalbumin and nonmercaptalbumin, was studied polarographically. It has been demonstrated that renaturation of both proteins after 1-min denaturation in 8M urea is reversible. By contrast, renaturation after 200 min denaturation in 8M urea is an irreversible process; the characteristics of renatured mercaptalbumin differ more from the properties of the native protein than the characteristics of nonmercaptalbumin. The studies of the kinetics of renaturation of both proteins have shown that the renaturation can be represented by a two-state model. This means that the existence of stable intermediary products during the renaturation process was not determined polarographically.

scholarly journals Encoding Multiple Virtual Signals in DNA Barcodes with Single-Molecule FRET

Nano Letters ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1694-1701 ◽  
Author(s):  
Sung Hyun Kim ◽  
Hyunwoo Kim ◽  
Hawoong Jeong ◽  
Tae-Young Yoon
Keyword(s):  
Single Molecule ◽  
Dna Barcodes ◽  
Single Molecule Fret

Single-Molecule FRET-Based Dynamic DNA Sensor

ACS Sensors ◽  
2021 ◽  
Author(s):  
Anoja Megalathan ◽  
Kalani M. Wijesinghe ◽  
Soma Dhakal
Keyword(s):  
Single Molecule ◽  
Dna Sensor ◽  
Single Molecule Fret
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