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Fyzikálně-chemická charakterizace peptidů a bílkovin kapilárními elektromigračními metodami
Kašička, Václav ; Koval, Dušan ; Šolínová, Veronika ; Sázelová, Petra ; Prusík, Zdeněk
High-performance capillary electromigration methods, zone electrophoresis, isotachophoresis, isoelectric focusing, affinity electrophoresis and electrokinetic chromatography, are presented as powerful tools for physicochemical characterization of peptides and proteins.
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Qualitative and quantitative microanalysis and preparative purification of biopeptides by capillary and continuous free-flow electrophoresis
Kašička, Václav ; Prusík, Zdeněk ; Sázelová, Petra ; Ježek, Jan ; Jiráček, Jiří ; Hlaváček, Jan ; Velek, Jiří ; Barth, Tomislav
High-performance capillary electrophoresis (HPCE) has been applied to qualitative and quantitative analysis of several biologically active peptides and their derivatives and fragments, e.g. insulins, insect oostatic hormones, and peptide and glycopeptide dendrimers.
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Receptor-selective enkephalin analogs
Pencheva, N. ; Barth, Tomislav
We investigated the opioid profiles of [Cys2]-enkephalin (enk) analogs and [D-Ala2,Leu5]-enkephalyl-Arg (dalargin) in in vitro bioassay system. The results showed that incorporation of hydrophilic Cys(O2NH2)2 into the enk molecule greatly increases the potency and selectivity of the analogs to ë-opioid receptors, while substitution of D-Ala2 and Arg6 into the molecule of [Leu5]-enk, to ć-opioid receptors.
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