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Title: SmPKC1, a new protein kinase C identified in the platyhelminth parasite Schistosoma mansoni
Authors: Bahia, Diana
Avelar, Livia
Mortara, Renato A.
Khayath, Naji
Yan, Yutao
Noel, Christophe
Capron, Monique
Dissous, Colette
Pierce, Raymond J.
Oliveira, Guilherme
Inst Pasteur
Fiocruz MS
Universidade Federal de São Paulo (UNIFESP)
Newcastle Univ
Santa Casa Misericordia Belo Horizonte
Keywords: protein kinase C
Schistosoma mansoni
signal transduction
Issue Date: 7-Jul-2006
Publisher: Elsevier B.V.
Citation: Biochemical and Biophysical Research Communications. San Diego: Academic Press Inc Elsevier Science, v. 345, n. 3, p. 1138-1148, 2006.
Abstract: Schistosoma mansoni signal transduction pathways are promising sources of target molecules for the development of novel control strategies against this platyhelminth parasite of humans. Members of the protein kinase C (PKC) family play key roles in such pathways activated by both receptor tyrosine kinases and other receptors, controlling a variety of physiological processes. Here, we report the cloning and molecular characterization of the first PKC identified in S. mansoni. Structural analysis indicated that SmPKC1 exhibits all the features typical of the conventional PKC subfamily. the gene structure was determined in silico and found to comprise a total of 15 exons and 14 introns. This structure is highly conserved; all intron positions are also present in the human PKC beta gene and most of the exon sizes are identical. Using PCR on genomic DNA we were able to show that putative orthologues of SmPKC1 are present in 9 Schistosoma species. SmPKC1 expression is developmentally regulated with the highest level of transcripts in miracidia, whereas SmPKC1 protein expression is higher in the sporocyst. the localization of SmPKC1 on the sporocyst ridge cyton and in schistosomula acetabular glands suggests that the enzyme plays a role in signal transduction pathways associated with larval transformation. (c) 2006 Elsevier Inc. All rights reserved.
ISSN: 0006-291X
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