Characterization, cloning and host-protective activity of a 30-kilodalton glycoprotein secreted by the parasitic stages of Trichostrongylus colubriformis

The helminth Trichostrongylus colubriformis is a parasitic nematode infecting the small intestine of sheep. We report the isolation and characterization of a 30-kDa glycoprotein capable of partially protecting guinea-pigs against the parasite. This glycoprotein is secreted by the L4 and adult parasi...

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Veröffentlicht in:Molecular and biochemical parasitology 1990, Vol.41 (2), p.167-176
Hauptverfasser: Savin, Keith W., Dopheide, Theo A.A., Frenkel, Maurice J., Wagland, Barry M., Grant, Warwick N., Ward, Colin W.
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container_end_page 176
container_issue 2
container_start_page 167
container_title Molecular and biochemical parasitology
container_volume 41
creator Savin, Keith W.
Dopheide, Theo A.A.
Frenkel, Maurice J.
Wagland, Barry M.
Grant, Warwick N.
Ward, Colin W.
description The helminth Trichostrongylus colubriformis is a parasitic nematode infecting the small intestine of sheep. We report the isolation and characterization of a 30-kDa glycoprotein capable of partially protecting guinea-pigs against the parasite. This glycoprotein is secreted by the L4 and adult parasitic stages of the worm. The sequence of three separate cDNA clones predicts the polypeptide to be about 15 kDa, with four N-linked carbohydrate chains and an internal disulphide bond. The clones also indicate the existence of sequence variability in this antigen. Limited sequence homology to a porcine intestinal peptide suggests an influence on host gut physiology.
doi_str_mv 10.1016/0166-6851(90)90179-P
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We report the isolation and characterization of a 30-kDa glycoprotein capable of partially protecting guinea-pigs against the parasite. This glycoprotein is secreted by the L4 and adult parasitic stages of the worm. The sequence of three separate cDNA clones predicts the polypeptide to be about 15 kDa, with four N-linked carbohydrate chains and an internal disulphide bond. The clones also indicate the existence of sequence variability in this antigen. 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Psychology</topic><topic>Gene</topic><topic>Genes. Genome</topic><topic>Glycoprotein</topic><topic>glycoproteins</topic><topic>Glycoproteins - genetics</topic><topic>Glycoproteins - immunology</topic><topic>Glycoproteins - isolation &amp; purification</topic><topic>Guinea Pigs</topic><topic>Helminth Proteins - genetics</topic><topic>Helminth Proteins - immunology</topic><topic>Helminth Proteins - isolation &amp; purification</topic><topic>Molecular and cellular biology</topic><topic>Molecular genetics</topic><topic>Molecular Sequence Data</topic><topic>Nematode</topic><topic>nucleotide sequences</topic><topic>RNA, Messenger - biosynthesis</topic><topic>Secretion</topic><topic>sheep</topic><topic>Trichostrongyloidiasis - immunology</topic><topic>Trichostrongylosis - immunology</topic><topic>Trichostrongylus</topic><topic>Trichostrongylus - genetics</topic><topic>Trichostrongylus - immunology</topic><topic>Trichostrongylus - metabolism</topic><topic>Trichostrongylus colubriformis</topic><topic>Vaccines - immunology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Savin, Keith W.</creatorcontrib><creatorcontrib>Dopheide, Theo A.A.</creatorcontrib><creatorcontrib>Frenkel, Maurice J.</creatorcontrib><creatorcontrib>Wagland, Barry M.</creatorcontrib><creatorcontrib>Grant, Warwick N.</creatorcontrib><creatorcontrib>Ward, Colin W.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Nucleic Acids Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biochemistry Abstracts 3</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Molecular and biochemical parasitology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Savin, Keith W.</au><au>Dopheide, Theo A.A.</au><au>Frenkel, Maurice J.</au><au>Wagland, Barry M.</au><au>Grant, Warwick N.</au><au>Ward, Colin W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization, cloning and host-protective activity of a 30-kilodalton glycoprotein secreted by the parasitic stages of Trichostrongylus colubriformis</atitle><jtitle>Molecular and biochemical parasitology</jtitle><addtitle>Mol Biochem Parasitol</addtitle><date>1990</date><risdate>1990</risdate><volume>41</volume><issue>2</issue><spage>167</spage><epage>176</epage><pages>167-176</pages><issn>0166-6851</issn><eissn>1872-9428</eissn><coden>MBIPDP</coden><abstract>The helminth Trichostrongylus colubriformis is a parasitic nematode infecting the small intestine of sheep. We report the isolation and characterization of a 30-kDa glycoprotein capable of partially protecting guinea-pigs against the parasite. This glycoprotein is secreted by the L4 and adult parasitic stages of the worm. The sequence of three separate cDNA clones predicts the polypeptide to be about 15 kDa, with four N-linked carbohydrate chains and an internal disulphide bond. The clones also indicate the existence of sequence variability in this antigen. Limited sequence homology to a porcine intestinal peptide suggests an influence on host gut physiology.</abstract><cop>Shannon</cop><pub>Elsevier B.V</pub><pmid>2204828</pmid><doi>10.1016/0166-6851(90)90179-P</doi><tpages>10</tpages></addata></record>
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identifier ISSN: 0166-6851
ispartof Molecular and biochemical parasitology, 1990, Vol.41 (2), p.167-176
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source MEDLINE; Access via ScienceDirect (Elsevier)
subjects Amino Acid Sequence
amino acid sequences
Animals
Antigens, Helminth - genetics
Antigens, Helminth - immunology
Antigens, Helminth - isolation & purification
Base Sequence
Biological and medical sciences
Blotting, Northern
clones
Cloning, Molecular
Disulfides
DNA
DNA - genetics
Escherichia coli - genetics
Expression
Fundamental and applied biological sciences. Psychology
Gene
Genes. Genome
Glycoprotein
glycoproteins
Glycoproteins - genetics
Glycoproteins - immunology
Glycoproteins - isolation & purification
Guinea Pigs
Helminth Proteins - genetics
Helminth Proteins - immunology
Helminth Proteins - isolation & purification
Molecular and cellular biology
Molecular genetics
Molecular Sequence Data
Nematode
nucleotide sequences
RNA, Messenger - biosynthesis
Secretion
sheep
Trichostrongyloidiasis - immunology
Trichostrongylosis - immunology
Trichostrongylus
Trichostrongylus - genetics
Trichostrongylus - immunology
Trichostrongylus - metabolism
Trichostrongylus colubriformis
Vaccines - immunology
title Characterization, cloning and host-protective activity of a 30-kilodalton glycoprotein secreted by the parasitic stages of Trichostrongylus colubriformis
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