Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Zdeněk Pavlíček"'
Publikováno v:
Collection of Czechoslovak Chemical Communications. 64:633-648
A set of twenty molecules containing 1,4-dihydro- or tetrahydropyrazine ring was calculated using ab initio methods. This set also includes previously prepared diacetyl- or disilyldihydropyrazines. Structures of 1,4-dihydropyrazine derivatives are st
Autor:
Rüdiger Ettrich, Zdeněk Pavlíček
Publikováno v:
Collection of Czechoslovak Chemical Communications. 64:717-725
Human haptoglobin (Hp) has been shown to have chaperone-like activity in preventing thermally induced aggregation of catalase and γ-crystallin. No differences in the chaperone- like behaviour of genetic types Hp 1-1 and a mixture of types Hp 2-1 and
Publikováno v:
Collection of Czechoslovak Chemical Communications. 63:1060-1073
In the present study, we have investigated the possibility that aminophospholipid glycation-mediated perturbations of the POPE/POPC lipid bilayer structure affect the activity and structure of the membrane-bound Na+,K+-ATPase. It was found that both
Autor:
Miroslav Štěpánek, Zdeněk Pavlíček
Publikováno v:
Scopus-Elsevier
Process of glycation of human serum albumin (HSA) by DL-glyceraldehyde was studied using steady-state and time-resolved fluorescence spectroscopy in the course of 100 h. During this period, measurements of steady-state tryptophan (Trp) and non-trypto
Publikováno v:
Collection of Czechoslovak Chemical Communications. 62:1650-1662
The mechanism of protein glycation (nonenzymatic glycosylation) is complicated by existence of a variety of factors which affect both the kinetics and specificity of protein modification. In order to eliminate some of these factors, we have used a sy
Publikováno v:
Collection of Czechoslovak Chemical Communications. 61:160-170
The effect of electronic-excited species generated by systems 2-methylpropanal (MPAL) plus horse-radish peroxidase (HRP) and glyceraldehyde (GCA) plus HRP on Na+,K+-ATPase activity was investigated. For the system MPAL-HRP (which generates triplet ac
Publikováno v:
Collection of Czechoslovak Chemical Communications. 60:95-103
The copolymer of N-(2-hydroxypropyl)methacrylamide and N-[N-(N-methacryloylglycyl)glycyl]hexane- 1,6-diamine (17.6 mole %) was prepared as a model compound for investigation of the mechanism of enzymatically catalyzed generation of electronically exc
Autor:
Antonín Šenfeld, Zdeněk Pavlíček
Publikováno v:
Journal of Fluorescence. 3:219-222
In the present study the progress of the cross-linking reaction between glyceraldehyde (GCA) and human serum albumin (HSA) was followed by monitoring the development of new absorption bands characteristic of the cross-linked product. Generation of el
Publikováno v:
Collection of Czechoslovak Chemical Communications. 58:2715-2719
The chemical modification of tyrosyl residues in methaemoglobin led to the decreased peroxidase activity and thus confirmed the role of tyrosyl residues in the catalytic process. The ESR spectra of methaemoglobin modified by tetranitromethane showed
Publikováno v:
Collection of Czechoslovak Chemical Communications. 56:923-932
The ESR spectra of peroxidase systems of methaemoglobin-ascorbic acid-hydrogen peroxide and methaemoglobin-haptoglobin complex-ascorbic acid-hydrogen peroxide have been measured in the acetate buffer of pH 4.5. For the system with methaemoglobin an a