Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-9-15
pubmed:databankReference
pubmed:abstractText
A novel intracellular calcium-binding protein from Echinococcus granulosus is described in this work. A cDNA was isolated from a lambdagt11 protoscolex expression library and the deduced amino acid sequence has at least fifteen sequentially repeated twelve-residue repeats that resemble the calcium-binding loop of EF-hands; however, the dodecamer motif has no flanking helices. The cDNA was expressed in Escherichia coli using the pGEX vector, and a recombinant fusion protein (EgCaBP1-GST) was obtained. The recombinant fusion protein binds calcium when assayed with 45Ca. It is possible that the calcium-binding motifs present a secondary structure similar to the parallel beta roll structure described for an alkaline protease from Pseudomonas aeruginosa. A native protein of more than 300 kDa was recognized by an anti-EgCaBP1 monoclonal antibody by Western-blot analysis. Immunohistochemistry using a pool of anti-EgCaBP1-GST mouse sera demonstrated a strong association of the protein with calcareous corpuscles. The possible role of this protein and that of the calcareous corpuscles in the protoscolex are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
237
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
451-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
A protein with a novel calcium-binding domain associated with calcareous corpuscles in Echinococcus granulosus.
pubmed:affiliation
Centro de Biotecnologia and Departamento de Biotecnologia, Universidade Federal do Rio, Grande do Sul, Porto Alegre, Rio Grande do Sul, 91501-970, Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't