Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-9-24
pubmed:abstractText
The presence of Ca2+/calmodulin (Ca2+/CaM)-dependent protein kinase (TcCaM K) and some stage-specific substrates that appeared during morphogenesis of the parasite Trypanosoma cruzi were identified. Western blot analysis using a polyclonal antibody against rat brain CaM K type 11 recognized the same subunit composition (52, 59/62 kDa) observed for the mammalian enzyme, as well as the previously characterized TcCaM K found in epimastigote forms. Differential protein phosphorylation profiles were observed after enzyme activation in the stages of T. cruzi. Co-immunoprecipitation of stage-specific substrates with the TcCaM K suggested that the enzyme might be involved in the phosphorylation of a different set of proteins through the life cycle. Three phosphoproteins, pp105 and pp87 from epimastigotes and pp23 from trypomastigotes were identified as potential substrates for TcCaM K. The characterization of these endogenous stage markers might be a useful tool to understand the developmental cycles of these pathogenic protozoa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1066-5234
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
392-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Stage-specific substrate phosphorylation by a Ca2+/calmodulin-dependent protein kinase in Trypanosoma cruzi.
pubmed:affiliation
Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI), Universidad de Buenos Aires, Argentina. ogueta@jsei.ucla.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't