a 2015

Expression of a cysteine peptidase inhibitor from Eudiplozoon nipponicum (Monogenea).

ILGOVÁ, Jana, Milan GELNAR and Martin KAŠNÝ

Basic information

Original name

Expression of a 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

22nd Helminthological Days, 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

RIV identification code

RIV/00216224:14310/15:00080924

Organization unit

Faculty of Science

ISBN

978-80-7444-032-8

Keywords in English

cystatin; recombinant protein expression; Eudiplozoon nipponicum
Změněno: 24/7/2015 10:11, Mgr. et Mgr. Jana Ilgová, Ph.D.

Abstract

V originále

Our research is focused primarily on expression and characterization of cystatin produced by platyhelminth Eudiplozoon nipponicum. This blood-feeding ectoparasite of Cyprinus carpio (common carp) is a representative of the family Diplozooidae (Monogenea). Cystatins – cysteine peptidase inhibitors are produced by a wide range of organisms and belong to bioactive molecules with immunomodulatory and inhibitory properties. The transcriptomic data of E. nipponicum were analyzed for the presence of cystatin sequences. The partial nucleotide sequence was identified and the whole gene sequence was obtained by PCR, 3’/5’ RACE PCR and sequencing using cDNA as a template. Gene coding 98 amino acid cystatin of E. nipponicum with predicted molecular weight 10.85 kDa and theoretical pI 6.27 was inserted into pET19b expression vector and the obtained construct was transferred into E. coli competent cells (BL 21 strain). Expression of recombinant cystatin molecule was induced by adding IPTG to the cultivation media. The success of production was confirmed by mass spectrometry in a dominant protein band after the fractionation of the E. coli derived protein mixture by SDS-PAGE. Recombinant protein was produced in the insoluble form incorporated into inclusion bodies. The cystatin from E. nipponicum will be subsequently solubilized and 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