Track topics on Twitter Track topics that are important to you
Myoglobin (Mb) purified from fast skeletal muscle of bluefin tuna Thunnus thynnus orientalis was subjected to thermal treatment, and the denaturation profiles were examined by thermodynamic analysis. Based on the ellipticity or helical content obtained by circular dichroism (CD) spectrometry, it was found that denaturation of tuna Mb consisted of three steps, and that slight structural changes of Mb started below 20 degrees C. However, major structural changes were observed at around 58 and 72 degrees C. Differential scanning calorimetry (DSC) analysis revealed a similar but somewhat different thermal denaturation profile of Mb. In comparison with the denaturing profiles of whale Mb under the same conditions, the thermal stability of tuna Mb was found to be much lower. In the modeled tertiary structures of these Mbs, they were roughly similar to each other, though minor conformational differences were recognized and the total energy was found to be lower for tuna Mb.
Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo.
This article was published in the following journal.
Name: Bioscience, biotechnology, and biochemistry
We present the software CDpal that is used to analyze thermal and chemical denaturation data to obtain information on protein stability. The software uses standard assumptions and equations applied to...
We extended thermal proteome profiling to detect transmembrane protein-small molecule interactions in cultured human cells. When we assessed the effects of detergents on ATP-binding profiles, we obser...
Scombrotoxin fish poisoning (SFP), also known as histamine (Hst) poisoning, has been associated with consumption of scombroid-type fish, including tuna and tuna fish products. Preparation of commercia...
Folding and aggregation of proteins profoundly influence their functions. We have investigated the effects of thermal history, concentration and pH on the denaturation and refolding of lysozyme by usi...
This study aims to characterize and understand the effects of freezing on collagen structures and functionality. Specifically, thermodynamic destabilization of collagen at molecular- and fibril-levels...
The TUNA is a known and already old technique. There exists, in the literature, a certain number of studies showing the long-term effectiveness (5 years), evaluated on the IPS and the flow...
This is a study to evaluate thermal imaging as a technology to monitor the normal clearing of amniotic fluid from healthy newborns and newborns suspected of having a condition called trans...
The primary objective of this randomized clinical trial is to determine the efficacy and safety of three treatments for benign prostatic hyperplasia (BPH): transurethral needle ablation (...
The goal of this clinical research study is to evaluate whether thermal imaging (recording body temperature) can be used to check the body's response to cancer therapy. Primary Objective:...
This is a randomized, double-blind, placebo-controlled, parallel-group, single-dose study of the efficacy of REGN475 in patients with pain due to thermal injury.
Disruption of the secondary structure of nucleic acids by heat, extreme pH or chemical treatment. Double strand DNA is "melted" by dissociation of the non-covalent hydrogen bonds and hydrophobic interactions. Denatured DNA appears to be a single-stranded flexible structure. The effects of denaturation on RNA are similar though less pronounced and largely reversible.
A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
Differential thermal analysis in which the sample compartment of the apparatus is a differential calorimeter, allowing an exact measure of the heat of transition independent of the specific heat, thermal conductivity, and other variables of the sample.
Common name for various species of large, vigorous ocean fishes in the family Scombridae.
Arthritis Fibromyalgia Gout Lupus Rheumatic Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Diction...
Bioscience - any of the sciences that deal with living organisms. The study of the nature, behavior, and uses of living organisms as applied to biology. Any of the branches of natural science dealing with living things, such as their structure, b...