Linked Life Data

16332290

Source:http://linkedlifedata.com/resource/pubmed/id/16332290

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 4
pubmed:dateCreated
2006-3-24
pubmed:abstractText
Tubulin is the predominant phosphoprotein in Trypanosoma cruzi epimastigotes and is phosphorylated by a protein kinase CK2. Interestingly, the presence or absence of divalent cations affected the solubilization of a pool of the parasite tubulin and the CK2 responsible for its phosphorylation. This fraction of tubulin and its kinase co-eluted using phosphocellulose, DEAE-Sepharose and Sephacryl S-300 chromatographies. Anti-alpha tubulin antibodies co-immunoprecipitated both tubulin and the CK2 responsible for its phosphorylation, and anti-CK2 alpha-subunit antibodies immunoprecipitated radioactively labelled alpha and beta tubulin from phosphorylated epimastigote homogenates. Additionally, native polyacrylamide gel electrophoresis of the purified and radioactively labelled fraction containing tubulin and its kinase demonstrated the phosphorylation of a unique band that reacted with both anti-CK2 alpha-subunit and anti-tubulin antibodies. Together, these results establish a strong interaction between a pool of the heterodimeric alpha/beta tubulin and a CK2 in this parasite. Hydrodynamic measurements indicated that the T. cruzi tubulin-CK2 complex is globular with an estimated size of 145.4-147.5 kDa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0031-1820
pubmed:author
pubmed:issnType
Print
pubmed:volume
132
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
511-23
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Tight binding between a pool of the heterodimeric alpha/beta tubulin and a protein kinase CK2 in Trypanosoma cruzi epimastigotes.
pubmed:affiliation
Departamento de Biología Celular, Universidad Simón Bolívar, Apartado 89.000, Valle de Sartenejas, Caracas 1081-A, Venezuela.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't