Results 21 to 30 of about 131,881 (286)

Conformational Stability and Denaturation Processes of Proteins Investigated by Electrophoresis under Extreme Conditions

open access: yesMolecules, 2022
The functional structure of proteins results from marginally stable folded conformations. Reversible unfolding, irreversible denaturation, and deterioration can be caused by chemical and physical agents due to changes in the physicochemical conditions of
Patrick Masson, Sofya Lushchekina
doaj   +1 more source

Papain denaturation is not a two‐state transition

open access: yesFEBS Letters, 1978
. Even proteins such as lysozyme [2] which has a cleft in the middle and parvalbumin [3] which consists of two distinct domains are denatured without stable intermediate states. This led to a tempting conclusion that all small globular proteins built of one poly- peptide chain represent a single cooperative system.
Tiktopulo, E.I., Privalov, P.L.
openaire   +2 more sources

Direct observation of large temperature fluctuations during DNA thermal denaturation [PDF]

open access: yes, 2006
In this paper we report direct measurement of large low frequency temperature fluctuations in double stranded (ds) DNA when it undergoes thermal denaturation transition.
Chatterji, Dipankar   +2 more
core   +2 more sources

Topological Origin of the Phase Transition in a Model of DNA Denaturation [PDF]

open access: yesPhysical Review Letters, 2004
8 pages, 1 figure, RevTex 4; v2: minor changes in the ...
Grinza, Paolo, Mossa, Alessandro
openaire   +3 more sources

Honey-Induced Protein Stabilization as Studied by Fluorescein Isothiocyanate Fluorescence

open access: yesThe Scientific World Journal, 2013
Protein stabilizing potential of honey was studied on a model protein, bovine serum albumin (BSA), using extrinsic fluorescence of fluorescein isothiocyanate (FITC) as the probe.
Yin How Wong   +2 more
doaj   +1 more source

Modulation of the Structure and Stability of Novel Camel Lens Alpha-Crystallin by pH and Thermal Stress

open access: yesGels, 2022
Alpha-crystallin protein performs structural and chaperone functions in the lens and comprises alphaA and alphaB subunits at a molar ratio of 3:1. The highly complex alpha-crystallin structure challenges structural biologists because of its large dynamic
Ajamaluddin Malik   +3 more
doaj   +1 more source

Coil–globule transition in the denatured state of a small protein [PDF]

open access: yesProceedings of the National Academy of Sciences, 2006
Upon transfer from strongly denaturing to native conditions, proteins undergo a collapse that either precedes folding or occurs simultaneously with it. This collapse is similar to the well known coil–globule transition of polymers. Here we employ single-molecule fluorescence methods to fully characterize the equilibrium coil–globule ...
Eilon, Sherman, Gilad, Haran
openaire   +2 more sources

Free cysteine modulates the conformation of human C/EBP homologous protein. [PDF]

open access: yesPLoS ONE, 2012
The C/EBP Homologous Protein (CHOP) is a nuclear protein that is integral to the unfolded protein response culminating from endoplasmic reticulum stress.
Vinay K Singh   +5 more
doaj   +1 more source

Calorimetric and spectroscopic investigation of the unfolding of human apolipoprotein B.

open access: yesJournal of Lipid Research, 1990
The unfolding of human apolipoprotein B-100 in its native lipid environment, low density lipoprotein (LDL), and in a soluble, lipid-free complex with sodium deoxycholate (NaDC) has been examined using differential scanning calorimetry (DSC) and near UV ...
MT Walsh, D Atkinson
doaj   +1 more source

Calorimetric Study of Helix aspersa Maxima Hemocyanin Isoforms

open access: yesJournal of Analytical Methods in Chemistry, 2018
The thermal unfolding of hemocyanin isoforms, β-HaH and αD+N-HaH, isolated from the hemolymph of garden snails Helix aspersa maxima, was studied by means of differential scanning calorimetry (DSC). One transition, with an apparent transition temperature (
Svetla Todinova   +2 more
doaj   +1 more source

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