ASB2α, an E3 Ubiquitin Ligase Specificity Subunit, Regulates Cell Spreading and Triggers Proteasomal Degradation of Filamins by Targeting the Filamin Calponin Homology 1 Domain*
Razinia Z, Baldassarre M, Cantelli G, Calderwood DA. ASB2α, an E3 Ubiquitin Ligase Specificity Subunit, Regulates Cell Spreading and Triggers Proteasomal Degradation of Filamins by Targeting the Filamin Calponin Homology 1 Domain*. Journal Of Biological Chemistry 2013, 288: 32093-32105. PMID: 24052262, PMCID: PMC3814802, DOI: 10.1074/jbc.m113.496604.Peer-Reviewed Original ResearchConceptsHematopoietic cell differentiationSpecificity subunitProteasomal degradationF-actin-rich structuresE3 ubiquitin ligase complexCell differentiationNormal subcellular localizationHomology 1 domainLoss of filaminUbiquitin acceptor sitesActin-binding domainCross-linking proteinsActin-binding siteLigase complexActin cytoskeletonTransmembrane proteinSubcellular localizationΑ-actinin1Transient expressionASB2αDegradation of filaminMinimal fragmentLysine residuesFilaminCell adhesionTalins and kindlins: partners in integrin-mediated adhesion
Calderwood DA, Campbell ID, Critchley DR. Talins and kindlins: partners in integrin-mediated adhesion. Nature Reviews Molecular Cell Biology 2013, 14: 503-517. PMID: 23860236, PMCID: PMC4116690, DOI: 10.1038/nrm3624.Peer-Reviewed Original ResearchConceptsIntegrin activationAdhesion complexesTalin headAmino-terminal headTalin-vinculin interactionsIntegrin cytoplasmic domainIntegrin activation pathwaysIntegrin extracellular domainIntegrin subunitsShort cytoplasmic tailDefective integrin activationPost-translational modificationsFull-length talinTalin-integrin interactionActin-binding siteImportant control pointTransmit chemicalTalin autoinhibitionDisease-causing mutationsKey PointsIntegrinsActin cytoskeletonProtein talinExtracellular ligandsFocal adhesionsIntegrin tails