Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2005-2-23
pubmed:abstractText
Pyridinyl imidazole inhibitors of p38 mitogen-activated protein kinase (MAPK) have been used extensively in vitro and in vivo to investigate the role of p38 in physiological processes. As with other pharmacological inhibitors, non-specific targets of the p38 inhibitors have been reported. We have found that the protein kinase receptor interacting protein-2 (RIP2) is another target for the family of p38 inhibitors. The autophosphorylation of RIP2 was inhibited in vitro by the p38 inhibitors SB220025, SB203580 and PD169316 at concentrations comparable to those used to inhibit p38. We also identified two new in vitro substrates for RIP2, myelin basic protein and histone H3 with apparent Km values of 2.1 microM and 0.65 microM, respectively. The ability of RIP2 to phosphorylate these two substrates was sensitive to the p38 inhibitors as well. As was shown for p38alpha, a conserved threonine in the kinase domain of RIP2 is required for sensitivity to the inhibitors, indicating that the mechanism of inhibition of RIP2 is similar to that of p38. These results demonstrate that the pyridinyl imidazole inhibitors block RIP2 as well as p38 kinase activity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0300-8177
pubmed:author
pubmed:issnType
Print
pubmed:volume
268
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-40
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Inhibition of RIP2/RIck/CARDIAK activity by pyridinyl imidazole inhibitors of p38 MAPK.
pubmed:affiliation
Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, CO, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, N.I.H., Extramural