2022
Autoinhibition of the GEF activity of cytoskeletal regulatory protein Trio is disrupted in neurodevelopmental disorder-related genetic variants
Bircher JE, Corcoran EE, Lam TT, Trnka MJ, Koleske AJ. Autoinhibition of the GEF activity of cytoskeletal regulatory protein Trio is disrupted in neurodevelopmental disorder-related genetic variants. Journal Of Biological Chemistry 2022, 298: 102361. PMID: 35963430, PMCID: PMC9467883, DOI: 10.1016/j.jbc.2022.102361.Peer-Reviewed Original ResearchConceptsSpectrin repeatsGEF1 domainPleckstrin homology regionExchange factor domainKey regulatory mechanismCytoskeletal regulatory proteinsSmall GTPase Rac1Autoinhibitory constraintsAccessory domainsNeurodevelopmental disordersGEF activityMultiple neurodevelopmental disordersKinase domainHomology regionProtein TrioGTPase Rac1Regulatory proteinsRegulatory mechanismsFactor domainSRS-6Genetic variantsGef1Disease variantsEnzymatic activityBio-Layer Interferometry
2015
Neuronal ceroid lipofuscinosis with DNAJC5/CSPα mutation has PPT1 pathology and exhibit aberrant protein palmitoylation
Henderson MX, Wirak GS, Zhang YQ, Dai F, Ginsberg SD, Dolzhanskaya N, Staropoli JF, Nijssen PC, Lam TT, Roth AF, Davis NG, Dawson G, Velinov M, Chandra SS. Neuronal ceroid lipofuscinosis with DNAJC5/CSPα mutation has PPT1 pathology and exhibit aberrant protein palmitoylation. Acta Neuropathologica 2015, 131: 621-637. PMID: 26659577, PMCID: PMC4791186, DOI: 10.1007/s00401-015-1512-2.Peer-Reviewed Original ResearchConceptsNeuronal ceroid lipofuscinosesProtein palmitoylationDisease pathwaysPalmitoyl-protein thioesterase 1Forms of NCLEnzyme palmitoyl-protein thioesterase 1Disease-associated proteinsCommon disease pathwaysNCL genesQuantitative proteomicsCSPα mutationsSpecific enzymatic activityCSPαFunctional linkNeuronal ceroid lipofuscinosisGlobal changePPT1Synaptic proteinsEnzymatic activityCeroid lipofuscinosesPalmitoylationGenesCeroid lipofuscinosisNeurodegenerative disordersProtein
2009
Diversification of a Salmonella Virulence Protein Function by Ubiquitin-Dependent Differential Localization
Patel JC, Hueffer K, Lam TT, Galán JE. Diversification of a Salmonella Virulence Protein Function by Ubiquitin-Dependent Differential Localization. Cell 2009, 137: 283-294. PMID: 19379694, PMCID: PMC2673707, DOI: 10.1016/j.cell.2009.01.056.Peer-Reviewed Original ResearchConceptsEffector proteinsCellular functionsType III secretion systemBacterial effector proteinsUbiquitin-dependent mannerDifferent cellular compartmentsHost cellular machinerySame enzymatic activityVesicular traffickingCellular machineryProtein functionSecretion systemCellular compartmentsBacterial internalizationFunctional repertoirePlasma membraneRegulated mannerAkt activationHost cellsDifferential localizationBacterial replicationVirulence factorsEnzymatic activityBacterial pathogensProtein