2026-08-05 REL RCSB INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY RCSB RCSB 2025-07-21 2026-08-05 2026-08-05 2026-08-05 Cystic Fibrosis Foundation HUNT13XX0, HUNT18G0, HUNT20G0, 004400G222-Hunt, 007997G224-Hunt, FRANK16XX0, FRANK18G0 United States Alternative NBD1-binding geometry in channel-formed, ATP-bound, VX809-bound, T2a-nanobody-bound wild-type human CFTR (sharpened WalkerB2 local refinement map from cryoSPARC) Hunt JF Paige AS Cohen BM Goldberg PM Wang C Loughlin BJ Kappes JC Yang Z Jiang F Govaerts C Overtus M Rich Z cystic fibrosis, CFTR, nanobody, protein folding, MEMBRANE PROTEIN Hunt JF Paige AS Cohen BM Goldberg PM Wang C Loughlin BJ Kappes JC Yang Z Jiang F Govaerts C Overtus M Rich Z Nanobody-Driven Stabilization Synergistically Rescues F508del-CFTR and Reveals an Alternative Active State of the Channel To Be Published 0353 EMDB EMD-71762 associated EM volume Wild-type human CFTR solubilized in digitonin and cholesterol-hemisuccinate plus T2a nanobody in the presence of 2 mM MgATP Wild-type human CFTR solubilized in digitonin and cholesterol-hemisuccinate plus T2a nanobody in the presence of 2 mM MgATP 0 1 2 0.1725 Wild type human Cystic Fibrosis Transmembrane Conductance Regulator (hCFTR) 1 1 Homo sapiens T2a nanobody 2 2 Lama glama singleParticle particle 1.5 7.5 200.0 NaCl Sodium Chloride 3.0 MgCl2 Magnesium Chloride 50.0 C4H11NO3 Tris buffer 0.06 C56H92O29 Digitonin 2.0 C10H16N5O13P3 ATP Quantifoil R0.6/1 GOLD 300 GOLD HOLEY 50.0 PLASMA CLEANING OTHER
The grid was treated in a Solarus Plasma Cleaner 950 (Gatan Inc., USA) for 25 sec with O2/H2 flow-rates of 27.5/6.4 sccm and 15 W cleaning power.
 ETHANE 100 277 FEI VITROBOT MARK IV TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 100.0 2.7 0.2 2.9 105000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN 85.0 90.0 GIF Quantum ER 20 GATAN K3 BIOQUANTUM (6k x 4k) 5760 4092 1 11110 2.5 58.0
Movies comprised 40 frames collected in 2.5 seconds.
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