Detailed Information on Publication Record
2015
Cystatin: the cysteine peptidase inhibitor from Eudiplozoon nipponicum (Monogenea)
ILGOVÁ, Jana, Lucie JEDLIČKOVÁ, Hana DVOŘÁKOVÁ, Libor MIKEŠ, Milan GELNAR et. al.Basic information
Original name
Cystatin: the cysteine peptidase inhibitor from Eudiplozoon nipponicum (Monogenea)
Authors
Edition
4th Workshop of European Centre of IchthyoParasitology, 2015
Other information
Language
English
Type of outcome
Konferenční abstrakt
Field of Study
10600 1.6 Biological sciences
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Science
ISBN
978-80-210-8016-4
Keywords in English
Eudiplozoon nipponicum; cystatin; recombinant protein
Změněno: 12/1/2016 16:19, Mgr. et Mgr. Jana Ilgová, Ph.D.
Abstract
V originále
Eudiplozoon nipponicum (Monogenea, Diplozooidae) typically inhabiting the gills of carp (Cyprinus carpio) is widely distributed Eurasian blood-feeding ectoparasite. The foregoing research of diplozoid Monogenea has been predominatly oriented towards understanding morphology and ecology of particular species. Nevertheless there is a lack of information regarding functional molecules synthesized by this taxonomic group. Among important molecules of various parasitic species belong cystatins (inhibitors of cystein peptidases). Besides regulation of endogenous processes in parasite bodies they play a substantial role e.g. in manipulation of the host immune system and/or regulation of blood digestion process. The aim of our experimental work is to reveal the presence, structure and function of E. nipponicum cystatin DNA/protein molecules using bioinformatic, molecular and proteomic methods. The gene coding cystatin of E. nipponicum was expressed in heterologous E. coli (BL21) system using pET19b expression vector. IPTG induced expression (22 °C, 6 hours) was analyzed on SDS-PAGE and soluble recombinant cystatin of E. nipponicum was purified on Ni-NTA agarose column. Production of cystatin was verified by both mass spectrometry (Orbitrap) and Western Blot using His-tag specific antibodies. Activity of recombinant inhibitor was tested by inhibitory assay using recombinant E. nipponicum cathepsin L and fluorogenic substrate Z-FR-AMC. Soluble recombinant cystatin was used for immunization of ICR mice. The polyclonal anti-cystatin sera reacted specifically with the crude extract of E. nipponicum and recombinant cystatin of E. nipponicum (Western blot).
Links
| GAP506/12/1258, research and development project |
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| GBP505/12/G112, research and development project |
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| MUNI/A/1484/2014, interní kód MU |
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