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Plant peptides and proteins with antimicrobial activities and possibilities of their application
LORENC, František
This work deals with antimicrobial peptides and proteins in plants. Antimicrobial peptides form one part of non-specific immunity most eukaryotic and prokaryotic organisms. Their primary function is to eliminate the attacks of microbial pathogens, by which are the target organisms exposured. These proteins have low molecular weight. Most of them form a group of PR (Pathogenesis-related) proteins. Thanks to their antimicrobial effects have the antimicrobial peptides and proteins a great potential in pharmaceutical industry, medicine and biotechnology or in protection against plant diseases and also in other applications. The aim of this work is to describe the primary fission of plant antimicrobial peptides and proteins, the mechanisms of their antimicrobial action and characteristics of the main groups of PR-proteins. In the end of this work is described the current research and applications and potential uses in the future.
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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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