Linked Life Data

21385318

Source:http://linkedlifedata.com/resource/pubmed/id/21385318

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2011-5-4
pubmed:abstractText
The kinase noncatalytic C-lobe domain (KIND) is a putative protein-protein interaction module. Four KIND-containing proteins, Spir-2 (actin-nuclear factor), PTPN13 (protein tyrosine phosphatase), FRMPD2 (scaffold protein) and very-KIND (v-KIND) (brain-specific Ras guanine nucleotide exchange factor), have been identified to date. Uniquely, v-KIND has two KINDs (i.e. KIND1 and KIND2), whereas the other three proteins have only one. The functional role of KIND, however, remains unclear. We previously demonstrated that v-KIND interacts with the high-molecular weight microtubule-associated protein 2 (MAP2), a dendritic microtubule-associated protein, leading to negative regulation of neuronal dendrite growth. In the present study, we analyzed the structure-function relationships of the v-KIND-MAP2 interaction by generating a series of mutant constructs. The interaction with endogenous MAP2 in mouse cerebellar granule cells was specific to v-KIND KIND2, but not KIND1, and was not observed for the KINDs from other KIND-containing proteins. The binding core modules critical for the v-KIND-MAP2 interaction were defined within 32 residues of the mouse v-KIND KIND2 and 43 residues of the mouse MAP2 central domain. Three Leu residues at amino acid positions 461, 474 and 477 in the MAP2-binding core module of KIND2 contributed to the interaction. The MAP2-binding core module itself promoted dendrite branching as a dominant-negative regulator of v-KIND in hippocampal neurons. The results reported in the present study demonstrate the structural and functional determinant underlying the v-KIND-MAP2 interaction that controls dendrite arborization patterns.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1742-4658
pubmed:author
pubmed:copyrightInfo
© 2011 The Authors Journal compilation © 2011 FEBS.
pubmed:issnType
Electronic
pubmed:volume
278
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1651-61
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth--structure and function of the second kinase noncatalytic C-lobe domain.
pubmed:affiliation
Laboratory for Molecular Neurogenesis, RIKEN Brain Science Institute, Saitama, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't