2024
Imaging nanoscale-spatial oligomeric organization of membrane proteins directly from native membranes at single-molecule resolution
Walker G, Brown C, Ge X, Kumar S, Muzumdar M, Gupta K, Bhattacharyya M. Imaging nanoscale-spatial oligomeric organization of membrane proteins directly from native membranes at single-molecule resolution. Biophysical Journal 2024, 123: 348a. DOI: 10.1016/j.bpj.2023.11.2115.Peer-Reviewed Original Research
2023
Oligomeric organization of membrane proteins from native membranes at nanoscale spatial and single-molecule resolution
Walker G, Brown C, Ge X, Kumar S, Muzumdar M, Gupta K, Bhattacharyya M. Oligomeric organization of membrane proteins from native membranes at nanoscale spatial and single-molecule resolution. Nature Nanotechnology 2023, 19: 85-94. PMID: 38012273, PMCID: PMC10981947, DOI: 10.1038/s41565-023-01547-4.Peer-Reviewed Original ResearchMembrane proteinsNative membranesOligomeric organizationDiverse membrane proteinsMembrane protein biologyNative cell membranesTarget membrane proteinsNative membrane environmentSingle-molecule resolutionSingle-molecule platformReceptor tyrosine kinasesOligomeric distributionNative nanodiscsOligomerization statusProtein biologySmall GTPaseGrowth factor bindingMembrane environmentOligomeric assembliesTyrosine kinaseCritical regulatorOncogenic mutationsCell membraneProteinMembraneDirect determination of oligomeric organization of integral membrane proteins and lipids from intact customizable bilayer
Panda A, Giska F, Duncan A, Welch A, Brown C, McAllister R, Hariharan P, Goder J, Coleman J, Ramakrishnan S, Pincet F, Guan L, Krishnakumar S, Rothman J, Gupta K. Direct determination of oligomeric organization of integral membrane proteins and lipids from intact customizable bilayer. Nature Methods 2023, 20: 891-897. PMID: 37106230, PMCID: PMC10932606, DOI: 10.1038/s41592-023-01864-5.Peer-Reviewed Original ResearchConceptsIntegral membrane proteinsMembrane proteinsOligomeric organizationOligomeric stateNative mass spectrometry analysisFunctional oligomeric stateKey membrane componentMass spectrometry analysisNMS analysisTarget membraneLipid bindingMembrane componentsProteolipid vesiclesMembrane compositionLipid compositionSpectrometry analysisLipid membranesNeurotransmitter releaseProteinMembraneLipidsMembrane propertiesDirect determinationBilayersTransporters
2022
Deciphering the molecular organization of GET pathway chaperones through native mass spectrometry
Giska F, Mariappan M, Bhattacharyya M, Gupta K. Deciphering the molecular organization of GET pathway chaperones through native mass spectrometry. Biophysical Journal 2022, 121: 1289-1298. PMID: 35189106, PMCID: PMC9034188, DOI: 10.1016/j.bpj.2022.02.026.Peer-Reviewed Original ResearchConceptsNative mass spectrometryMultiprotein complexesOligomeric stateTail-anchored membrane proteinsLarge multiprotein complexesMass spectrometryChaperone complexMolecular modelingProtein complexesMutational perturbationsMembrane proteinsOligomeric organizationDimerization interfaceIndependent proteinsNative MSEndoplasmic reticulumUnstructured domainsConventional structure determinationStructural organizationMolecular organizationMolecular interfaceCyclic architectureProteinStructure determinationCrystal structure