Cryo-EM structure of the benzodiazepine-sensitive alpha1-beta1-gamma2 heterotrimeric GABAA receptor in complex with GABA

2024-10-23 REL RCSB RCSB RCSB 2018-06-26 2018-08-01 2018-08-08 2024-10-23 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) R01 GM100400 United States Howard Hughes Medical Institute (HHMI) United States Cryo-EM structure of the benzodiazepine-sensitive alpha1-beta1-gamma2 heterotrimeric GABAA receptor in complex with GABA Phulera S Zhu H Neurotransmission, GABA Receptors, GABA, Cys Loop Receptors, Ion Channel, MEMBRANE PROTEIN Phulera S Zhu H Yu J Claxton DP Yoder N Yoshioka C Gouaux E Cryo-EM structure of the benzodiazepine-sensitive alpha 1 beta 1 gamma 2S tri-heteromeric GABAAreceptor in complex with GABA. Elife US 7 2018 30044221 doi:10.7554/eLife.39383 2050-084X EMD-8922 other EM volume 6dw1 FULLOVERLAP Triheteromeric alpha1-beta1-gamma2 GABAA receptor Triheteromeric alpha1-beta1-gamma2 GABAA receptor 0 1 2 3

In complex with alpha1 specific Fab

Rattus norvegicus Gamma-aminobutyric acid receptor subunit gamma-2 Rattus norvegicus 0.056894949 1 Homo sapiens LEVO MSSPNTWSTGSTVYSPVFSQKMTLWILLLLSLYPGFTSQKSDDDYEDYASNKTWVLTPKVPEGDVTVILNNLLEGYDNKL RPDIGVKPTLIHTDMYVNSIGPVNAINMEYTIDIFFAQTWYDRRLKFNSTIKVLRLNSNMVGKIWIPDTFFRNSKKADAH WITTPNRMLRIWNDGRVLYTLRLTIDAECQLQLHNFPMDEHSCPLEFSSYGYPREEIVYQWKRSSVEVGDTRSWRLYQFS FVGLRNTTEVVKTTSGDYVVMSVYFDLSRRMGYFTIQTYIPCTLIVVLSWVSFWINKDAVPARTSLGITTVLTMTTLSTI ARKSLPKVSYVTAMDLFVSVCFIFVFSALVEYGTLHYFVSNRKPSKDKDKKKKNPAPTIDIRPRSATIQMNNATHLQERD EEYGYECLDGKDCASFFCCFEDCRTGAWRHGRIHIRIAKMDSYARIFFPTAFCLFNLVYWVSYLYLLVPRGSRHHHHHHH HTETSQVAPA P18508 Gamma-aminobutyric acid receptor subunit alpha-1,Gamma-aminobutyric acid receptor subunit alpha-1 Rattus norvegicus 0.046267105 2 Homo sapiens LEVO MKKSRGLSDYLWAWTLILSTLSGRSYGQPSQDELKDNTTVFTRILDRLLDGYDNRLRPGLGERVTEVKTDIFVTSFGPVS DHDMEYTIDVFFRQSWKDERLKFKGPMTVLRLNNLMASKIWTPDTFFHNGKKSVAHNMTMPNKLLRITEDGTLLYTMRLT VRAECPMHLEDFPMDAHACPLKFGSYAYTRAEVVYEWTREPARSVVVAEDGSRLNQYDLLGQTVDSGIVQSSTGEYVVMT THFHLKRKIGYFVIQTYLPCIMTVILSQVSFWLNRESVPARTVFGVTTVLTMTTLSISARNSLPKVAYATAMDWFIAVCY AFVFSALIEFATVNYFTKRGTKKTFNSVSKIDRLSRIAFPLLFGIFNLVYWATYLNREPQLKAPTPHQLVPRGSHHHHHH HH P62813 P62813 Gamma-aminobutyric acid receptor subunit beta-1,Gamma-aminobutyric acid receptor subunit beta-1 Rattus norvegicus 0.044333012 2 Homo sapiens LEVO MWTVQNRESLGLLSFPVMVAMVCCAHSSNEPSNMSYVKETVDRLLKGYDIRLRPDFGGPPVDVGMRIDVASIDMVSEVNM DYTLTMYFQQSWKDKRLSYSGIPLNLTLDNRVADQLWVPDTYFLNDKKSFVHGVTVKNRMIRLHPDGTVLYGLRITTTAA CMMDLRRYPLDEQNCTLEIESYGYTTDDIEFYWNGGEGAVTGVNKIELPQFSIVDYKMVSKKVEFTTGAYPRLSLSFRLK RNIGYFILQTYMPSTLITILSWVSFWINYDASAARVALGITTVLTMTTISTHLRETLPKIPYVKAIDIYLMGCFVFVFLA LLEYAFVNYIFFGGTIPDLTDVNSIDKWSRMFFPITFSLFNVVYWLYYVHLVPRGSHHHHHHHH P15431 P15431 GAMMA-AMINO-BUTANOIC ACID 0.00010312 3 ABU singleParticle particle 0.15 7.3 20.0 C8H18N2O4S HEPES 200.0 NaCl sodium chloride 1.0 C24H46O11 Dodecyl Maltoside 1.5 C4H9NO2 gamma-Aminobutyric acid GRAPHENE OXIDE CONTINUOUS

unspecified

ETHANE 100 FEI VITROBOT MARK IV FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 -1.2 -2.5 120000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN FEI FALCON III (4k x 4k) COUNTING 1 1391 40.0 37.0 1

cryoSPARC was used to generate the initial model

C1 3.1 FSC 0.143 CUT-OFF RELION 2.1 68499 OTHER cryoSPARC

Stochastic Gradient Descent

MAXIMUM LIKELIHOOD RELION 2.1 emd_8923.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 311.52 311.52 311.52 90.0 90.0 90.0 Z Y X -15.883044999999999 32.438450000000003 -0.000000000002562 1.0 0.649 0.649 0.649 7.68 AUTHOR ::::EMDATABANK.org::::EMD-8923:::: Benzodiazepine-sensitive alpha1-beta1-gamma2 heterotrimeric GABAA receptor in complex with GABA FLEXIBLE FIT 0.74 REAL