rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
50
|
pubmed:dateCreated |
2007-12-10
|
pubmed:abstractText |
The FK506-binding protein 38 (FKBP38) affects neuronal apoptosis control by suppressing the anti-apoptotic function of Bcl-2. The direct interaction between FKBP38 and Bcl-2, however, requires a prior activation of FKBP38 by the Ca2+ sensor calmodulin (CaM). Here we demonstrate for the first time that the formation of a complex between FKBP38 and CaM-Ca2+ involves two separate interaction sites, thus revealing a novel scenario of target protein regulation by CaM-Ca2+. The C-terminal FKBP38 residues Ser290-Asn313 bind to the target protein-binding cleft of the Ca2+-coordinated C-terminal CaM domain, thereby enabling the N-terminal CaM domain to interact with the catalytic domain of FKBP38 in a Ca2+-independent manner. Only the latter interaction between the catalytic FKBP38 domain and the N-terminal CaM domain activates FKBP38 and, as a consequence, also regulates Bcl-2.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0021-9258
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
14
|
pubmed:volume |
282
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
36496-504
|
pubmed:dateRevised |
2008-5-15
|
pubmed:meshHeading |
pubmed-meshheading:17942410-Apoptosis,
pubmed-meshheading:17942410-Calcium,
pubmed-meshheading:17942410-Calmodulin,
pubmed-meshheading:17942410-Cell-Free System,
pubmed-meshheading:17942410-Humans,
pubmed-meshheading:17942410-Multiprotein Complexes,
pubmed-meshheading:17942410-Neurons,
pubmed-meshheading:17942410-Protein Binding,
pubmed-meshheading:17942410-Protein Structure, Tertiary,
pubmed-meshheading:17942410-Proto-Oncogene Proteins c-bcl-2,
pubmed-meshheading:17942410-Tacrolimus Binding Proteins
|
pubmed:year |
2007
|
pubmed:articleTitle |
A novel calmodulin-Ca2+ target recognition activates the Bcl-2 regulator FKBP38.
|
pubmed:affiliation |
Max Planck Research Unit for Enzymology of Protein Folding, Weinbergweg 22, D-06120 Halle/Saale, Germany. edlich@enzyme-halle.mpg.de
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|