PSI-9 FCPI supercomplex from haptophyte Chrysotila roscoffensis

2026-09-23 REL PDBj INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY DATABASE_REFERENCES citation em_admin _citation.journal_volume _em_admin.last_update EXPERIMENTAL_SUMMARY citation em_admin _citation.journal_volume _em_admin.last_update REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY chem_comp chem_comp_atom em_admin pdbx_modification_feature pdbx_nonpoly_atom_coordination pdbx_validate_chiral _chem_comp.formula _chem_comp_atom.pdbx_stereo_config _em_admin.last_update EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update STRUCTURE_SUMMARY em_admin pdbx_modification_feature _em_admin.last_update _pdbx_modification_feature.ref_pcm_id EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update DATA_COLLECTION em_admin _em_admin.last_update EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update PDBj PDBj 2025-04-14 2026-04-01 2026-04-01 2026-09-23 Not funded PSI-9 FCPI supercomplex from haptophyte Chrysotila roscoffensis La Rocca R Tsai P-C Kato K Nakajima Y Akita F Shen J-R photosystem I, photosynthesis, chlorophyll, light-harvesting complex, biogenesis, assembly, LHCI, FCPI, coccolithophore, haptophyte La Rocca R Tsai PC Kato K Nakajima Y Akita F Shen JR Multiple structures of photosystem I-FCPI supercomplexes from a coccolithophore alga reveal a modular antenna organization. Biochim Biophys Acta Bioenerg NE 1867 149588 149588 2026 41864554 doi:10.1016/j.bbabio.2026.149588 1879-2650 9uh3 FULLOVERLAP EMDB EMD-64153 associated EM volume

Photosystem I (PSI) with 9 fucoxanthin chlorophyll a/c binding protein I (FCPI) supercomplex from haptophyte Chrysotila roscoffensis Photosystem I (PSI) with 9 fucoxanthin chlorophyll a/c binding protein I (FCPI) supercomplex from haptophyte Chrysotila roscoffensis 0 8

PSI-9 FCPI supercomplex.

Chrysotila roscoffensis Photosystem I P700 chlorophyll a apoprotein A1 (psaA) Chrysotila roscoffensis 0.08336893799999999 1 LEVO MKIGSKELEAKKVQVVVDKDPVVTSFEKWAQPGHFSRTLAKGPKTTTWIWNLHADAHDFDSQTSSLEDISRKIFSAHFGQ LAIIFLWISGMYFHGARFSNYSAWLANPTTIKPSAQVVWPIVGQEILNGDVGGGFAGVQITSGFFQLWRASGITSEIELY WTAIGGLIMSALMVFAGWFHYHKAAPKLEWFQNAESMMNHHLAGLLGLGCLGWAGHQIHVSLPINKLLDAGVSPQEIPLP YELIFNQDLMAQLYPSFKQGLVPFFTLNWSAYSDFLTFKGGLNPITGSLWLSDTAHHHLALSVLFIFAGHMYRTNWGIGH SMKEILEAHKGPLTGEGHKGLYEILTTSWHAQLAINLAMMGSVSIIVAHHMYAMPPYPYIGIDYPTQLSLFTHHMWIGGF CVCGAGAHASIFMVRDYSPVQSYNNLLDRVLRHRDAIISHLNWVCIFLGTHSFGLYIHNDTMRALGRPQDMFSDKAIQLQ PIFAQWVQSLHTLAPGNTAPNALATTSYAFGGDVVAVNGKIAMMPIALGTADFLVHHIHAFTIHVTVLILLKGTLFARNS RLIPDKANLGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYNCISVVIFHFSWKMQSDVWGTVSAAGKISHVTGGNFANSA LTINGWLRDFLWSEASQVIQSYGSALSAYGLIFLGAHFIWAFSLMFLFSGRGYWQELIESIVWAHSKLKLAPAIQPRALS ITQGRAVGLAHYLLGGIGTTWSFFLARIISVG Photosystem I P700 chlorophyll a apoprotein A2 (psaB) Chrysotila roscoffensis 0.082002906 1 LEVO MATKFPKFSQALAQDPATRRIWYGIATAHDLESHDGMSEENLYQKIFASHFGHLAIIFLWTSGNLFHVAWQGNFQQWVLN PLKVKPIAHAIWDPHFGQSAIKAFTRAGVSYPVNIATSGVYHWWYTIGMRTNNDLYFGALGLLILSTALLFAGWLHLQPK FRPGLAWFKNNESRLNHHLSGLFGVSSLAWSGHLIHVAIPESRGQHIGWDNFTSTLPHPDGLTPFFTGNWGLYAENPDTV KHIFGTSEGAGTAILTFLGGFHPQTQSMWLTDIAHHHLAIAVLFIFAGHMYRTNWGIGHSMKEILDAHVPPKGRLGAGHR GLFETITDSLHMQLGLALASLGVATSLVAQHMYALPPYAFMAKDYVTQAALYTHHQYIAGFLMVGAFAHGAIFFVRDYDP EVNKDNVLARMLQHKEAIISHLSWVSLFLGFHTLGLYIHNDVCVAFGTPEKQILFEPVFAQFIQASSGKAVYGFDVLLSS STSAATVASSKIWLPGWLEAINSGKNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDFGYSFPCD GPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYWHFKHMTIWGGNAAAFNESSTYLMGWLRDYLWLNSSPLINGYNAFGM NAQAVWAWMFLFGHLIWATGFMFLISWRGYWQELIETLVWAHERTPIANLVRWKDKPVALSIVQARLVGLAHFTVGYIFT YAPFVIASTTGKFG Photosystem I iron-sulfur center (psaC) Chrysotila roscoffensis 0.008836193999999999 1 LEVO MSHNVRIYDTCIGCTQCVRACPCDVLEMVPWDGCKAGQIASAPRAEDCIGCKRCETACPTDFLSVRVYLGSETTRSLGLS Y Photosystem I reaction center subunit II (psaD) Chrysotila roscoffensis 0.015936089 1 LEVO MSTDILNLQIPSPTFGGSTGGWLRAAETEEKYAITWTSKKEQVFEMPTSGSAIMQKGENLLYLAKKEQCLALGSQLRTGF KIQDYKIYRIFPNSEIQYLHPKDGVFPEKLNEGRIGVGNVDHSIGKNKQPVNVKFSGRNTFD Photosystem I reaction center subunit IV (psaE) Chrysotila roscoffensis 0.007342328 1 LEVO MVSRGSVVRVMRPESYWFQETGTVATIAKGGDRYPVVVRFDKVNYAGVATNNFAVDELVEVSAPPAK Photosystem I reaction center subunit III (psaF) Chrysotila roscoffensis 0.020163416 1 LEVO MKRILSILFLFSVIGNAPLVASADVSGLVPCKDSSVFNRRLDGSVKKLTTRLKNYEEGTPAYLALEQQIAQTKTRFAMYA DKGLLCGTDGLPHLIADGRFSHAGEFMIPGVGFLYITGWIGWAGRSYLQFSKKTDKPNESEIIINVPVALSMMSAAFIWP LAAWKELVSGQLLVSADEITVSPR Photosystem I reaction center subunit VIII (psaI) Chrysotila roscoffensis 0.0039006819999999995 1 LEVO MTASFLPSILTPVVTLIFPGLCFALFFVLIEQEEI Photosystem I reaction center subunit IX (psaJ) Chrysotila roscoffensis 0.004340065999999999 1 LEVO MDKNLLTYLSTAPVLLTAWMTITAGFSIEFLRFFPDAAA Photosystem I reaction center subunit XI (psaL) Chrysotila roscoffensis 0.015045253 1 LEVO MSEFVKPYNNDPFVGNLSTPVTTSTATKLYLGNLPIYRKGLSSLRRGLEIGMAHGYFLVGPFYLLGPLRNSESALLIGLF AAFGLILILTLALTIYGLASFQDNETGDALESSSGWQKFTSGFFVGASGGAVVAYVLLANI Photosystem I reaction center subunit XII (psaM) Chrysotila roscoffensis 0.0030826779999999997 1 LEVO MITDGQIFLALTVALTAAIFAIGLGRQLY Fucoxanthin chlorophyll a/c binding protein III (FCPI-3) Chrysotila roscoffensis 0.021458887 1 LEVO MTATAFSGPSLPVGRAAAPAISMMAERSASIPFLNKPPALDGSMVGDVGFDPLGFSTTITELGGDLNYVREAELMHGRQA MLATVGFVFPSIFGKIPSDWSASVSTDPLVAQYQLPGTVLGQLIFSIAVAEGIRASIIFKKDSVPGEHGFDPAGFIPKFC NTPEKMAEMKLKELKHCRIAMIAITGFFFQETITGHVVPFL Fucoxanthin chlorophyll a/c binding protein VI (FCPI-6) Chrysotila roscoffensis 0.024382199 1 LEVO MLSLVASAPAFVPPTGLVAPAMQPLTQIRMAEGPMYDAPLAPSGMGAEFINAERAPISSYVGASWEAGDVVYDPLDLCEL WKVSANNPDAAFLREAELKHCRLAMLAFAGIIHTSAGFHIPGEIWAVDDWSAALSTVQAKNPAALGQIFAGIGIIEGYTS KGVFDMWFGKTTVRAPGKLGFDPLGLMPKDKEGAAKMELSELKNGRMAMIAVAGIACNHYIPGSVPGCPFP Fucoxanthin chlorophyll a/c binding protein IV (FCPI-4) Chrysotila roscoffensis 0.02106448 1 LEVO MLSLVSGSLAFTAPLTPAVTQTRAHAPNMLKSQALPFVEAPKALDGSMVGDVGFDPLNLSDGLDLKFMREAELKHGRICM LAWLGYVVVDLGITAPGAPSVSSLAAHDTAVKEGAMYLLLMLVSGFEAISTPAVYEMMSGQSDRKPGDFQLDPFGWAKGD KAEKMMLSEVIHCRTAMLAFSGVVTQSALKEIGFPYF Photosystem I reaction center subunit psaR Chrysotila roscoffensis 0.009637013 1 LEVO MELKAQDTWWGDKDYPDSIVLGIGKGVPSIVYSVSSLIALALGSYCVAESNLLNILSGSTVNGFYVVGAVLVPYSWGLHV AAWIQKQNGK Fucoxanthin chlorophyll a/c binding protein II (FCPI-2) Chrysotila roscoffensis 0.022708201 1 LEVO MAVRTLLLCAAIGSAAALTAPVTRAVRPAVRRTTDVQAVVNFDSAASQWNAEFPYLAKFGFGPSAKAERWNGRHAMFGWV VIVATGYAQSHGLIPSPDVPLSYSSWGGLAQMGFNEYITNERAVIMIAHTHFLAFSLAAAFGPKVLDSLTLANGESDEEP AGFMPAIQPGLTASAELLNGRMAMLGLVLLVLTSAFTGKEILDVVNIGLGGLLLK Fucoxanthin chlorophyll a/c binding protein I (FCPI-1) Chrysotila roscoffensis 0.020547621 1 LEVO MAAYLISLASPSFVPGAAVHHIAPTITSQQQIVAKVDGLVGDSAPLGFFDPLGYTKKASPADLKKYRECELKHGRVAMLA SMGMVVADFWHPLYGGGNSANPLVAITQVPKAGLLQILAFIGFMEVMGQLNMQRADYEPGNFLGSGQWETSESWDDYQTR ELNNGRLAMFASIGMLAHAALTGKGPLELIF Fucoxanthin chlorophyll a/c binding protein VII (FCPI-7) Chrysotila roscoffensis 0.022153486 1 LEVO MLSLVSASFAFNAAPAVVPATRAGVVSMAISNPSNAVPFLTAPPSQSSGLPGAETGFDPLYLSEYIDVKWAREAELKHGR ICMLACLGILVQEFISLPGYPGYDANPVAAFSSVDPQALAQIFVGMSIVELVSNKGKYSSMDMFEDGTKTPGDFGFDPLN YGKDPSKRAELEMKELKNGRLAMLGFSGMIHQVLITGKPLLAGLGDILS Fucoxanthin chlorophyll a/c binding protein VIII (FCPI-8) Chrysotila roscoffensis 0.018375294999999996 1 LEVO VEYSQSMPFLVKRKALNGYVGDVGFDPLGFSEILPMDWLREAELKHCRVCMLATVGFVFTDFLTLPGSIYQVSTLDAHDV SVASGSMSQLLLWIGIAEIISVVAIQQMLAGSGRAPGEFGFDPMGFAKDASKKADLEMKELANGRLAMMAFSGMVTQAVL TGNSFPYLY Fucoxanthin chlorophyll a/c binding protein IX (FCPI-9) Chrysotila roscoffensis 0.021144477 1 LEVO MLSTVLLAQNAAGFAPQLTPAHSASRVAGVAMQAKSKAIPFLNQPPALDGTLAGDVGFDPLMLSSLIPLKWAREAELKHC RLAMLATAGWLAVDFGITAPDAPQVSSLAAHDATVDKGPMWFLLLVASVFEIVGGTPKVFQLLNDPDAAGPGEYKFNPLN IKSDKVMEEKEIANGRLAMMAFSGIVTQAALTGNGFPYMY Fucoxanthin chlorophyll a/c binding protein V (FCPI-5) Chrysotila roscoffensis 0.021379759999999998 1 LEVO MISMVNAALAFAGQHAVLNGVARATAPVMQQKSQSVPFLDRPAALDGTMVGDVGFDPLGISSGIPMAWLRESELKHGRVC MLATVGYIAVDMGIRAPYAETLSVTSLTAHDATVATGQMWLLLIACGVLEVAGAAGIAATLSGSDRKPGYFAFDPLGFGK DPKQMERMELSEIKNGRLAMLAFSGIVTQDALFEHAKNFPYL Photosystem I reaction center subunit psaK Chrysotila roscoffensis 0.008915401 1 LEVO MVDPSAVDAASQLLAIADPGFTPAKTAVMAASNLLVMGTTKIQGKSLIGGTKHDEMVDTFGMTWLLATASLGHIVGVGAI LGLTATGVL CHLOROPHYLL A 0.000893489 175 CLA PHYLLOQUINONE 0.000450696 2 PQN 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE 0.00072297 4 LHG BETA-CAROTENE 0.000536873 19 BCR DODECYL-ALPHA-D-MALTOSIDE 0.000510615 11 LMU CHLOROPHYLL A ISOMER 0.000893489 1 CL0 IRON/SULFUR CLUSTER 0.00035163999999999996 3 SF4 DIGALACTOSYL DIACYL GLYCEROL (DGDG) 0.0009492989999999999 1 DGD 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL 0.0007951159999999999 2 SQD (3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,beta-carotene-3,3'-diol 0.000582855 31 DD6 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE 0.0007871579999999999 6 LMG Chlorophyll c1 0.000610941 10 KC1 (3S,3'S,5R,5'R,6S,6'R,8'R)-3,5'-dihydroxy-8-oxo-6',7'-didehydro-5,5',6,6',7,8-hexahydro-5,6-epoxy-beta,beta-caroten-3'- yl acetate 0.0006589059999999999 7 A86 water 1.8015e-05 514 HOH singleParticle particle 1 7.5 10.0 HEPES 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid 50.0 NaCl sodium chloride 0.05 alpha-DDM n-Dodecyl alpha-maltoside Quantifoil R1.2/1.3 COPPER 300 GLOW DISCHARGE 10 0.007 ETHANE 100 281 FEI VITROBOT MARK IV TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.8 1.8 165000.0 FEI FALCON IV (4k x 4k) 50.0 1 PHASE FLIPPING AND AMPLITUDE CORRECTION 8Z11

PSI-FCPI supercomplex from haptophyte I. galbana.

12 C1 FOURIER SPACE 1.74 FSC 0.143 CUT-OFF 191444 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD emd_64153.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 600 600 600 0 0 0 600 600 600 436.2 436.2 436.2 90.0 90.0 90.0 X Y Z -0.618427 1.8847094 -0.000115612565 0.01953725 0.727 0.727 0.727 0.065 AUTHOR ::::EMDATABANK.org::::EMD-64153:::: Cryo-EM map of the PSI-9 FCPI supercomplex from haptophyte Chrysotila roscoffensis. emd_64153_msk_1.map emd_64153_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 600 600 600 0 0 0 600 600 600 436.2 436.2 436.2 90.0 90.0 90.0 X Y Z -0.25527352 1.0314012 0.000099408804 0.026631767 0.727 0.727 0.727 AUTHOR ::::EMDATABANK.org::::EMD-64153:::: Half-A map. emd_64153_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 600 600 600 0 0 0 600 600 600 436.2 436.2 436.2 90.0 90.0 90.0 X Y Z -0.2621576 1.0967927 0.00009591158 0.026598504 0.727 0.727 0.727 AUTHOR ::::EMDATABANK.org::::EMD-64153:::: Half-B map.