a 2015

Cystatin: the cysteine peptidase inhibitor from Eudiplozoon nipponicum (Monogenea)

ILGOVÁ, Jana, Milan GELNAR and Martin KAŠNÝ

Basic information

Original name

Cystatin: the cysteine peptidase inhibitor from Eudiplozoon nipponicum (Monogenea)

Authors

ILGOVÁ, Jana (703 Slovakia, guarantor, belonging to the institution), Milan GELNAR (203 Czech Republic, belonging to the institution) and Martin KAŠNÝ (203 Czech Republic, belonging to the institution)

Edition

9th International Symposium of Fish Parasites, 2015

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/15:00081124

Organization unit

Faculty of Science

Keywords in English

Eudiplozoon nipponicum; cystatin; recombinant protein
Změněno: 16/10/2015 11:49, 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 produced by this taxonomic group. Among important molecules produced by 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 blood digestion. 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 transcriptomic data of E. nipponicum was screened for the presence of cystatin sequences. The partial nucleotide sequence was identified, amplified, completed using 3’and 5’ RACE PCR, cloned and sequenced. Gene coding 98 amino acid cystatin of Eudiplozoon nipponicum with predicted molecular weight 10,85 kDa and theoretical pI 6,27 was inserted into pET19b expression vector a cloned into E. coli competent cells (BL 21 strain). Expression was induced by IPTG at 37 °C. The production of recombinant cystatin by E. coli host cells was analysed on SDS-PAGE (Coomasie staining) and verified by mass spectrometry (Orbitrap). Recombinant protein was produced in the insoluble form - incorporated into inclusion bodies. The cystatin from E. nipponicum will be subsequently solubilized and further tested for its functional and structural properties.

Links

GAP506/12/1258, research and development project
Name: Interakce hostitel-parazit u krevsajících diplozoidních monogeneí: Výzkum vysoce specializovaných adaptací k parazitismu
Investor: Czech Science Foundation
GBP505/12/G112, research and development project
Name: ECIP - Evropské centrum ichtyoparazitologie
Investor: Czech Science Foundation
MUNI/A/1484/2014, interní kód MU
Name: Analýzy diverzity biologických systémů různých úrovní a na různých škálách terestrického a akvatického prostředí (Acronym: BIDA4)
Investor: Masaryk University, Category A