2026-09-02 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY STRUCTURE_SUMMARY em_admin entity _em_admin.last_update _entity.formula_weight DATABASE_REFERENCES citation _citation.journal_volume _citation.page_first _citation.page_last STRUCTURE_SUMMARY chem_comp_atom chem_comp_bond em_admin pdbx_entry_details pdbx_modification_feature _em_admin.last_update _pdbx_entry_details.has_protein_modification REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY chem_comp chem_comp_atom chem_comp_bond em_admin entity pdbx_modification_feature pdbx_nonpoly_atom_coordination pdbx_nonpoly_atom_coordination_sphere pdbx_nonpoly_atom_coordination_sphere_order pdbx_validate_chiral _chem_comp.formula _chem_comp.formula_weight _em_admin.last_update _entity.formula_weight PDBe PDBe 2022-09-27 2023-03-29 2023-03-29 2026-09-02 The Swedish Foundation for Strategic Research FFL15:0325 Sweden Cancerfonden 2017/1041 Sweden European Research Council (ERC) ERC-2018-StG-805230 European Union Knut and Alice Wallenberg Foundation 2018.0080 Sweden Cryo-EM structure of succinate dehydrogenase complex (complex-II) in respiratory supercomplex of Tetrahymena thermophila Muhleip A Kock Flygaard R Baradaran R Amunts A Ciliate, Mitochondrial, Complex-II, Supercomplex, ELECTRON TRANSPORT Muhleip A Flygaard RK Baradaran R Haapanen O Gruhl T Tobiasson V Marechal A Sharma V Amunts A Structural basis of mitochondrial membrane bending by the I-II-III 2 -IV 2 supercomplex. Nature UK 615 934 938 2023 36949187 doi:10.1038/s41586-023-05817-y 1476-4687 0006 NATUAS Muhleip A Flygaard RK Haapanen O Baradaran R Gruhl T Tobiasson V Marechal A Sharma V Amunts A Structural basis of mitochondrial membrane bending by I-II-III2-IV2 supercomplex Biorxiv US 2022 doi:10.1101/2022.06.26.497646 2692-8205 8b6g FULLOVERLAP EMDB EMD-15866 associated EM volume
Cryo-EM structure of succinate dehydrogenase complex (complex-II) in respiratory supercomplex of Tetrahymena thermophila
 Succinate dehydrogenase complex (complex-II) Succinate dehydrogenase complex (complex-II) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Complex-II of the mitochondrial respiratory chain in Tetrahymena thermophila
Tetrahymena thermophila Mitochondrion 0.305 Diphthamide synthesis protein Tetrahymena thermophila SB210 0.022894335999999998 1 LEVO MLTQRFYMIQFTKEEQSSEEKYLKTREREEDRKKELMHPQKVLNKKENKRKALLSKNQQNKKLIKYLNLNKRQEKLININ QEEMSILPPLQYTYSNEESLELLIHSIKGNKDCNSERKAFNLCRSTVLGKHVEPEKCLDKALVFVNCFQKVRRDESAACQ SAFNSTLECGKKYSESTISLGSSCQSQLDAYLNCK I7LX66 Transmembrane protein, putative Tetrahymena thermophila SB210 0.009168365999999999 1 LEVO MARLWWTLDPSKYYLKQISSGGRNEILFTVLGVTAAYWYFGNKRCEHYWRRQIDNCQSWSRAQNINGNNLTVKQYF Q22HD6 Transposase Tetrahymena thermophila SB210 0.011027419 1 LEVO MKLDQIISYYITPVRRFDKNLTAEQIYEQYQQAAQFNEIDAFTNIRFHRKFKEYIQTQEQSDYLYEKAKQISTLAQKMFE KKFPEYYTQ W7XBF5 Succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrial Tetrahymena thermophila SB210 0.070082758 1 LEVO MFKYLSKIQRVTLHSKVSKNFAVLSKDHPEKGPSQGHLTDKYTVIDHTYDAIVVGAGGAGLRAAFGLVEEGFKTACITKL FPTRSHTVAAQGGINAALGNMTEDDWKWHFYDTVKGSDWLGDQDAIQYMTREAPAAVLELESYGLPFSRTPEGKIYQRAF GGQSLKFGKGGQARRTACAADRTGHAMLHTLFGRSLAYNCNFFIEYFVIDLIMDEEGACRGVICMSMADGSIHRIRAHYT VLAAGGYGRSYLSCTAAHTCTGDGMALATRAGLPLEDPEFVQFHPTGIYGSGCLMTEGCRGEGGILVNSNGEAFMEKYAP TAKDLASRDVVSRAMTIEILEGRGVGPKKDHIFLQLHHLSPETLHQRLPGISETARIFAGVDVTKEPAPVVPTVHYNMGG VPTNWKTEVITQDKNGKDKIVPGLLAAGENACASVHGANRLGANSLLDIVVFGRAAAKLVKEKLKPGTPHKDLPKNAGEQ ALARLDKYRFANGEYTTHHVRTAMQETMQRHAAVFRIEKLMAEGVQKLDHIYEQSKSLKTFDRGLVWNTDLIETLELENL LLCSKQTLLAGLLRKESRGAHARDDFKERDDKNWMKHSLTWIKDVNTGKTEVTYRDVINHTLDSEVTPVPPAKRSY Q23DI3 1.3.5.1 DUF4885 domain-containing protein Tetrahymena thermophila SB210 0.012979428 1 LEVO MFSDFNMYEAKVFLKAVADAQNTFRQTAQQENQLARYESQSQSLLNGSTSGAISITGDNIQQGRNFKALKEVKLFQYSNE IFKKYLAGFDSFSGDYTAFKKFLNESVKKIEQDA Q22YL0 Succinate dehydrogenase (quinone) Tetrahymena thermophila SB210 0.036002402 1 LEVO MLRTIFKTRSLFNASVSRFGSGFDRIAESNDATSICLESISGTIKGLQKANYVVEHNPNLTSEEKKHLKQFLVYRYNPAD PHDQPKYVSYWCDIKKFPPMFLDAILYIKNELDPTLSIRRSCREGICGSCAVNCDGLHTLACISGFNRDLSKPTIITPLG HMFILKDLVVDMTNFYAQYKMIEPYLKRKTPKPDANKEYPQSPEQRALLDGLYECVLCAACSTSCPSYWWHPDRYLGPAI LQQAYRWIVDSRDEYTQERIERIAEDVRLDDCQQIGMCSFTCPKGLNPQLSLKNLMDMVKDFRQKRIEQEVL I7M403 1.3.5.1 Transmembrane protein, putative Tetrahymena thermophila SB210 0.035124292999999994 1 LEVO MIKYLLHQLFIYIYVAEVLLGCIFAFAETVFFHSDQDEDYFLQIKQIQIKNQKRFRNNQKKSRSFKKKIINQQLVSKMVR LNLKSNVDQNEYPFLAKWDKDMRQNYEEYQNRIDATTYHLQRSQRGIAVFGEWMYPRYFQKDILELEVLRRKQQLGKIYP EEVSSYTQINPDIANDLNLTFNAKLLWPVRGMTVGAGFFAFAHLFNLPYSFRLGLFVLPTAVELAFTWGNKTSQFKSIEF MDYLLQYRVSKALLEKNAKHFAEKKAAYQKEINSSQSVQDLYNQLITLVSEQAPSE Q248F8 SDHTT3 Tetrahymena thermophila SB210 0.02362773 1 LEVO MSLVSLFKNTFLKSRVIGLSFQAQRVMAQMAKTDFENPDEHFLLNDAMKYNELVFYGRLAENWSINPELFGKAELAKYNE AKQTLIDFNQYHALVQNLHEFYWELKTIYLELSRGVATSNFHNKREVTHSIIESDIKNSIHKYIQLIDDLKDYPEWQHKV REEIGYYAHMIYTSVNHDGNFPEIFKEFNKVDSLYYFK I7MEX7 Transmembrane protein, putative Tetrahymena thermophila SB210 0.011188824 1 LEVO MLDDTKYIQMAQKFPRNVSVQLNKKLFVTRTWFRNYYFVGVFGIFAYFIYNQPKIFAPFSGYPTTVAYKAQPDFLNDQVI FYSQQRQNTLKNF Q24CW6 NmrA domain-containing protein Tetrahymena thermophila SB210 0.036376008 1 LEVO MSLLVVSGANKVGQGIIRGLHSSGKYEKIVVADVFPKYYYLERYLRFKDTLTQNKTKLEEVKLTDKTDLESAIKKASHVV YVTHDYYYNVPSKLNLIKHTATLSRSAGVKRLVNVTPVENDHYGESQAVLAATQSENEARVAFPGLVELKTDLTFGQDST VVSELLTRLAYGKSIYFKPSAHRISPVHTLNVAEATQRILENNSLQNLRYVARGTESFDWNTIISTLAAAIGKNANLNQN PLENIISPLSDNIVSQTVHHHHYLNLTRFINQYQEPKQTEHHELTNLGVNNLVKFSEFYKPNSVSTQDYQIKTGLSHWAH CL Q24I09 Transmembrane protein, putative Tetrahymena thermophila SB210 0.011957518 1 LEVO MNHSCQKVFEGFVSALYDTSYFFRNFGPFKATIHYATYANYLAQNWAPRVSYIETSTPAYTLAKNKYAVYIVYGLIGGAL IHNYMLDNKAAQKSQQYYLKHRD Q23S01 Transmembrane protein, putative Tetrahymena thermophila SB210 0.007244434 1 LEVO MRRIFWNFKTAFVGLPMFSLAPKNILVYPIVVGVPLYTFIVLQNSVRGFAYFDEYDSDVKEN W7XF00 Cytochrome b-c1 complex subunit 8 Tetrahymena thermophila SB210 0.0070360200000000005 1 LEVO MRTKLYNAAYFLLNNNESFGHSFGIRLKIVGLNTWIVGYAVSRYYFSSLRVKAAQDERFE Q23RH8 SDHTT11 Tetrahymena thermophila 0.005158135 1 LEVO LPIRNIQFARYHYLAAVTVFTYFATRCCLLDYKKYYPLASVKK SDHD Tetrahymena thermophila 0.0055666249999999995 1 LEVO MFKELIHIFRTYYITFRYLKKSNINFLKNLSYTLIAYYLIINFQ CARDIOLIPIN 0.0014640429999999997 7 CDL CALCIUM ION 4.0078e-05 2 CA FLAVIN-ADENINE DINUCLEOTIDE 0.0007855499999999999 1 FAD FE2/S2 (INORGANIC) CLUSTER 0.00017581999999999998 1 FES IRON/SULFUR CLUSTER 0.00035163999999999996 1 SF4 FE3-S4 CLUSTER 0.000295795 1 F3S 1,2-Distearoyl-sn-glycerophosphoethanolamine 0.000748065 3 3PE HEME C 0.0006205189999999999 1 HEC 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE 0.0007901449999999999 1 PC1 Ubiquinone-8 0.000727109 1 UQ8 singleParticle particle 7.5 ETHANE FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.6 2.6 GATAN K2 QUANTUM (4k x 4k) 25.66 1 PHASE FLIPPING AND AMPLITUDE CORRECTION 3.0 FSC 0.143 CUT-OFF 138746 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD emd_15866.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 600.0 600.0 600.0 90.0 90.0 90.0 X Y Z -2.2404299 6.277895 -0.0035404132 0.10862157 1.25 1.25 1.25 0.8 AUTHOR Sharpened mask refined map emd_15866_msk_1.map emd_15866_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 600.0 600.0 600.0 90.0 90.0 90.0 X Y Z -0.9201026 4.4622183 -0.0035404132 0.0600295 1.25 1.25 1.25 AUTHOR Unsharpened mask refined map emd_15866_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 600.0 600.0 600.0 90.0 90.0 90.0 X Y Z -2.4895077 4.552314 -0.00024085044 0.26431337 1.25 1.25 1.25 AUTHOR Half-map B emd_15866_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 600.0 600.0 600.0 90.0 90.0 90.0 X Y Z -2.1142828 4.853988 -0.00026700352 0.26572362 1.25 1.25 1.25 AUTHOR Half-map A