2026-08-12 REL RCSB INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY STRUCTURE_SUMMARY em_admin entity _em_admin.last_update _entity.formula_weight STRUCTURE_SUMMARY 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 RCSB RCSB 2022-02-15 2023-02-22 2023-02-22 2026-08-12 National Institutes of Health/National Cancer Institute (NIH/NCI) United States Structure of mitochondrial bc1 in complex with ck-2-68 Xia D Esser L Mitochondrial cytochrome bc1, antimalarial inhibitor, electron transfer, OXIDOREDUCTASE Esser L Zhou F Zeher A Wu W Huang R Yu CA Lane KD Wellems TE Xia D Structure of complex III with bound antimalarial agent CK-2-68 provides insights into selective inhibition of Plasmodium cytochrome bc 1 complexes. J.Biol.Chem. US 299 104860 104860 2023 37236355 doi:10.1016/j.jbc.2023.104860 1083-351X 0071 JBCHA3 7tz6 FULLOVERLAP EMDB EMD-26203 associated EM volume
Structure of mitochondrial bc1 in complex with ck-2-68
 Bovine heart mitochondrial cytochrome bc1 complex Bovine heart mitochondrial cytochrome bc1 complex 0 1 2 3 4 5 6 7 8 9 10 11 Bos taurus Cytochrome b-c1 complex subunit 1, mitochondrial Bos taurus 0.049266253999999995 2 LEVO TATYAQALQSVPETQVSQLDNGLRVASEQSSQPTCTVGVWIDAGSRYESEKNNGAGYFVEHLAFKGTKNRPGNALEKEVE SMGAHLNAYSTREHTAYYIKALSKDLPKAVELLADIVQNCSLEDSQIEKERDVILQELQENDTSMRDVVFNYLHATAFQG TPLAQSVEGPSENVRKLSRADLTEYLSRHYKAPRMVLAAAGGLEHRQLLDLAQKHFSGLSGTYDEDAVPTLSPCRFTGSQ ICHREDGLPLAHVAIAVEGPGWAHPDNVALQVANAIIGHYDCTYGGGAHLSSPLASIAATNKLCQSFQTFNICYADTGLL GAHFVCDHMSIDDMMFVLQGQWMRLCTSATESEVLRGKNLLRNALVSHLDGTTPVCEDIGRSLLTYGRRIPLAEWESRIA EVDARVVREVCSKYFYDQCPAVAGFGPIEQLPDYNRIRSGMFWLRF P31800 Cytochrome b-c1 complex subunit 2, mitochondrial Bos taurus 0.046575468999999994 2 LEVO SLKVAPKVKATEAPAGVPPHPQDLEFTRLPNGLVIASLENYAPASRIGLFIKAGSRYENSNNLGTSHLLRLASSLTTKGA SSFKITRGIEAVGGKLSVTSTRENMAYTVECLRDDVDILMEFLLNVTTAPEFRRWEVAALQPQLRIDKAVALQNPQAHVI ENLHAAAYRNALANSLYCPDYRIGKVTPVELHDYVQNHFTSARMALIGLGVSHPVLKQVAEQFLNIRGGLGLSGAKAKYH GGEIREQNGDSLVHAALVAESAAIGSAEANAFSVLQHVLGAGPHVKRGSNATSSLYQAVAKGVHQPFDVSAFNASYSDSG LFGFYTISQAASAGDVIKAAYNQVKTIAQGNLSNPDVQAAKNKLKAGYLMSVESSEGFLDEVGSQALAAGSYTPPSTVLQ QIDAVADADVINAAKKFVSGRKSMAASGNLGHTPFIDEL P23004 Cytochrome b Bos taurus 0.04262033999999999 2 LEVO MTNIRKSHPLMKIVNNAFIDLPAPSNISSWWNFGSLLGICLILQILTGLFLAMHYTSDTTTAFSSVTHICRDVNYGWIIR YMHANGASMFFICLYMHVGRGLYYGSYTFLETWNIGVILLLTVMATAFMGYVLPWGQMSFWGATVITNLLSAIPYIGTNL VEWIWGGFSVDKATLTRFFAFHFILPFIIMAIAMVHLLFLHETGSNNPTGISSDVDKIPFHPYYTIKDILGALLLILALM LLVLFAPDLLGDPDNYTPANPLNTPPHIKPEWYFLFAYAILRSIPNKLGGVLALAFSILILALIPLLHTSKQRSMMFRPL SQCLFWALVADLLTLTWIGGQPVEHPYITIGQLASVLYFLLILVLMPTAGTIENKLLKW P00157 Cytochrome c1, heme protein, mitochondrial Bos taurus 0.027323276999999997 2 LEVO SDLELHPPSYPWSHRGLLSSLDHTSIRRGFQVYKQVCSSCHSMDYVAYRHLVGVCYTEDEAKALAEEVEVQDGPNEDGEM FMRPGKLSDYFPKPYPNPEAARAANNGALPPDLSYIVRARHGGEDYVFSLLTGYCEPPTGVSLREGLYFNPYFPGQAIGM APPIYNEVLEFDDGTPATMSQVAKDVCTFLRWAAEPEHDHRKRMGLKMLLMMGLLLPLVYAMKRHKWSVLKSRKLAYRPP K P00125 Cytochrome b-c1 complex subunit Rieske, mitochondrial Bos taurus 0.02164058 2 LEVO SHTDIKVPDFSDYRRPEVLDSTKSSKESSEARKGFSYLVTATTTVGVAYAAKNVVSQFVSSMSASADVLAMSKIEIKLSD IPEGKNMAFKWRGKPLFVRHRTKKEIDQEAAVEVSQLRDPQHDLERVKKPEWVILIGVCTHLGCVPIANAGDFGGYYCPC HGSHYDASGRIRKGPAPLNLEVPSYEFTSDDMVIVG P13272 1.10.2.2 Cytochrome b-c1 complex subunit 7 Bos taurus 0.013370205999999999 2 LEVO AGRPAVSASSRWLEGIRKWYYNAAGFNKLGLMRDDTIHENDDVKEAIRRLPENLYNDRVFRIKRALDLSMRQQILPKEQW TKYEEDKSYLEPYLKEVIRERKEREEWAKK P00129 Cytochrome b-c1 complex subunit 8 Bos taurus 0.009448833 2 LEVO GRQFGHLTRVRHVITYSLSPFEQRAFPHYFSKGIPNVLRRTRACILRVAPPFVAFYLVYTWGTQEFEKSKRKNPAAYEND P13271 Cytochrome b-c1 complex subunit 6, mitochondrial Bos taurus 0.009189115999999999 2 LEVO GDPKEEEEEEEELVDPLTTVREQCEQLEKCVKARERLELCDERVSSRSQTEEDCTEELLDFLHARDHCVAHKLFNSLK P00126 Cytochrome b-c1 complex subunit Rieske, mitochondrial Bos taurus 0.007964259 2 LEVO MLSVAARSGPFAPVLSATSRGVAGALRPLVQAAVPATSESPVLDLKRSVLCRESLRGQAAGRPLVASVSLNVPASVRY P13272 1.10.2.2 Cytochrome b-c1 complex subunit 9 Bos taurus 0.007338425 2 LEVO VAPTLTARLYSLLFRRTSTFALTIVVGALFFERAFDQGADAIYEHINEGKLWKHIKHKYENKE P00130 Cytochrome b-c1 complex subunit 10 Bos taurus 0.006527604 2 LEVO MLTRFLGPRYRQLARNWVPTASLWGAVGAVGLVWATDWRLILDWVPYINGKFKKDD P07552 PROTOPORPHYRIN IX CONTAINING FE 0.000616487 4 HEM 7-chloranyl-3-methyl-2-[4-[[4-(trifluoromethyloxy)phenyl]methyl]phenyl]-1~{H}-quinolin-4-one 0.000443845 2 JHB HEME C 0.0006205189999999999 2 HEC FE2/S2 (INORGANIC) CLUSTER 0.00017581999999999998 2 FES singleParticle particle 0.3 7.5 50.0 TrisCl Quantifoil R1.2/1.3 COPPER 400 CARBON HOLEY GLOW DISCHARGE ETHANE 95 277 FEI VITROBOT MARK IV FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.7000000000000001 0.63 2.6 2.82 29000.0 58275.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN 80.0 80.0 GATAN K2 SUMMIT (4k x 4k) COUNTING 1 6960 50.24 1 883119 cisTEM 1.0 beta PHASE FLIPPING AND AMPLITUDE CORRECTION
ab initio from a subset
 1 C1 2.88 FSC 0.143 CUT-OFF cisTEM 1.0 beta 454182 PROJECTION MATCHING cisTEM 1.00 beta OTHER cisTEM 1.0 beta
auto-refine in cisTEM
 3 cisTEM 1.0 beta emd_26203.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 439.296 439.296 439.296 90.0 90.0 90.0 X Y Z -15.043259000000001 22.098385 -0.014876114 0.6908245 0.858 0.858 0.858 2.6 AUTHOR cistemMap Btbc1 ck-2-68 dimer