Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1999-12-14
pubmed:abstractText
Bruton's tyrosine kinase (Btk) is considered an essential signal transducer in B-cells. Mutational defects are associated with a severe immunodeficiency syndrome, X-chromosome linked agammaglobulinemia (XLA). Here we show by coimmunoprecipitation that a member of the protein kinase C (PKC) family, PKCmu, is constitutively associated with Btk. Neither antigen receptor (Ig) crosslinking nor stimulation of B-cells with phorbol ester or H(2)O(2) affected Btk/PKCmu interaction. GST precipitation analysis revealed association of the Btk pleckstrin/Tec homology domain with PKCmu. Transient overexpression of PKCmu deletion mutants as well as expression of selected PKCmu domains in 293T cells revealed that both the kinase domain and the regulatory C1 region are independently capable of binding to the Btk PH-TH domain. These data show the existence of a PKCmu/Btk complex in vivo and identify two PKCmu domains that participate in Btk interaction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
12
pubmed:volume
461
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
68-72
pubmed:dateRevised
2011-11-2
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Bruton's tyrosine kinase (Btk) associates with protein kinase C mu.
pubmed:affiliation
Institute of Cell Biology and Immunology, University of Stuttgart, Allmandring 31, 70569, Stuttgart, Germany. franz-josef.johannes@po.uni-stuttgart.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't