Cryo-EM structure of photosystem II C2S2M2L2 supercomplex from the green alga Chlorella ohadii

2026-01-21 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY DATABASE_REFERENCES citation citation_author em_admin _citation.country _citation.journal_abbrev _citation.journal_id_ISSN _citation.journal_volume _citation.page_first _citation.page_last _citation.pdbx_database_id_PubMed _citation.title _citation.year _citation_author.identifier_ORCID _citation_author.name _em_admin.last_update EXPERIMENTAL_SUMMARY citation citation_author em_admin _citation.country _citation.journal_abbrev _citation.journal_id_ISSN _citation.journal_volume _citation.page_first _citation.page_last _citation.pdbx_database_id_PubMed _citation.title _citation.year _citation_author.identifier_ORCID _citation_author.name _em_admin.last_update PDBe PDBe 2024-11-11 2025-11-12 2025-11-12 2026-01-21 Ministry of Education, Youth and Sports of the Czech Republic CZ.02.01.01/00/22_008/0004624 Czech Republic Czech Science Foundation 23-07744S Czech Republic Other government MZE-RO0423 German Research Foundation (DFG) 391498659 (RTG 2467); SFB 1664 (TP D1) Germany German Federal Ministry for Education and Research 03Z22HN23; 03Z22HI2; 03COV04 Germany European Regional Development Fund ZS/2016/04/78115 European Union Cryo-EM structure of photosystem II C2S2M2L2 supercomplex from the green alga Chlorella ohadii Kopecny D Kouril R Ardhad R Skalidis I Kastritis P supercomplex, photosynthesis, chlorophyll, algae, MEMBRANE PROTEIN Arshad R Skalidis I Kopecny D Brabencova S Opatikova M Ilik P Pospisil P Hamdi F Cavar Zeljkovic S Kopecna M Roudnicky P Lazar D Elias E Croce R Kastritis PL Kouril R Cryo-EM structure of photosystem II supercomplex from a green microalga with extreme phototolerance. Nat Commun UK 17 341 341 2026 41513636 doi:10.1038/s41467-025-65861-2 2041-1723 9hd7 FULLOVERLAP EMDB EMD-52056 associated EM volume

Photosystem II supercomplex C2S2M2L2 Photosystem II supercomplex C2S2M2L2 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 Chlorella ohadii Photosystem II core complex (C2) 1 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 23 24 25 26 27 29 Chlorella ohadii Chlorophyll a-b binding protein Lhcbm-I Chlorella ohadii 0.026744256

GenBank accession XHY80384

6 LEVO MQAALAQRLALVKPTRGARKQVTRAAVEFYGPDRAKWLGPFSEGSVPSYLKGEFPGDYGWDTAGLSADPETFARYREIEV IHARWAMLGALGCLTPELLQNNGAADFGEAAVWFKAGASIFNEDGLNYLGNPSLIHAQSIVAVLLTQLVIMGAAEAYRYS GEGPVETSGDSLYPGGFFDPLGLADDPDTLAELKVKEIKNGRLAMFSMFGFFVQGLVTGKSPLENLADHLAEPSVNNGFA SATKFLPLP Chlorophyll a-b binding protein, chloroplastic Chlorella ohadii 0.026604173999999998 6 LEVO MQAALSQRLAAIKPSGRATRQVTRASVEWYGPNRPQFLGPFSNPPSYLKGEFPGDYGWDTAGLSADPETFARYRELEVIH ARWAMLGALGCVTPELLQRNGVANFGEAVWFKAGAQIFQEGGLDYLGNPSLIHAQSIVAILLTQLVLMGLIEGYRVNGGP AGEGLDALYPGEAFDPLGLADDPDTFAELKVKELKNGRLAMVSMLGFGVQGLITRKGPIENLADHLAAPDATNFWVDYAP KSAGIGY A0AAD5DLH1 Chlorophyll a-b binding protein, chloroplastic Chlorella ohadii 0.027506311

UniProt accession A0AAD5DXI2

2 LEVO MALSLKVTATFGGKTKAGTKAGTKKGTQKQATTKKAAPKKSSSGASQWYGPDRPKFLGPYSTNFVPSYLTGEFPGDYGWD TSGLSADPATFARYREIEVIHARWAMLGALGCVVPELLDGTNHIAWFKAGAEIFGDDGIQYLGIPGLINAKSIVATLIVQ VVLMSYVEGYRVNGGPAGTGLDAVYPGGNFDPLGLADDPDTLAELKVKEIKNGRLAMLSMFGFFIQAIVTGEGPIKNLND HLADASANNFYALYAKNLA A0AAD5DXI2 Chloroplast photosystem II 10 kDa protein Chlorella ohadii 0.014953089 2 LEVO MQATFAGSKLQLGARVSRKSVNTTVVASSGKKIDISKQGLNSIQNETVKLNLMGKSKTMESKDWVDPQGRKGKGYGVYRF ANKYGANVDGYSPIYTPDTWSESGDSYKLGTKGLIAWAGLIVVLLGVGINLVISTSALGQ A0A5P4NAS4 Chlorophyll a-b binding protein, chloroplastic Chlorella ohadii 0.026169717 2 LEVO MQAAVAQRLALVKASRATRQVTKASAEFYGPDRVKFLGPFSGNTPSYLKGEYPGDYGWDTAGLSADPETFARYRELEVIH ARWAMLGALGCVTPELLQRNGAANFGEAVWFKAGAQIFQEGGLDYLGNPNLVHAQSIVAILLTQVVLMGLIEGYRVNGGP AGEVVDPIYPGEAFDPLGLADDPDTLAELKVKEIKNGRLAMVSMFGFFIQAIVTGKGPVQNLSDHLASPSTDNFYSLYAK TLA A0AAD5H446 Photosystem II protein D1 Chlorella ohadii 0.039040438 2 LEVO MTAILERRESTSLWARFCEWVTSTENRLYIGWFGVLMIPTLLTATSVFIIAFIAAPPVDIDGIREPVSGSLLYGNNIITG AIIPTSNAIGLHFYPIWEAASLDEWLYNGGPYQLIVCHFFLGVCSYMGREWELSFRLGMRPWIAVAYSAPVAAATAVFII YPLGQGSFSDGMPLGISGTFNFMIVFQAEHNILMHPFHMLGVAGVFGGSLFSAMHGSLVTSSLIRETTENESANEGYKFG QEEETYNIVAAHGYFGRLIFQYASFNNSRSLHFFLAAWPVVGIWFTALGISTMAFNLNGFNFNQSVVDSQGRVINTWADI INRANLGMEVMHERNAHNFPLDLAVVEAPAVNG W8SIR2 1.10.3.9 Photosystem II CP47 reaction center protein Chlorella ohadii 0.056199800999999994 2 LEVO MGLPWYRVHTVVLNDPGRLIAVHLMHTSLVSGWAGSMAFYELAVFDPSDPVLNPMWRQGMFVLPFMTRLGITQSWGGWTI SGETASNPGIWSYEGVAAAHIILSGLLFAASIWHWVYWDLELFRDPRTSNPALDLPKIFGIHLFLSGLLCFGFGAFHVTG LFGPGIWVSDPYGITGTVQAVAPSWDATGFDPYNPGGISAHHIAAGILGVLAGLFHLCVRPPQRLYNGLRMGNIETVLSS SIAAVFWAAFVVSGTMWYGSAATPIELFGPTRYQWDLGFFQQEIERRVQTSLAEGKSASQAWAEIPEKLAFYDYIGNNPA KGGLFRAGAMNSGDGIAVGWLGHAVFKDKQGNELFVRRMPTFFETFPVVLLDKDGVVRADVPFRRSESKYSIEQVGVSVT FYGGELDGVTFSDPATVKKYARRAQLGEIFEFDRATLQSDGVFRTSPRGWFTFAHLCFALLFFFGHIWHGARTIFRDVFA GIDADLDEQVEFGAFLKLGDTSTRRQSV W8TIK4 Photosystem II CP43 reaction center protein Chlorella ohadii 0.052106495999999995

GenBank accession AII02053

2 LEVO MKNLYSLRRFYHVETLFNGSLVVGGRDQESTGFAWWAGNARLINLSGKLLGAHVAHAGLIVFWAGAMNLFEVAHFVPEKP MYEQGLILLPHLATLGYGVGPGGEVIDTYPYFVSGVLHLISSAVLGFGGVYHSLVGPETLEESFPFFGYVWKDKNKMTTI LGIHLIVLGLGAWLLVWKAMYFGGIYDTWAPGGGDVRIITNPTVSPGVIFGYLFRSPFGGDGWIVSVDNMEDVIGGHIWI GTLCIFGGIWHILTKPWAWARRAFVWSGEAYLSYSLGAISIMGFTACCMAWFNTTAYPSEFYGPTGPEASQSQTFTFLVR DQRLGANVASAQGPTGLGKYLMRSPTGEIIFGGETMRFWDFRGPWLEPLRGPNGLDLNKLKNDIQPWQERRAAEYMTHAP LGSLNSVGGVATEINAVNYVSPRSWLATSHFCLGFFFFVGHLWHAGRARAAAAGFEKGIDRDNEPVLSMRPLD A0A076EAP1 Photosystem II D2 protein Chlorella ohadii 0.039534211 2 LEVO MTIAIGKTQEKRGWFDVVDDWLRRDRFVFVGWSGLLLFPTAYLALGGWFTGTTFVTSWYTHGLASSYLEGCNFLTAAVST PANSMGHSLLFLWGPEAQGDFTRWCQLGGLWTFVALHGSFSLIGFMLRQFEIARSVKIRPYNAIAFSAPISVFVSVFLIY PLGQSGWFFAPSFGVAAIFRFILFFQGFHNWTLNPFHMMGVAGVLGAALLCAIHGATVENTLFEDGDGANTFRAFNPTQA EETYSMVTANRFWSQIFGVAFSNKRWLHFFMLFVPVTGLWMSAIGVVGLALNLRAYDFVSQEIRAAEDPEFETFYTKNIL LNEGIRAWMAAQDQPHEKLVFPEEVLPRGNAL W8SYD4 1.10.3.9 Cytochrome b559 subunit alpha Chlorella ohadii 0.009449626 2 LEVO MSGATGERPFSDILTSIRYWVIHSITIPSLFIAGWLFVSTGLAYDVFGSPRPNEYFTEDRQETPLITDRFNALEQVKKLS EVN W8SU91 Cytochrome b559 subunit beta Chlorella ohadii 0.00472264 2 LEVO MTARKSYTYPIFTVRWLAVHALAVPTVFFLGAITAMQFIQR W8SIQ3 Photosystem II reaction center protein H Chlorella ohadii 0.008575998999999999 2 LEVO MATGTTSKVKSEDTGISTPLGTLLKPLNSEYGKVAPGWGTTVLMGIFMALFAVFLVIILEIYNSSVLLDDVTMSWESLAK W8SIT0 Photosystem II reaction center protein I Chlorella ohadii 0.004386098

UniProt acession A0A5P4ND48

2 LEVO MLTLKIFVYTVVTFFVSLFIFGFLSNDPGRNPGQRELD A0A5P4ND48 Photosystem II reaction center protein J Chlorella ohadii 0.004246948

UniProt accession W8TIH6

2 LEVO MSNTGTTGRIPLWLVGTVAGVAVIALVGIFFYGSYVGLGSSL W8TIH6 Photosystem II reaction center protein K Chlorella ohadii 0.0046817049999999995

UniProt A0A076EAP2

2 LEVO MLLLAKLPEAYAPFDPIVDVLPVIPVLFLLLALVWQASVSFR P56348 Photosystem II reaction center protein L Chlorella ohadii 0.004391162

Uniprot W8SKK5

2 LEVO MAKPNPNKQSVELNRTSLYWGLLLIFVLAVLFSSYIFN P56339 Photosystem II reaction center protein M Chlorella ohadii 0.0037514949999999997

UniProt A0A5P4NAV9

2 LEVO MEVNILGVIATALFIIIPTSFLLILYVKTASQEQ A0A5P4NAV9 Chloroplast oxygen-evolving enhancer protein 1b (PsbO) Chlorella ohadii 0.03155959

GenBank accession XHY80383

2 LEVO MLAATAPFKPAAAAAAPSAARPRGRCAAAVRCAAARPEGPQGAWVERCARGAAAFAGSLLMAQAALAGNFTFDELQAKSY LEVKGSTLANQCPILGADAQQGLGDVKPGTFQLDKFCMEPSSFKVKMPGSKEFEPSTLLTRNTYSLDQMTGSVTVKGDGS VALKQQDGIDFAPVTVKIRGGEMVPFMFTVKNLNIEGKADGLTGDFTVPSYRGATFMDPQGRGAASGWEYVKGLAAAGAQ EELAAENVKSAAATVGEAAFAIASTDAATGEIAGVFVTRQLADDDLGSKDPATIEIEGIWYGQLS PWWP domain-containing protein Chlorella ohadii 0.09477907

UniProt A0AAD5H4X0

2 LEVO METLQAELKPKSAPQTGEAAGLRLVFKGGGLKHLLGHGRKQASGPWRQGGSEQQDGDWPSPGEAAALTDSPGRPFSPSSA EASPAVPPGAPSGAAPGPRSVHGQPPGKAPYPDDRTPEAQAARAQSQPAAAAAATAAAAPGAAAAGAAAPGAAPPAAVTA EPNGAPAAAGPRSVHSQPPGKGVHPDDPAYRGPVPTGPEGPASQQQPHSSAAVQGSGGDGEGGDGSAGARSVYGQPPGKN AVQIQQIAAASTQLDQADDDEEPLSPMSAGGPPHAAPWHQPQQPAKPSGSGQRRPSSAQGAAAAGAAVAHQYKPGDIVWA KIGVYPWWPAQLQRPTADEHFKPKHATTDLFCVFYGSNDYNWLPPNQIKPFHESHPDYERHAAVKNRKLQQAIDQLALAP LCKLSEVTAAVTMQALSSSKLIASGVQAKSQQQRSARAAVVVRASAEGVDRRAALGLLAAAAAVSTAQPSEAAYGDAARV FAGNITNKSGFIPYAGEGFALLIPSKWNPSKEQDFPGVVLRYEDNGDAVNNLVVLVQKVGKNNIDELGSPDKFLQDNAYL FGESAAFTGETLSEGGFLPNKVAAASVLDVQEATDKKGKKYYKYEVLTRSADGDEGGRHQLIAATVSNGNLYLIKVQCGD KRWFKGAKREAIGAWDSFTVVSVLGR(UNK)VRALWEAKLVATGVIGEPSNEGQQVIQQQLRVGLPPGMAAMPYAAALQQ QQLLAIRQQQLAAAAAAGGARGALPVGVPPHLLAQGAAGQPVHMAALHQMMQAQAQAQAAQAQAAQAQVAQAQAQAAALA AEQKRKLDAGVAEYREAKQQRTIPQQDGPADDAGEEGGGAAEEGGAAAEEEDDDDPLTEDEEGSGDEVDEAAVANVVLGQ FEKVQRSKSKWKIVLKDCVLTLDNRDYLCRKVTGEMDFS A0AAD5H4X0 Chloroplast oxygen-evolving enhancer protein 3 Chlorella ohadii 0.021618646

UniProt A0A5P4NB29

2 LEVO MQTVAQKAFAGSAVRSAATTPRAARAAVVVRASAESRRAVLGGLVAGVAALTASSAQALDLFDDRKARQAGFDIIYEARD LDLPQGVRDGLAQARENLDVAKARIKEAEKRIDADLDAYIAKAYWTEGRNELRRQVGTLRFDLNAVADTLPKAAKKEAQA AKNEFLAAVEALDLQLRKKNGDKAAAALADTKAKLDAVIAKLA A0A5P4NB29 Chlorophyll a-b binding protein, chloroplastic Chlorella ohadii 0.031706675999999996

UniProt A0AAD5E2W2

2 LEVO MQTVALFGSQGTKASLLDATNLLKGKGTASKTAAKPAAKPAAKPAAKPAVKKAAPSRGGTERSGGAGYRQYSGDALWLPN TERPAWLDGSLPGDRGFDPLGLSRPAEYLQIDLDELDQNAAVNKAGGVVGAFTPVADQVSTDSLAPYSEVFGLQRFRECE LIHGRWAMLACLGALVQEGVTGDSWVAAQTLVYNQPQYAGIDLPFDIYTLAVLNSVLMG(UNK)VELFRNSELDPERRCY PGGAFDPLNLASDDSERTQKLREAEIKHARLAMVSFLGYTVQAWYTGEGALGSLNKFANGF A0AAD5E2W2 Chlorophyll a-b binding protein, chloroplastic Chlorella ohadii 0.03085307

GenBank accession XJP35395

2 LEVO MVAMAALRVQALFGKGAKAAPKKAAKSAPAPAKKGGVSRSGGWLGSDSQNINLDKWYGPDRVLYLPGGLLARDEINPVLN GTLPGDYGYDPLGLAKDAETLAKYRANELLHARWAMLAAAGAIIPEGLAANGADVKGATWFETGAAMLNGGTLNWFAVPF VNFNNPLPLFAVVAINVALMAAAENYRRTEDGPAGYAPGVGKFDESVYSNMDNLYPGGPFDPLGLADDPEVLAELKVKEI KNGRLAMVSFLGFAVQAAVTGEGPYANWSKHVADPFGYNLLTILSSEDRAAVL Photosystem II reaction center protein T Chlorella ohadii 0.0036053989999999996

UniProt W8SY98

2 LEVO MEALVYTFLLVGTLGIIFFAIFFREPPRIVK P56327 Chloroplast PsbY Chlorella ohadii 0.036784391

Uniprot accession A0A5P4NEE0

2 LEVO MQAAACTAAPALKGCRAALPARAPRAQRAVVRAQAGKLDVQEAVAKSAALAGFSAALLSAGSANAAMEVASIAAGDNRFG TIALLAVPVLGWVGFNILNPLQNQLDAMSTGQYTGVAAGGAKKATKKRGIAAGLGLTAASLLAAQQADAAQQVADLAAGD NRFGTIALLAVPVIGWVLFNILGPLQNQLNAMSQDAPAPKKATKKRGIAAGLGLTAASLLATQSAEAAQQVADLAAGDNR FGTIALLAVPVLGWVGFNILNPLQNQLDAMSTGQYTGVAAGGAKKATKKRGIAAGLGLTAASLMATQSAEAAQQVADLAA GDNRFGTIALLAVPVIGWVLFNILGPLQNQLNAMSQEKPAAKGGKRK A0A5P4NEE0 Photosystem II reaction center protein Psb30 Chlorella ohadii 0.003450207

UniProt A0A076EAR3

2 LEVO MNLEIVLQLTALLFIVAAGPLVIVLLSSRGGNL A0A076EAR3 PSII 6.1 kDa protein Chlorella ohadii 0.049141957

UniProt A0AAD5DZE4

2 LEVO MAHQDCRFYEQQYPEVDEVVMVQVRSIAEMGAYVSLLEYGNIEGMILLSELSRRRIRSVQKLIKVGRQEPVMVLRVDKEK GYIDLSKRRVSPEDLAKCEDRFAKSKLVHSIMRHVAETTGCNLEQLYTEVAWPLYHMYGHAYNAFATMVSDAESEAVFKR LADEAHGGNVPPVLSQAVKDGILVNIRRRLTPQPIKIRADVEMTCFAYDGVEKIKESMRAAQAAGTTACPVSMKLVAAPR YVLTTQTLDKAQGIEVLTKAVEACKAAIEGSKGRMVVKEEARAVSEKEERALEEELQAAEAANREVSGDTDEDEEFEEGM DVDVDKAGLQTALCQALRAPVASKAQTRSNAGRTVVVCRAQQQNLAAKAAAAGVSVPALLAAHPALALVDDRLAGEGTGK ILGINDPSLFWAITIVFTIVWGVFYVSTREIDAASDRENDDDFGLTL A0AAD5DZE4 Photosystem II reaction center protein X (PsbX) Chlorella ohadii 0.009831387

UniProt A0AAD5H2N2

2 LEVO MQAALCSSQTAFVRPTVAAKPQQRAARAARPVVCSAVKKEQVAAGVTAAAAAVLANPLAAQAAATPSLNNLIGSVVAGGL VLAAIAGAITAVSNFDSIRR A0AAD5H2N2 Chlorophyll a-b binding protein, chloroplastic Chlorella ohadii 0.027530293

UniProt accession A0AAD5DNU0

2 LEVO MQTVAARTGVAASGATRRVTSMRRTVKAKPVKSDSVWYGPDRPKFLGPFSDGLVPAYLTGEFPGDYGWDTSGLSADPETF KKYRTIEVIHARWAMLGALGCIFPEVLEKYSGVQFGEAVWFKAGAQIFADGGLNYLGNSGLVHAQSIVATLVVQVLLMGA VEIYRANGEGPNGFGEGQDTLYPGGAFDPLGLADDPDTLAELKVKEIKNGRLAMLSMLGFFVQAIVTGKGPLDNLLQHLE EPGEFNFYALYANSLA A0AAD5DNU0 Photosystem II reaction center protein Z Chlorella ohadii 0.006727146999999999

UniProt accession W8SKL0

2 LEVO MLLIFQLALFAFIVVSFLLVVGVPVVLATPEGWAENKGTVFSGIGIWFLLVFLVGILNSFVV W8SKL0 CHLOROPHYLL B 0.000907472 120 CHL CHLOROPHYLL A 0.000893489 264 CLA 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE 0.00072297 48 LHG (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL 0.000568871 42 LUT (1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL 0.00060087 22 NEX (3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL 0.00060087 8 XAT 1,2-DIACYL-GLYCEROL-3-SN-PHOSPHATE 0.000704998 6 3PH CA-MN4-O5 CLUSTER 0.00033982699999999996 2 OEX PHEOPHYTIN A 0.0008712 4 PHO BETA-CAROTENE 0.000536873 20 BCR 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL 0.0007951159999999999 8 SQD 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE 0.0007871579999999999 22 LMG 2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE 0.000749201 4 PL9 ALPHA-LINOLENIC ACID 0.00027843 22 LNL STEARIC ACID 0.00028447699999999994 2 STE CHLORIDE ION 3.5453e-05 2 CL DIGALACTOSYL DIACYL GLYCEROL (DGDG) 0.0009492989999999999 8 DGD FE (II) ION 5.5845e-05 2 FE2 BICARBONATE ION 6.1017e-05 2 BCT PROTOPORPHYRIN IX CONTAINING FE 0.000616487 2 HEM PALMITOLEIC ACID 0.00025440799999999997 2 PAM singleParticle particle 3.0 6.5 25.0 MES 1.0 Betaine 0.008 n-Decyl-alpha-D-maltopyranoside Quantifoil R2/1 COPPER 200 CARBON HOLEY GLOW DISCHARGE 25 0.04 ETHANE 95 279 FEI VITROBOT MARK IV

C2S2M2L2 PSII-supercomplex purified by the sucrose density gradient.

TFS GLACIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 0.5 2.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN EPU 3.3 FEI FALCON IV (4k x 4k) 90.0 1 CTFFIND 4.1 PHASE FLIPPING AND AMPLITUDE CORRECTION

Ab initio reconstruction with the cryoSPARC software

C2 2.95 FSC 0.143 CUT-OFF cryoSPARC 4.3.1. 225372 MAXIMUM LIKELIHOOD cryoSPARC 4.3.1. MAXIMUM LIKELIHOOD cryoSPARC 4.3.1. emd_52056.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 454.56 454.56 454.56 90.0 90.0 90.0 X Y Z -0.73977584 1.291522 0.0009657982 0.04197028 0.94699997 0.94699997 0.94699997 0.2 AUTHOR ::::EMDATABANK.org::::EMD-52056:::: 7OUI PDB experimental model

Arabidopsis PSII supercomplex C2S2M2

8C29 PDB experimental model

Spruce PSII supercomplex C2S2

AB INITIO MODEL REAL emd_52056_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 454.56 454.56 454.56 90.0 90.0 90.0 X Y Z -0.5038302 0.6671075 0.0008566298 0.062565334 0.94699997 0.94699997 0.94699997 AUTHOR ::::EMDATABANK.org::::EMD-52056:::: emd_52056_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 454.56 454.56 454.56 90.0 90.0 90.0 X Y Z -0.47288746 0.6181547 0.0008448823 0.06260159 0.94699997 0.94699997 0.94699997 AUTHOR ::::EMDATABANK.org::::EMD-52056::::