0000000000466968

AUTHOR

Alexey M. Belkin

showing 2 related works from this author

β1-Integrin Cytoplasmic Subdomains Involved in Dominant Negative Function

1998

The beta1-integrin cytoplasmic domain consists of a membrane proximal subdomain common to the four known isoforms ("common" region) and a distal subdomain specific for each isoform ("variable" region). To investigate in detail the role of these subdomains in integrin-dependent cellular functions, we used beta1A and beta1B isoforms as well as four mutants lacking the entire cytoplasmic domain (beta1TR), the variable region (beta1COM), or the common region (beta1 deltaCOM-B and beta1 deltaCOM-A). By expressing these constructs in Chinese hamster ovary and beta1 integrin-deficient GD25 cells (Wennerberg et al., J Cell Biol 132, 227-238, 1996), we show that beta1B, beta1COM, beta1 deltaCOM-B, a…

Gene isoformTalinCytoplasmProtein ConformationIntegrinMolecular Sequence DataCHO CellsIntegrin alpha5Platelet Membrane GlycoproteinsArticleFocal adhesionchemistry.chemical_compoundMiceAntigens CDCricetinaeCell AdhesionAnimalsActininAmino Acid SequencePhosphorylationCell adhesionMolecular BiologyBinding SitesbiologyCell adhesion moleculeChinese hamster ovary cellIntegrin beta1Integrin beta3Tyrosine phosphorylationCell BiologyIntegrin alphaVProtein-Tyrosine KinasesRecombinant ProteinsCell biologyFibronectinsFibronectinchemistryFocal Adhesion Kinase 1Focal Adhesion Protein-Tyrosine KinasesMutationbiology.proteinCell Adhesion MoleculesSignal Transduction
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β1D Integrin Inhibits Cell Cycle Progression in Normal Myoblasts and Fibroblasts

1998

Integrins are alphabeta heterodimeric transmembrane receptors involved in the regulation of cell growth and differentiation. The beta1 integrin subunit is widely expressed in vivo and is represented by four alternatively spliced cytoplasmic domain isoforms. beta1D is a muscle-specific variant of beta1 integrin and a predominant beta1 isoform in striated muscles. In the present study we showed that expression of the exogenous beta1D integrin in C2C12 myoblasts and NIH 3T3 or REF 52 fibroblasts inhibited cell proliferation. Unlike the case of the common beta1A isoform, adhesion of beta1D-transfected C2C12 myoblasts specifically via the expressed integrin did not activate mitogen-activated pro…

IntegrinsRecombinant Fusion ProteinsMolecular Sequence DataIntegrinSignal transductionTransfectionCell adhesion; Integrins; Signal transduction; Alternative splicing isoforms; Cell proliferation; MyodifferentiationBiochemistryCD49cCell LineCollagen receptorMiceAlternative splicing isoformsCell surface receptorAnimalsAmino Acid SequenceMuscle SkeletalMolecular BiologyCell proliferationMyodifferentiationbiologyCell growthIntegrin beta1Cell CycleCell adhesionCell DifferentiationReceptors Interleukin-2Cell BiologyImmunohistochemistryMolecular biologyCell biologyEnzyme ActivationProto-Oncogene Proteins c-rafAlternative SplicingGenes rasIntegrin alpha MCalcium-Calmodulin-Dependent Protein Kinasesbiology.proteinIntegrin beta 6C2C12Journal of Biological Chemistry
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