The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins

The complete nucleotide sequences were determined for three transcripts each encoding a different variant surface glycoprotein (VSG) of Trypanosoma (Nannomonas) congolense. The nucleotide sequence was determined also for a transcript encoding a fourth VSG, but this was truncated. The data obtained c...

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Autores principales: Urakawa, T., Eshita, Y., Majiwa, Phelix A.O.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Elsevier 1997
Materias:
Acceso en línea:https://hdl.handle.net/10568/28612
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author Urakawa, T.
Eshita, Y.
Majiwa, Phelix A.O.
author_browse Eshita, Y.
Majiwa, Phelix A.O.
Urakawa, T.
author_facet Urakawa, T.
Eshita, Y.
Majiwa, Phelix A.O.
author_sort Urakawa, T.
collection Repository of Agricultural Research Outputs (CGSpace)
description The complete nucleotide sequences were determined for three transcripts each encoding a different variant surface glycoprotein (VSG) of Trypanosoma (Nannomonas) congolense. The nucleotide sequence was determined also for a transcript encoding a fourth VSG, but this was truncated. The data obtained confirm absence of the canonical polyadenylation signal, lack of conserved sequence elements in the 3' untranslated region, and heterogeneity in the spliced-leader acceptor site in the T. congolense VSG transcripts examined. A comparison of the amino acids deduced from the nucleotide sequences of the four VSGs and those of other VSGs published previously reveals a strong conservation of several structural domains, particularly cysteine residues located throughout most of the molecules. The majority of T. congolense VSGs analyzed in this study resemble most the N-terminal cysteine residue domain type B of T. brucei, characterized by a cysteine residue located toward the N-terminal end, a cluster of cysteine residues in the central region, and at least three cysteine residues between positions 250 and 300 of the molecules. One of the BSGs analyzed, ILNat3.3, did not fit into any of the classification schemes proposed for the VSGs so far studied, and thus may represent a different class of these surface molecules. Unlike VSGs of T. brucei, the T. congolense VSGs have no cysteine residues at the carboxy-terminal end. These data now make it possible to predict general primary structural features of T. congolense VSGs.
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spelling CGSpace286122024-05-01T08:19:08Z The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins Urakawa, T. Eshita, Y. Majiwa, Phelix A.O. trypanosoma congolense glycoproteins The complete nucleotide sequences were determined for three transcripts each encoding a different variant surface glycoprotein (VSG) of Trypanosoma (Nannomonas) congolense. The nucleotide sequence was determined also for a transcript encoding a fourth VSG, but this was truncated. The data obtained confirm absence of the canonical polyadenylation signal, lack of conserved sequence elements in the 3' untranslated region, and heterogeneity in the spliced-leader acceptor site in the T. congolense VSG transcripts examined. A comparison of the amino acids deduced from the nucleotide sequences of the four VSGs and those of other VSGs published previously reveals a strong conservation of several structural domains, particularly cysteine residues located throughout most of the molecules. The majority of T. congolense VSGs analyzed in this study resemble most the N-terminal cysteine residue domain type B of T. brucei, characterized by a cysteine residue located toward the N-terminal end, a cluster of cysteine residues in the central region, and at least three cysteine residues between positions 250 and 300 of the molecules. One of the BSGs analyzed, ILNat3.3, did not fit into any of the classification schemes proposed for the VSGs so far studied, and thus may represent a different class of these surface molecules. Unlike VSGs of T. brucei, the T. congolense VSGs have no cysteine residues at the carboxy-terminal end. These data now make it possible to predict general primary structural features of T. congolense VSGs. 1997-03 2013-05-06T07:01:00Z 2013-05-06T07:01:00Z Journal Article https://hdl.handle.net/10568/28612 en Limited Access Elsevier Experimental Parasitology;85: 215-224
spellingShingle trypanosoma congolense
glycoproteins
Urakawa, T.
Eshita, Y.
Majiwa, Phelix A.O.
The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins
title The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins
title_full The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins
title_fullStr The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins
title_full_unstemmed The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins
title_short The primary structure of Trypanosoma (Nannomonas) congolense variant surface glycoproteins
title_sort primary structure of trypanosoma nannomonas congolense variant surface glycoproteins
topic trypanosoma congolense
glycoproteins
url https://hdl.handle.net/10568/28612
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