Národní úložiště šedé literatury Nalezeno 13 záznamů.  1 - 10další  přejít na záznam: Hledání trvalo 0.01 vteřin. 
Characterization of peptide proteinase inhibitors isolated from boar seminal plasma
Jelínková, Petra ; Tichá, M. ; Jonáková, Věra
Most of proteins of boar seminal plasma are present in this medium under physiological conditions in the form of aggregates and not of monomers. In the present communication we have shown that not only spermadhesins, but also proteinase inhibitors participate in the formation of associated complexes. Proteinase inhibitors were found after gel chromatographic separation mainly in the fraction with the lowest relative molecular mass. Two different types of serine proteinase inhibitors were isolated from boar seminal plasma ů (i) glycosylated inhibitor with Mr 12 kDa, (ii) non-glycosylated sperm-associated acrosin inhibitor with Mr 8 kDa, and a new type of low molecular weight protein that is probably composed of two subunits coupled by the -S-S- bridge. The proteinase inhibitor with Mr 8 kDa was proved to form a heterodimer with AQN 1 spermadhesin under physiological conditions, whereas inhibitor with Mr 12 kDa forms homodimers.
Characterization of peptide proteinase inhibitors isolated from boar seminal plasma
Jelínková, Petra ; Tichá, M. ; Jonáková, Věra
Seminal plasma of different mammalian species contains various types of proteins. Proteinase inhibitors are important components of seminal plasma and were found in all tested species. In the present communication we have shown that serine proteinase inhibitors participate (under physiological conditions) in the formation of associated complexes with other proteins from boar seminal plasma.
Separation of human seminal plasma proteins by selected chromatographic and electrophoretic methods
Kraus, Marek ; Tichá, M. ; Jonáková, Věra
We concentrated on proteins related to boar spermadhesins, which have not been identified, yet in human seminal plasma. We studied the cross-reactivity of antibodies against AQN and AWN boar spermadhesins with human seminal proteins.
Proteins from boar prostate secretion: their isolation and characterization
Maňásková, Pavla ; Ryšlavá, H. ; Tichá, M. ; Jonáková, Věra
Prostate proteins were separated by affinity chromatography on immobilized heparin. Major identified components of prostate secretion:beta-microseminoprotein, serotransferin, serum albumin, PSP I and II spermadhesins.
An approach for isolation of human seminal plasma proteins
Kraus, Marek ; Tichá, M. ; Jonáková, Věra
Human seminal plasma contains various type of protein. For their isolation were used these methods: affinity chromatography, gel chromatography, HPLC etc. The cross-reactivity of antibodies against boar seprmadhesing AQN and AWN was studied with human seminal proteins.
Properties of serine proteinase inhibitors from boar seminal plasma
Jelínková, Petra ; Maňásková, Pavla ; Tichá, M. ; Jonáková, Věra
Inhibitors of proteinases are important components of seminal plasma. Their biological function in seminal plasma is to protect protein components of seminal plasma and male and female reproductive tracts against proteolytic degradation. My work is concentrated on characterization of inihibitors found in seminal plasma.
Protein interactions involved in the formation of aggregated forms of boar seminal plasma proteins
Maňásková, Pavla ; Balínová, P. ; Tichá, M. ; Jonáková, Věra
Mutual interactions of isolated proteins were tested by means of gel chromatography. The results obtained confirmed an existence of interactions between spermadhesins of the AQN and AWN families as well as between proteins involved in the formation of heterodimer PSPI/PSPII.
Serine proteinase inhibitors isolated from boar seminal plasma
Jelínková, Petra ; Maňásková, Pavla ; Tichá, M. ; Jonáková, Věra
Serine proteinase inhibitors were found in boar seminal plasma. The work was concentrated on isolation and characterization of proteinase inhibitors and study of the existence of inhibitors in complexes with other proteins in seminal plasma.
Povrchové proteiny spermií a semenné plazmy ve fertilizaci
Jonáková, Věra ; Maňásková, Pavla ; Jelínková, Petra ; Balínová, P. ; Tichá, M.
Savčí fertilizace zahrnuje vysoce regulované biochemické děje. My jsme se zaměřili na studium interakce proteinů semenné plasmy se spermií a na vzájemné interakce proteinů ze semenné plasmy.

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