Results 21 to 30 of about 1,952,840 (306)

Accelerated Evolution of Cytochrome c in Higher Primates, and Regulation of the Reaction between Cytochrome c and Cytochrome Oxidase by Phosphorylation

Cells, 2022
Cytochrome c (Cc) underwent accelerated evolution from the stem of the anthropoid primates to humans. Of the 11 amino acid changes that occurred from horse Cc to human Cc, five were at Cc residues near the binding site of the Cc:CcO complex. Single-point
Sue Ellen Brand, Martha Scharlau, Lois Geren, Marissa Hendrix, Clayre Parson, Tyler Elmendorf, Earl Neel, Kaila Pianalto, Jennifer Silva-Nash, Bill Durham, Francis Millett   +10 more
doaj   +1 more source

Acid dissociation constants of glycopeptides [PDF]

Biochemical Journal, 1977
Glycopeptides containing mainly four amino acid residues in the sequence Asn-Leu-Thr-Ser, with small amounts of additional amino acid residues, were isolated from enzymic hydrolysates of hen's-egg albumin. Heterogeneity of the carbohydrate moiety was confirmed. Acid-base titrations showed that the alpha-amino group has a pKa value of 6.43 at 25 degrees
B M, Austen, R D, Marshall
openaire   +2 more sources

Determinação da constante de dissociação (Ka) do captopril e da nimesulida: experimentos de química analítica para o curso de farmácia

Química Nova, 2011
This paper presents the determination of the dissociation constant (Ka) of captopril and nimesulide as contextualized experiments to teach chemical concepts to students of Pharmacy.
Airton Vicente Pereira, Aline Ansbach Garabeli, Grazieli Delponte Schunemann, Patrícia Cristine Borck   +3 more
doaj   +1 more source

Determination of Acid Dissociation Constants of Some 2-(3H) –Benzoxazolone Derivatives by UV–Vis Spectrophotometry [PDF]

Iranian Journal of Chemistry & Chemical Engineering
The acid dissociation constant values of some 2-(3H)-benzoxazolone derivatives were determined in buffered solutions by using the UV-Vis spectrophotometric method.
Semra Altunterim Erkan, Hayati Celik, Banu Kesanlı   +2 more
doaj   +1 more source

In vitro Microtubule Binding Assay and Dissociation Constant Estimation

Bio-Protocol, 2016
Microtubules (MTs) support an astonishing set of versatile cellular functions ranging from cell division, vesicle transport, and cell and tissue morphogenesis in various organisms.
Christopher Kesten, René Schneider, Staffan Persson   +2 more
doaj   +1 more source

Measurement of 4-(2-thiazole azo) rososinol acidy constants by means of ultraviolet spectroscopy and chemometrics in water-acetonitrile and water-dioxane binary mixtures [PDF]

شیمی کاربردی روز
In this paper, by combining ultraviolet spectroscopy and Chemometrics method, the acid dissociation constant of 4- (2-thiazole azo) rososinol was measured. The absorption spectra of the 4- (2-thiazole azo) rososinol solution have a large spectral overlap,
Mansoor Namazian, Shahriar Jahanbani, Ali Benvidi   +2 more
doaj   +1 more source

An Automated Approach to Assess Relative Galectin-Glycan Affinity Following Glycan Microarray Analysis

Frontiers in Molecular Biosciences, 2022
Numerous studies have highlighted the utility of glycan microarray analysis for the elucidation of protein-glycan interactions. However, most current glycan microarray studies analyze glycan binding protein (GBP)-glycan interactions at a single protein ...
Alex D. Ho, Shang-Chuen Wu, Nourine A. Kamili, Anna V. Blenda, Richard D. Cummings, Sean R. Stowell, Connie M. Arthur   +6 more
doaj   +1 more source

Graphical determination of dissociation constant, pKa of non-polar amino acids [PDF]

, 2011
The dissociation constant (pKa) of non – polar amino acids including (alanine, glycine, valine phenylalanine and tryptophan) were determined by potentiometric titration technique.
Na’aliya, J
core   +1 more source

Monoclonal antibody to rat apoC: multiple binding to apoC-I on lipoproteins increases its affinity constant.

Journal of Lipid Research, 1985
Using solid phase systems, the kinetics of binding of monoclonal antibody (LRB 45, IgG2b,kappa) to apoC-I and apoC-I on lipoproteins were investigated. At 25 degrees C, the association constant of LRB 45 antibody to apoC-I (3.56 X 10(6) M-1 X sec-1) was ...
L Wong
doaj   +1 more source

Voltage affects the dissociation rate constant of the m2 muscarinic receptor. [PDF]

PLoS ONE, 2013
G-protein coupled receptors (GPCRs) comprise the largest protein family and mediate the vast majority of signal transduction processes in the body. Until recently GPCRs were not considered to be voltage dependent.
Yair Ben Chaim, Shimrit Bochnik, Itzchak Parnas, Hanna Parnas   +3 more
doaj   +1 more source