2026-09-02 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY STRUCTURE_SUMMARY database_2 em_3d_fitting_list em_admin entity pdbx_initial_refinement_model _chem_comp.name _chem_comp.pdbx_synonyms _database_2.pdbx_DOI _database_2.pdbx_database_accession _em_3d_fitting_list.accession_code _em_3d_fitting_list.initial_refinement_model_id _em_3d_fitting_list.source_name _em_3d_fitting_list.type _em_admin.last_update _entity.pdbx_description EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update OTHER atom_sites cell _atom_sites.fract_transf_matrix[1][1] _atom_sites.fract_transf_matrix[2][2] _atom_sites.fract_transf_matrix[3][3] _cell.Z_PDB DERIVED_CALCULATIONS struct_conn struct_conn_type _struct_conn.conn_type_id _struct_conn.id _struct_conn.pdbx_dist_value _struct_conn.pdbx_leaving_atom_flag _struct_conn.ptnr1_auth_asym_id _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_asym_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr2_auth_asym_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn_type.id STRUCTURE_SUMMARY chem_comp chem_comp_atom chem_comp_bond database_2 em_3d_fitting_list em_admin entity pdbx_entity_nonpoly pdbx_entry_details pdbx_initial_refinement_model pdbx_modification_feature _chem_comp.name _chem_comp.pdbx_synonyms _database_2.pdbx_DOI _database_2.pdbx_database_accession _em_3d_fitting_list.accession_code _em_3d_fitting_list.initial_refinement_model_id _em_3d_fitting_list.source_name _em_3d_fitting_list.type _em_admin.last_update _entity.pdbx_description _pdbx_entity_nonpoly.name REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY em_admin pdbx_modification_feature pdbx_nonpoly_atom_coordination pdbx_nonpoly_atom_coordination_sphere pdbx_nonpoly_atom_coordination_sphere_order _em_admin.last_update PDBe PDBe 2016-10-28 2016-11-23 2016-11-23 2026-09-02 Medical Research Council (United Kingdom) MC_U105674180 United Kingdom Fiedorczuk K Letts JA Sazanov LA NADH:ubiquinone, oxidoreductase, complex I, mammalian, mitochondrial Fiedorczuk K Letts JA Degliesposti G Kaszuba K Skehel M Sazanov LA Nature UK 538 406 410 2016 27595392 doi:10.1038/nature19794 1476-4687 0006 NATUAS EMD-4084 other EM volume

Map of the whole mammalian complex I used to create the Combined Map

EMD-4090 other EM volume

Map of the peripheral arm of mammalian complex I used to create the Combined Map

EMD-4091 other EM volume

Map of the membrane domain of mammalian complex I used to create the Combined Map

5lnk unknown EMDB EMD-4093 associated EM volume

Entire ovine respiratory complex I

EMDB EMD-4084 other EM volume

Map of the whole mammalian complex I used to create the Combined Map

EMDB EMD-4090 other EM volume

Map of the peripheral arm of mammalian complex I used to create the Combined Map

EMDB EMD-4091 other EM volume

Map of the membrane domain of mammalian complex I used to create the Combined Map

Mitochondrial complex I Mitochondrial complex I 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Ovis aries 0.97 Mitochondrial complex I, 51 kDa subunit Ovis aries 0.048678281000000004 1 LEVO FSGDTTAPKKTSFGSLKDEDRIFTNLYGRHDWRLKGAQSRGDWYKTKEILLKGPDWILGEVKTSGLRGRGGAGFPTGLKW SFMNKPSDGRPKYLVVNADEGEPGTCKDREIIRHDPHKLVEGCLVGGRAMGARAAYIYIRGEFYNEASNLQVAIREAYEA GLIGKNACGSGYDFDVFVVRGAGAYICGEETALIESIEGKQGKPRLKPPFPADVGVFGCPTTVANVETVAVSPTICRRGG AWFASFGRERNSGTKLFNISGHVNNPCTVEEEMSVPLKELIEKHAGGVTGGWDNLLAVIPGGSSTPLIPKSVCETVLMDF DALIQAQTGLGTAAVIVMDRSTDIVKAIARLIEFYKHESCGQCTPCREGVDWMNKVMARFVRGDARPAEIDSLWEISKQI EGHTICALGDGAAWPVQGLIRHFRPELEERMQRFAQQHQARQAAS W5PUX0 Mitochondrial complex I, 24 kDa subunit Ovis aries 0.023840428 1 LEVO GAGGALFVHRDTPKNNPETPFDFTPENYKRIEAIVKNYPEGHKAAAVLPVLDLAQRQNGWLPISAMNKVAEILQVPPMRV YEVATFYTMYNRKPVGKYHIQVCTTTPCMLRNSDSILEAIQKKLGIKVGETTPDKLFTLIEVECLGACVNAPMVQINDNY YEDLTPKDIEEIIDELKAGKIPKPGPRSGRFSCEPAGGLTSLTEPPKGPGFGVQAGL W5NRY1 Mitochondrial complex I, 75 kDa subunit Ovis aries 0.077031156 1 LEVO TATAASNLIEVFVDGQSVMVEPGTTVLQACEKVGMQIPRFCYHERLSVAGNCRMCLVEIEKAPKVVAACAMPVMKGWNIL TNSEKTKKAREGVMEFLLANHPLDCPICDQGGECDLQDQSMMFGSDRSRFLEGKRAVEDKNIGPLVKTIMTRCIQCTRCI RFASEIAGVDDLGTTGRGNDMQVGTYIEKMFMSELSGNIIDICPVGALTSKPYAFTARPWETRKTESIDVMDAVGSNIVV STRTGEVMRILPRMHEDINEEWISDKTRFAYDGLKRQRLTEPMVRNEKGLLTHTTWEDALSRVAGMLQSCQGNDVAAIAG GLVDAEALIALKDLLNRVDSDTLCTEEVFPTAGAGTDLRSNYLLNTTIAGVEEADVVLLVGTNPRFEAPLFNARIRKSWL HNDLKVALIGSPVDLTYRYDHLGDSPKILQDIASGSHPFSQVLQEAKKPMVVLGSSALQRNDGAAILAAVSNIAQKIRTS SGVTGDWKVMNILHRIASQVAALDLGYKPGVEAIRKNPPKMLFLLGADGGCVTRQDLPKDCFIVYQGHHGDVGAPIADVI LPGAAYTEKSATYVNTEGRAQQTKVAVMPPGLAREDWKIIRALSEIAGMTLPYDTLDQVRNRLEEVSPNLVRYDDVEGAN YFQQASELSKLVNQQLLADPLVPPQLTIKDFYMTDSISRASQTMAKCVKAVTEGAHAVEEPSIC W5QB34 Mitochondrial complex I, 49 kDa subunit Ovis aries 0.047120077999999996 1 LEVO MYPTKETAHWKPPPWNDVDPPKDTLVSNLTLNFGPQHPAAHGVLRLVMELSGEMVRKCDPHIGLLHRGTEKLIEYKTYLQ ALPYFDRLDYVSMMCNEQAYSLAVEKLLNIQPPPRAQWIRVLFGEITRLLNHIMAVTTHALDIGAMTPFFWMFEEREKMF EFYERVSGARMHAAYVRPGGVHQDLPLGLMDDIYEFSKNFSLRIDELEEMLTNNRIWRNRTVDIGVVTAEDALNYGFSGV MLRGSGIQWDLRKTQPYDVYDQVEFDVPIGSRGDCYDRYLCRVEEMRQSIRIISQCLNKMPPGEIKVDDAKVSPPKRAEM KTSMESLIHHFKLYTEGYQVPPGATYTAIEAPKGEFGVYLVSDGSSRPYRCKIKAPGFAHLAGLDKMSKGHMLADVVAII GTQDIVFGEVDR W5PJ73 Mitochondrial complex I, 30 kDa subunit Ovis aries 0.026441793 1 LEVO ESASADTRPTVRPRNDVAHKQLSAFGEYVAEILPKYVQQVQVSCFSELEICIHPDGVIPVLTFLRDHSNAQFKSLADLTA VDIPTRQNRFEIVYNLLSLRFNSRIRVKTYTDELTPVESSVSVYKAANWYEREIWDMFGVFFANHPDLRRILTDYGFEGH PFRKDFPLSGYVELRYDDEVKRVVAEPVELAQEFRKFDLNSPWEAFPAYRQPPESLKLEAGDKKPEAK W5PB27 Mitochondrial complex I, PSST subunit Ovis aries 0.020104531

NCBIProt XP_012033846.2

1 LEVO PSSTQPAVSQARAVVPKPAALPSSRGEYVVAKLDDLINWARRSSLWPMTFGLACCAVEMMHMAAPRYDMDRFGVVFRASP RQSDVMIVAGTLTNKMAPALRKVYDQMPEPRYVVSMGSCANGGGYYHYSYSVVRGCDRIVPVDIYVPGCPPTAEALLYGI LQLQKKIKREKRLRIWYRR Mitochondrial complex I, TYKY subunit Ovis aries 0.020219947

NCBIprot XP_011972879.1

1 LEVO TYKYVNLREPSMDMKSVTDRAAQTLLWTELIRGLGMTLSYLFREPATINYPFEKGPLSPRFRGEHALRRYPSGEERCIAC KLCEAVCPAQAITIEAEPRADGSRRTTRYDIDMTKCIYCGFCQEACPVDAIVEGPNFEFSTETHEELLYNKEKLLNNGDK WEAEIAANIQADYLYR Mitochondrial complex I, ND1 subunit Ovis aries 0.035884902 1 LEVO MFMINVLTLIIPILLAVAFLTLVERKVLGYMQFRKGPNVVGPYGLLQPIADAIKLFIKEPLRPATSSISMFILAPILALT LALTMWIPLPMPYPLINMNLGVLFMLAMSSLAVYSILWSGWASNSKYALIGALRAVAQTISYEVTLAIILLSVLLMNGSF TLSTLIITQEQVWLIFPAWPLAMMWFISTLAETNRAPFDLTEGESELVSGFNVEYAAGPFALFFMAEYANIIMMNIFTTT LFLGAFHNPYMPELYTINFTIKSLLLSITFLWIRASYPRFRYDQLMHLLWKNFLPLTLALCMWHVSLPILLSSIPPQT O78747 Mitochondrial complex I, ND2 subunit Ovis aries 0.039149804999999996 1 LEVO MNPIILIIILMTVMLGTIIVMISTHWLLIWIGFEMNMLAIIPIMMKKHNPRATEASTKYFLTQSTASMLLMMAIIINLMF SGQWTVMKLFNPMASMLMTMALAMKLGMAPFHFWVPEVTQGIPLSSGLILLTWQKLAPMSVLYQILPSINLDLILTLSIL SITIGGWGGLNQTQLRKIMAYSSIAHMGWMTAVLLYNPTMTLLNLIIYIIMTSTMFTLFMANSTTTTLSLSHTWNKAPIM TILVLITLLSMGGLPPLSGFMPKWMIIQEMTKNDSIILPTLMAITALLNLYFYMRLTYSTALTMFPSTNNMKMKWQFPTT KRMTLLPTMTVLSTMLLPLTPILSILE O78748 Mitochondrial complex I, ND3 subunit Ovis aries 0.01310652 1 LEVO MNLMITLLTNFTLATLLVTIAFWLPQLNVYSEKTSPYECGFDPMGSARLPFSMKFFLVAITFLLFDLEIALLLPLPWASQ TTNLNTMLTMALLLIFLLAVSLAYEWTQKGLEWTE O78753 Mitochondrial complex I, ND4 subunit Ovis aries 0.052058733999999995 1 LEVO MLKYIIPTMMLMPLTWLSKNSMIWINTTLHSLLISLTSLLLLNQFGDNSLNFSLTFFSDSLSTPLLILTMWLLPLMLMAS QHHLSKENLARKKLFISMLILLQLFLIMTFTATELIFFYIMFEATLVPTLIIITRWGNQTERLNAGLYFLFYTLAGSLPL LVALIYIQNTMGSLNFLILQYWVQPMPNSWSNTFMWLACMMAFMVKMPLYGLHLWLPKAHVEAPIAGSMVLAAILLKLGG YGMMRITLLLNPITDFMAYPFIMLSLWGMIMTSSICLRQTDLKSLIAYSSVSHMALVIVAILIQTPWSYMGATALMIAHG LTSSMLFCLANSNYERVHSRTMILARGLQTLLPLMAAWWLLASLTNLALPPSINLIGELFVVMSTFSWSNITIILMGLNM VITALYSLYMLITTQRGKHTHHINNILPSFTRENALMSLHMLPLLLLSLNPKIILGPLY O78755 Mitochondrial complex I, ND4L subunit Ovis aries 0.010840227999999999 1 LEVO MSLVYMNIMMAFTVSLTGLLMYRSHLMSSLLCLEGMMLSLFILATLMILNSHFTLASMMPIILLVFAACEAALGLSLLVM VSNTYGTDYVQNLNLLQC O78754 Mitochondrial complex I, ND5 subunit Ovis aries 0.067554945 1 LEVO MNLFSSLTLVTLILLTMPIAAINFNTHKFTNYPLYVKTTISCAFITSMIPTMMFIHTGQEMIISNWHWLTIQTLKLSLSF KMDFFSMMFVPVALFVTWSIMEFSMWYMHSDPNINQFFKYLLLFLITMLILVTANNLFQLFIGWEGVGIMSFLLIGWWYG RTDANTAALQAILYNRIGDIGFILAMAWFLINLNTWDLQQIFMLNPNDSNLPLMGLILAATGKSAQFGLHPWLPSAMEGP TPVSALLHSSTMVVAGIFLLIRFYPLTENNKFGQSIMLCLGAMTTLFTAMCALTQNDIKKIIAFSTSSQLGLMMVTIGIN QPHLAFLHICTHAFFKAMLFMCSGSIIHSLNDEQDIRKMGGLFKAMPFTTTALIIGSLALTGMPFLTGFYSKDLIIESAN TSYTNAWALLMTLVATSFTAIYSTRIIFFALLGQPRFPTLININENNPFLINSIKRLLIGSLFAGFIISNNIPPMTIPQM TMPHYLKMTALTVTILGFILALEISNTTHYLKFNYPSNTFKFSNLLGYYPTIMHRLTPYMNLTMSQKSASSLLDLIWLET ILPKTISLAQMKMSTTITSQKGLIKLYFLSFLITILIST O78756 Mitochondrial complex I, ND6 subunit Ovis aries 0.019126618999999997 1 LEVO MMTYIVFILSIIFVMGFVGFSSKPSPIYGGLGLIVSGGVGCGIVLNFGGSFLGLMVFLIYLGGMMVVFGYTTAMATEQYP EVWVSNKVVLGTFITGLLMEFLMVYYVLKDKEVEIVFKFNGMGDWVIYDTGDSGFFSEEAMGIAALYSYGTWLVIVTGWS LLIGVVVIMEITRGN O78757 Mitochondrial complex I, 10 kDa subunit Ovis aries 0.008423314

NCBIprot XP_011991231.1

1 LEVO SAESGKNEKGLPPNPKKQSPPKKPASAAPTEPFDNTTYKNLQHHDYSTYTFLDLNLDLSKFRMPQPSSGRESPRH Mitochondrial complex I, 13 kDa subunit Ovis aries 0.010651796

NCBIprot XP_011980592.1

1 LEVO GVRTSPTGEKVTHTGQVYDDEDYRRVRFVGRQKEVNENFAIDLIAEQPVSQVGSRVISCDGGGGALGHPRVYINLDKETK TGTCGYCGLQFRQQHH Mitochondrial complex I, 18 kDa subunit Ovis aries 0.015375299999999998

NCBIprot XP_004017046.1

1 LEVO AQDQTRDTQLITVDEKLDITTLTGVPEEHIKTRKARIFVPARNNMQSGVNNTKKWKMEFDTRERWENPLMGWASTADPLS NLVLTFSTKEDAIAFAEKNGWSYDVEERKVPKPKSKSYGANFSWNKRTRVSTK Mitochondrial complex I, 39 kDa subunit Ovis aries 0.03866048799999999 1 LEVO LHHAVIPHGKGGRSSVSGIVATVFGATGFLGRYLVNHLGRMGSQVIVPYRCEPYDTMHLRPMGDLGQIIFMDWNGRDKDS IRRAVEHSNVVINLVGREWETKNFDFEDVFVKIPQAIAQVSKEAGVEKFIHISHLNADIKSSSKYLRNKAVGEKEVRETF PEATIIKPADIFGREDRFLNYFANIRWFGGVPLISLGKKTVKQPVYIVDVTKGIINAIKDPDARGKTFAFVGPNRYLLFD LVQYVFAVAHRPFLPYPMPHFAYRWIGRLFEISPFEPWTTRDKVERIHTTDRTLPHLPGLEDLGVQATPLELKAIEVLRR HRTYRWLSSEIEDVQPAK W5PI58 Mitochondrial complex I, B8 subunit Ovis aries 0.010966627 1 LEVO AAAAAIRGVRGKLGLREIRIHLCQRSPGSQGVRDFIEKRYVELKKANPDLPILIRECSDVQPKLWARYAFGQEKNVSLNN FSADQVTRALENVLSSKA W5QAH8 Mitochondrial complex I, B13 subunit Ovis aries 0.013156310999999999

NCBIprot XP_004005022.1

1 LEVO AGLLKKTTGLVGLAVCETPHERLKILYTKILDVLGHIPKNAAYRKYTEQITNEKLSIVKAEPDVKKLEEQLQGGQIEEVI LQAENELSLARKMIQWKPWEPLVEEPPASQWKWPI W5PNX7 Mitochondrial complex I, B14 subunit Ovis aries 0.014923245 1 LEVO AASGLRQAAVAASTSVKPIFSRDMNEAKRRVRELYRAWYREVPNTVHLFQLDISVKQGRDKVREMFKKNAHVTDPRVVDL LVIKGKMELEETINVWKQRTHVMRFFHETEAPRPKDFLSKFYVGHDP W5QC06 Mitochondrial complex I, B14.5a subunit Ovis aries 0.012399200999999999

NCBIprot XP_004008614.1

1 LEVO ASATRLIQGLRNWASGRDLQAKLQLRYQEISKRTQPPPKLPVGPSHRLSNNYYCARDGRREAMPPSIVMSSQKVLVAGKP AESSAVAASEKKAVSPAPPIKRWELSQDEPYL W5P0I2 Mitochondrial complex I, B17.2 subunit Ovis aries 0.017115508 1 LEVO MELLQVLKRGLQQVSGHGGLRGYLRVLFRANDVRVGTLVGEDKYGNKYYEDNKQFFGRHRWVIYTTEMNGKNTFWDVDGS MVPPEWHRWLHCMTDDPPTVKPPTARKFIWTNHKFNLSGTPQQYVPYSTTRKKIQEWVPPSTPYK B9VGZ9 Acyl carrier protein Ovis aries 0.010119541 2 LEVO SDAPPLTLEGIKDRVLYVLKLYDKIDPEKLSVNSHFMKDLGLDSLDQVEIIMAMEDEFGFEIPDIDAEKLMCPQEIVDYI ADKKDVYE W5NQT7 Mitochondrial complex I, 42 kDa subunit Ovis aries 0.036803762000000004 1 LEVO LQYGPLAYILGEKTTKKMTENSKLITVDGNICSGKSKLAKEVAEKLGLKHFPEAGIHYADSTTGDGKPLPVRFSGNCSLE KFYDDPKSNDGNSYRLQAWLYASRLLQYADALEHLLSTGQGVVLERSIYSDFVFLEAMYRQGFIRKQCVDHYNQVKKVTV CEYLPPHVVIYVDVPVSEVQSRIQKKGNPHEMKITSAYLQDIENVYKGTFLPEMSEKCEVLQYSAWEAEDAEKVVEDIQY LKYDKGPWLDQDDRKLHNLRMLVQDKLEVLNYTSIPVFLPEVTIGAHQSDRVFQEFTELPGRKYRAGYNEDVGDKWIWLK W5QBF5 Mitochondrial complex I, 15 kDa subunit Ovis aries 0.012474397

NCBIprot XP_004001873.1

1 LEVO PFFDVQKKLGVDLDHWMTIQSAEQPHRIPARCHAFEKEWIECAHGIGSIRAEKECKIEFEDFRECLLRQKTMKRLNAIKR QRDKLIKEGKYTPPPHHSGQEDLRP Mitochondrial complex I, B9 subunit Ovis aries 0.009194655 1 LEVO APRVAAFLKNVWAKEPVLVASFAIAGLAVILPTLSPYTKYSLMINRATPYNYPVPLRDDGNMPDVPSHPQDPQGPSLEWL KRL W5NYM7 Mitochondrial complex I, B12 subunit Ovis aries 0.011015482 1 LEVO AHGHGHEHGPSKMELPDYKQWKIEGTPLETVQEKLAARGLRDPWGRNEAWRYMGGFANNVSFVGALLKGFKWGFAAFVVA VGAEYYLESQKKDKKHH W5Q5T4 Mitochondrial complex I, B14.5b subunit Ovis aries 0.01423142

NCBIprot XP_004019479.1

1 LEVO MMTGRQARAPLQFLPDEARSLPPPKLTDPRLAYIGFLGYCSGLIDNAIRRRPVLSAGLHRQFLYITSFVFVGYYLLKRQD YMYAVRDHDMFSYIKSHPEDFPEKDKKTYREVFEEFHPVR Mitochondrial complex I, B15 subunit Ovis aries 0.014975998999999999

NCBIprot XP_004003003.1

1 LEVO SFPKYEPSRLASLPTTLDPAEYDISSETRKAQAERLAIRSRLKREYQLQYNDPSRRGVVEDPALIRWTCARSANVYPNFR PNTKTSLLGALFGIGPLIFWYYVFKTDRDRKEKLIQEGKLDRTFNISY Mitochondrial complex I, B16.6 subunit Ovis aries 0.016635263999999997

NCBIprot XP_004008450.1

1 LEVO AASKVKQDMPPVGGYGPIDYKRNLPRRGLSGYSMFAVGIGALLFGYWSMMRWNRERRRLQIEDFEARIALMPLLQAEKDR RVLQMLRENLEEEATIMKDVPGWKVGESVFHTTRWVTPMMGELYGLRTGEEILSSTYGFIWYT Mitochondrial complex I, B17 subunit Ovis aries 0.015433928999999999 1 LEVO SGYTPDEKLRLQQLRELRRRWLKDQELSPREPVLPPRRVSPVERFWNKFLQDGALWKNVIYKTYRHSIFAFTHVLIPVWI IHYYLKYHVTTKPYTIVEKKPRIFPGDTILETGEVIPPMKEFPDQHH W5PZE3 Mitochondrial complex I, B18 subunit Ovis aries 0.01628261 1 LEVO GAHLARRYLGDASVEPEPLRMPTFPPDYGFPERKEREMVATQQEMNDAQLVLQQRDYCAHYLIRFLKCKRDSFPNFLACK HEQHDWDYCEHLDYVKRMKEFERERRLLQRKKRREQREADMAKGLGPGEVAPEVAL W5P5V3 Mitochondrial complex I, B22 subunit Ovis aries 0.021648715 1 LEVO AFLPSAAYLTHQQKVLQLYKRALRHLESRCVHRDKYRYFACLLRARFDEHKNEKDMVKATQLLREAEKEFWHGQHPQPYI FPESPGGTSYERYECYKVPEWCLDDWHPSEKAMYPDYFAKREQWKKLRRESWEREVKQLQEETPVGGPRTEALPPARKQG DLPPLWWHIVTRPRERPM W5PGA3 Mitochondrial complex I, AGGG subunit Ovis aries 0.008500289000000001 1 LEVO AGGGAHIEPRYRQFPQLTRSQVIQAEFFSATMWFWILWRFWHDSDAVLGHFPYPDPSQWTDEELGIPPDDED W5PVD7 NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial Ovis aries 0.01881807 1 LEVO ASHITKDMLPGPYPKTPEERAAAAKKYNMRVEDYEPYPDDGMGYGDYPKLPDRSQQERDPWYDWDHPDLRLNWGEPMHWD LDMYIRNRVDTSPTPVNWNLMCKHLFGFVAFMLFMFWVGETYPTYQPVGPKQYPYNNLYLERGGDPNKEPEPVVHYEI W5Q1B0 Mitochondrial complex I, ESSS subunit Ovis aries 0.014455032999999999 1 LEVO ESSSSRAVIAPSTLAGKRPSEPTLRWQEDPEPEDENLYEKNPDSHGYDKDPAVDVWNMRVVFFFGFSIVLVLGSTFVAYL PDYRMQEWARREAERLVKYREAHGLPLMESNCFDPSKIQLPEDED W5PWF1 Mitochondrial complex I, KFYI subunit Ovis aries 0.005808645

NCBIprot XP_004017292.1

1 LEVO KFYIQEPPHGSPNWLKVGLTLGTSAFLWIYLIKQHNEDVLEYKRRNGLE Mitochondrial complex I, MNLL subunit Ovis aries 0.006930082999999999

NCBIprot XP_004018002.1

1 LEVO MNLLQVVRDHWIHVLVPVGFVFGYYLDRKNDEKLAAFRNKSLLYKRELKPNEEVTWK Mitochondrial complex I, MWFE subunit Ovis aries 0.008211519

NCBIprot NP_001305903.1

1 LEVO MWFEVLPGIAVMGVCLFIPGMATARIHRFSNGGREKRVAHYSYQWYLMERDRRVSGVNRYYVSKGLENID Mitochondrial complex I, PDSW subunit Ovis aries 0.020880752

NCBIprot XP_011999786.1

1 LEVO PDSWDKDVYPEPPRRTPAPSPQTSLPNPITYLTKAFDLLVDRPVTLVREFIERQHAKNKYYYYHREFRRVPDITECHEKD VLCMFEAEMQWKRDYKVDQEIVNIIQERLKACQQREGESHRQNCAKELQQFTQVVKAYQDRYHDLGAHYSARKCLAKQKQ RMLAERKATKEAAAA Mitochondrial complex I, PGIV subunit Ovis aries 0.020008013999999998 1 LEVO PGIVELPSLEDLKVQEVKVSSSVLKAAAHHYGAQCDKPNKEFMLCRWEEKDPRRCLEEGKLVNQCALEFFRQIKRHCAEP FTEYWTCIDYSGLQLFRRCRKEQAQFDKCVLDKLGWVRPDLGELSKVTKVKTDRPLPENPYHSRARPEPNPEVEGDLKPA RHGSRLFFWTM W5PYA5 Mitochondrial complex I, SGDH subunit Ovis aries 0.016714369 1 LEVO SGDHGKRLFIIKPSGFYDKRFLKLLRFYILLTGIPVVIGITLINVFIGEAELAEIPEGYVPEHWEYFKHPISRWIARTFF DAPEKNYERTMAILQIESEKAELRLKELEVRRLMRAKGDGPWFQYPTIDKALIDHSPKATPDN W5QHN8 Mitochondrial complex I, B14.7 subunit Ovis aries 0.010145496999999998

UniProt W5PAR2

1 LEVO (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) IRON/SULFUR CLUSTER 0.00035163999999999996 6 SF4 FLAVIN MONONUCLEOTIDE 0.00045634399999999997 1 FMN FE2/S2 (INORGANIC) CLUSTER 0.00017581999999999998 2 FES 1,2-Distearoyl-sn-glycerophosphoethanolamine 0.000748065 4 3PE 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE 0.0007901449999999999 4 PC1 CARDIOLIPIN 0.0014640429999999997 4 CDL ZINC ION 6.5409e-05 1 ZN NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE 0.000745421 1 NDP S-[2-({N-[(2S)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alanyl}amino)ethyl] tetradecanethioate 0.000568704 1 ZMP 4'-PHOSPHOPANTETHEINE 0.000358348 1 PNS singleParticle particle 5 7.4 100.0 NaCl Sodium Chloride 20.0 HEPES 2.0 EDTA 1.5 Glycerol 0.2 Brij-35 Quantifoil R0.6/1 COPPER 300 CARBON HOLEY GLOW DISCHARGE 120 AIR ETHANE 90 277 FEI VITROBOT MARK IV

34s blotting.

FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 0.5 3.5 59000.0 100720.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN FEI FALCON II (4k x 4k) INTEGRATING 4096 4096 1-7 2 2600 1.0 26.0 1 241000 Gctf PHASE FLIPPING AND AMPLITUDE CORRECTION EMD-2676 1 3.9 FSC 0.143 CUT-OFF RELION 1.4 82000 NOT APPLICABLE ANGULAR RECONSTITUTION RELION 1.4 RELION 1.4 4HEA PDB experimental model

For the fourteen core subunits we used as a starting point our previous structure from T. thermophilus (PDB 4HEA) with sequence adjusted to ovine and side-chains rebuilt in SQWRL4. These are chains 1, 2, 3, 4, 5, 6, 9, H, A, J, K, N, M and L (with the same chain IDs as in 4HEA). For the remaining supernumerary subunits it was mostly de novo building with some help from homology modeling, which in most cases was not very useful due to low sequence homology. In few cases models produced by Phyre2 server were useful and were used as a starting point, due to the presence of templates with high coverage and confidence: 42kDa (chain k) - PDB ID 1P6X (xray) 39kDa (chain d) - PDB ID 3WJ7 (xray) SDAPs (chains j and X) - PDB ID 2DNW (NMR) B8 (chain e) - PDB ID 1S3A (NMR)

AB INITIO MODEL REAL