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Peptidases of Trichobilharzia regenti (Schistosomatidae) and its molluscan host Radix peregra S. Lat. (Lymnaeidae): construction and screening of cDNA library from intramolluscan stages of the parasite
K. Dolecková, M. Kasný, L. Mikes, F. Mutapi, C. Stack, AP. Mountford, P. Horák,
Language English Country Czech Republic
Document type Journal Article, Research Support, Non-U.S. Gov't
NLK
Free Medical Journals
from 1966
ProQuest Central
from 2004-01-01 to 3 months ago
Health & Medicine (ProQuest)
from 2004-01-01 to 3 months ago
Public Health Database (ProQuest)
from 2004-01-01 to 3 months ago
ROAD: Directory of Open Access Scholarly Resources
from 1982
- MeSH
- Cysteine Endopeptidases genetics MeSH
- Gene Library MeSH
- Snails parasitology MeSH
- Cathepsin B genetics MeSH
- Cathepsin L MeSH
- Cathepsins genetics MeSH
- Molecular Sequence Data MeSH
- Polymerase Chain Reaction MeSH
- Peptide Hydrolases genetics MeSH
- Helminth Proteins genetics MeSH
- Schistosomatidae enzymology genetics growth & development MeSH
- Sequence Analysis, DNA MeSH
- Sequence Homology, Amino Acid MeSH
- Life Cycle Stages MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Trichobilharzia regenti is a neurotropic bird schistosome,causing cercarial dermatitis in humans. In this study, ZAP cDNA expression library from Radix peregra s. lat. hepatopancreases containing intramolluscan stages of T. regenti was constructed and screened using PCR with specific and degenerate primers, designed according to previously described serine and cysteine peptidases of other parasite species. Full-length sequences of cathepsins B1 and L, and two serine peptidases, named RpSP1 and RpSP2, were obtained. The protein-protein BLAST analysis and parallel control reactions with template from hepatopancreases of T. regenti non-infected snails revealed that only cathepsin B1 was of parasite origin. The remaining sequences were derived from the snail intermediate host, which implies that the initial source of parasite mRNA was contaminated by snail tissue. Regardless of this contamination, the cDNA library remains an excellent molecular tool for detection and identification of bioactive molecules in T. regenti cercariae.
References provided by Crossref.org
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