Cryo-EM structure of PSI-CpcL

2026-10-07 REL PDBc INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY chem_comp chem_comp_atom em_admin pdbx_entry_details pdbx_modification_feature pdbx_nonpoly_atom_coordination pdbx_unobs_or_zero_occ_atoms pdbx_validate_chiral pdbx_validate_close_contact struct_conn struct_conn_type _chem_comp.formula _chem_comp_atom.pdbx_stereo_config _em_admin.last_update _pdbx_entry_details.has_protein_modification EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update STRUCTURE_SUMMARY atom_site em_admin pdbx_modification_feature pdbx_nonpoly_atom_coordination pdbx_nonpoly_scheme pdbx_struct_conn_angle pdbx_unobs_or_zero_occ_atoms pdbx_validate_close_contact struct_asym struct_conn _atom_site.B_iso_or_equiv _atom_site.Cartn_x _atom_site.Cartn_y _atom_site.Cartn_z _atom_site.auth_asym_id _atom_site.auth_atom_id _atom_site.auth_comp_id _atom_site.auth_seq_id _atom_site.label_asym_id _atom_site.label_atom_id _atom_site.label_comp_id _atom_site.label_entity_id _atom_site.type_symbol _em_admin.last_update _pdbx_nonpoly_atom_coordination.auth_asym_id _pdbx_nonpoly_atom_coordination.auth_seq_id _pdbx_nonpoly_atom_coordination.label_asym_id _pdbx_nonpoly_scheme.auth_mon_id _pdbx_nonpoly_scheme.auth_seq_num _pdbx_nonpoly_scheme.entity_id _pdbx_nonpoly_scheme.mon_id _pdbx_nonpoly_scheme.pdb_mon_id _pdbx_nonpoly_scheme.pdb_seq_num _pdbx_nonpoly_scheme.pdb_strand_id _pdbx_struct_conn_angle.ptnr1_auth_seq_id _pdbx_struct_conn_angle.ptnr1_label_asym_id _pdbx_struct_conn_angle.ptnr2_auth_seq_id _pdbx_struct_conn_angle.ptnr2_label_asym_id _pdbx_struct_conn_angle.ptnr3_auth_seq_id _pdbx_struct_conn_angle.ptnr3_label_asym_id _struct_asym.entity_id EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update PDBj PDBc 2025-08-18 2026-04-15 2026-04-15 2026-10-07 National Natural Science Foundation of China (NSFC) China Cryo-EM structure of PSI-CpcL Mao ZY Li ZH Han GY Photosystem I, PHOTOSYNTHESIS Mao Z Li Z Li X Shen L Kuang T Wang W Shen JR Han G Structural insight of a photosystem I-CpcL-phycobilisome supercomplex from a cyanobacterium Anabaena sp. PCC 7120. Proc.Natl.Acad.Sci.USA US 123 e2530459123 e2530459123 2026 41880560 doi:10.1073/pnas.2530459123 1091-6490 0040 PNASA6 9wd5 FULLOVERLAP EMDB EMD-65883 associated EM volume

PSI-CpcL PSI-CpcL 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Nostoc sp. PCC 7120 = FACHB-418 Photosystem I-associated linker protein CpcL Nostoc sp. PCC 7120 = FACHB-418 0.027232633 1 LEVO MALPLLEYKPTTQNQRVQSFGTADVNEDTPYIYRLENANSPSEIEELIWAAYRQVFNEQEILKFNRQIGLETQLKNRSIT VKDFIRGLAKSERFYQLVVTPNNNYRLVEMSLKRLLGRSPYNEEEKIAWSIQIASKGWGGFVDALIDSTEYEQAFGDNTV PYQRKRLTTDRPFSFTPRYGADYRDRAGIVRPGRMSNWNNSANQNYDGVAILGVLLAISAGMTFLFVLNWLGISSSF P29988 Photosystem I P700 chlorophyll a apoprotein A1 Nostoc sp. PCC 7120 = FACHB-418 0.08328967999999999 4 LEVO MTISPPEREEKKARVIVDKDPVPTSFEKWAQPGHFDRTLARGPKTTTWIWNLHALAHDFDTHTSDLEDISRKIFAAHFGH LAVVTIWLSGMIFHGAKFSNYEAWLSDPLNVRPSAQVVWPIVGQDILNGDVGGGFHGIQITSGLFQVWRGWGITNSFQLY CTAIGGLVLAGLFLFAGWFHYHKRAPKLEWFQNVESMLNHHLQVLLGCGSLGWAGHLIHVSAPINKLMDAGVAVKDIPLP HEFILNKSLLIDLFPGFAAGLTPFFTLNWGQYADFLTFKGGLNPVTGGLWMTDIAHHHLAIAVVFIIAGHQYRTNWGIGH SIKEILENHKGPFTGEGHKGLYENLTTSWHAQLATNLAFLGSLTIIIAHHMYAMPPYPYLATDYATQLCIFTHHIWIGGF LIVGGAAHAAIFMVRDYDPVVNQNNVLDRVIRHRDAIISHLNWVCIFLGFHSFGLYIHNDTMRALGRPQDMFSDTAIQLQ PVFAQWVQNLHTLAPGGTAPNALEPVSYAFGGGVLAVGGKVAMMPIALGTADFLIHHIHAFTIHVTVLILLKGVLFARSS RLIPDKANLGFRFPCDGPGRGGTCQVSGWDHVFLGLFWMYNSLSIVIFHFSWKMQSDVWGTVDAAGNVSHITGGNFAQSA ITINGWLRDFLWAQASQVINSYGSALSAYGLMFLGAHFVWAFSLMFLFSGRGYWQELIESIVWAHNKLKVAPAIQPRALS ITQGRAVGVAHYLLGGIATTWAFFHAHILSVG P58576 1.97.1.12 Photosystem I 4.8 kDa protein Nostoc sp. PCC 7120 = FACHB-418 0.004872792 4 LEVO MAKAKISPVANTGAKPPYTFRTGWALLLLAVNFLVAAYYFHIIQ P58566 Photosystem I P700 chlorophyll a apoprotein A2 1 Nostoc sp. PCC 7120 = FACHB-418 0.083457016 4 LEVO MATKFPKFSQDLAQDPTTRRIWYAMAMGNDFESHDGMTEENLYQKIFATHFGHLAIIFLWASSLLFHVAWQGNFEQWIKD PLHVRPIAHAIWDPHFGKPAIEAFTQAGANGPVNIAYSGVYHWWYTIGMRTNTELYTGSVFLLLFASLFLFAGWLHLQPK FRPSLAWFKSAESRLNHHLAGLFGVSSLAWAGHLIHVAIPESRGQHVGWDNFLSTAPHPAGLQPFFTGNWGVYAQNPDTA GHIFSTSQGAGTAILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTNFGIGHSIKEMMNAKTFFGKPVEGPFN MPHQGIYDTYNNSLHFQLGWHLACLGVVTSWVAQHMYSLPSYAFIAKDYTTQAALYTHHQYIAIFLMVGAFAHGAIFLVR DYDPEQNKGNVLERVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFGTPEKQILIEPVFAQFIQAAHGKVLYGLDT LLSNPDSVAYTAYPNYANVWLPGWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDF GYAFPCDGPGRGGTCDISAWDSFYLSLFWALNTVGWVTFYWHWKHLGIWQGNVAQFNENSTYLMGWFRDYLWANSAQLIN GYNPYGVNNLSVWAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPIANLVRWKDKPVALSIVQARVVGLAHF TVGYVLTYAAFLIASTAGKFG P58565 1.97.1.12 Photosystem I iron-sulfur center Nostoc sp. PCC 7120 = FACHB-418 0.008825206 4 LEVO MSHTVKIYDTCIGCTQCVRACPTDVLEMVPWDGCKAAQVASSPRTEDCVGCKRCETACPTDFLSIRVYLGAETTRSMGLA Y P0A410 1.97.1.12 Photosystem I reaction center subunit II Nostoc sp. PCC 7120 = FACHB-418 0.015176239999999999 4 LEVO MAETLSGKTPLFAGSTGGLLTKAVEEEKYAITWTSPKAQVFELPTGGAATMHEGENLLYIARKEYGIALGGQLRKFKITN YKIYRILPSGETTFIHPADGVFPEKVNAGREKVRFNARSIGENPNPSQVKFSGKATYDA P58573 Photosystem I reaction center subunit IV Nostoc sp. PCC 7120 = FACHB-418 0.007897051 4 LEVO MVQRGSKVRILRPESYWFQDVGTVASVDQSGIKYPVIVRFDKVNYAGINTNNFAVDELIEVEAPKAKAKK P58575 Photosystem I reaction center subunit III Nostoc sp. PCC 7120 = FACHB-418 0.017850567999999997 4 LEVO MRRLFALILVICLSFSFAPPAKALGADLTPCAENPAFQALAKNARNTTADPQSGQKRFERYSQALCGPEGYPHLIVDGRL DRAGDFLIPSILFLYIAGWIGWVGRAYLQAIKKDSDTEQKEIQLDLGIALPIIATGFAWPAAAVKELLSGELTAKDSEIT VSPR P58564 Photosystem I reaction center subunit IX Nostoc sp. PCC 7120 = FACHB-418 0.0054994219999999995 4 LEVO MADKADQSSYLIKFISTAPVAATIWLTITAGILIEFNRFFPDLLFHPLP P58568 Photosystem I reaction center subunit PsaK 1 Nostoc sp. PCC 7120 = FACHB-418 0.008852457 4 LEVO MLTSTLLAAATTPLEWSPTVGIIMVIANVIAITFGRQTIKYPSAEPALPSAKFFGGFGAPALLATTAFGHILGVGLVLGL HNLGRI P58583 Photosystem I reaction center subunit VIII Nostoc sp. PCC 7120 = FACHB-418 0.005066925 4 LEVO MATAFLPSILADASFLSSIFVPVIGWVVPIATFSFLFLYIEREDVA P58560 Photosystem I reaction center subunit XI Nostoc sp. PCC 7120 = FACHB-418 0.018130724999999997 4 LEVO MAQAVDASKNLPSDPRNREVVFPAGRDPQWGNLETPVNASPLVKWFINNLPAYRPGLTPFRRGLEVGMAHGYFLFGPFAK LGPLRDAANANLAGLLGAIGLVVLFTLALSLYANSNPPTALASVTVPNPPDAFQSKEGWNNFASAFLIGGIGGAVVAYFL TSNLALIQGLVG P58577 Photosystem I reaction center subunit XII Nostoc sp. PCC 7120 = FACHB-418 0.003538204 4 LEVO MSSISDTQVYIALVVALIPGLLAWRLATELYK Q8YNB0 CHLOROPHYLL A 0.000893489 376 CLA PHYLLOQUINONE 0.000450696 8 PQN IRON/SULFUR CLUSTER 0.00035163999999999996 12 SF4 BETA-CAROTENE 0.000536873 92 BCR 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE 0.00072297 12 LHG CHLOROPHYLL A ISOMER 0.000893489 4 CL0 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 6 LMG singleParticle particle 7.0 ETHANE TFS KRIOS OTHER BRIGHT FIELD FIELD EMISSION GUN 300 1.0 2.0 GATAN K3 BIOCONTINUUM (6k x 4k) 60.0 1 PHASE FLIPPING AND AMPLITUDE CORRECTION 2.98 FSC 0.143 CUT-OFF Coot 120345 MAXIMUM LIKELIHOOD MAXIMUM LIKELIHOOD emd_65883.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 660 660 660 0 0 0 660 660 660 686.39996 686.39996 686.39996 90.0 90.0 90.0 X Y Z -0.38888395 1.1264603 0.00017601135 0.022472747 1.04 1.04 1.04 0.185 AUTHOR ::::EMDATABANK.org::::EMD-65883:::: emd_65883_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 660 660 660 0 0 0 660 660 660 686.39996 686.39996 686.39996 90.0 90.0 90.0 X Y Z -0.7232004 1.2517443 0.0009794327 0.09260292 1.04 1.04 1.04 AUTHOR ::::EMDATABANK.org::::EMD-65883:::: emd_65883_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 660 660 660 0 0 0 660 660 660 686.39996 686.39996 686.39996 90.0 90.0 90.0 X Y Z -0.8551959 1.3169528 0.0009735337 0.092569485 1.04 1.04 1.04 AUTHOR ::::EMDATABANK.org::::EMD-65883::::