2026-08-12 REL RCSB INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update DATABASE_REFERENCES citation citation_author _citation.journal_volume _citation.page_first _citation.page_last _citation_author.identifier_ORCID REFINEMENT_DESCRIPTION chem_comp_atom chem_comp_bond em_3d_fitting_list pdbx_initial_refinement_model _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 REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY em_admin pdbx_entry_details pdbx_nonpoly_atom_coordination pdbx_nonpoly_atom_coordination_sphere pdbx_nonpoly_atom_coordination_sphere_order _em_admin.last_update _pdbx_entry_details.has_protein_modification RCSB RCSB 2022-03-02 2022-05-18 2022-05-18 2026-08-12 National Institutes of Health/National Cancer Institute (NIH/NCI) 5 R35 CA210036 United States Breast Cancer Research Foundation BCRF-19-036 United States Cryo-EM structure of human CST bound to DNA polymerase alpha-primase in a recruitment state Cai SW Zinder JC Svetlov V Bush MW Nudler E Walz T de Lange T Fill-in, Telomere, Replication, DNA BINDING PROTEIN, DNA BINDING PROTEIN-DNA complex Cai SW Zinder JC Svetlov V Bush MW Nudler E Walz T de Lange T Cryo-EM structure of the human CST-Pol alpha /primase complex in a recruitment state. Nat.Struct.Mol.Biol. US 29 813 819 2022 35578024 doi:10.1038/s41594-022-00766-y 1545-9985 7u5c FULLOVERLAP EMDB EMD-26346 associated EM volume
Cryo-EM structure of human CST bound to DNA polymerase alpha-primase in a recruitment state
 Human CST bound to DNA polymerase alpha(POLA1 delta N)-primase in a recruitment state Human CST bound to DNA polymerase alpha(POLA1 delta N)-primase in a recruitment state 0 1 2 3 4 5 6 7 8
Sample was GraFix cross-linked with glutaraldehyde.
0.5 DNA primase small subunit Homo sapiens 0.049981012 1 Trichoplusia ni LEVO METFDPTELPELLKLYYRRLFPYSQYYRWLNYGGVIKNYFQHREFSFTLKDDIYIRYQSFNNQSDLEKEMQKMNPYKIDI GAVYSHRPNQHNTVKLGAFQAQEKELVFDIDMTDYDDVRRCCSSADICPKCWTLMTMAIRIIDRALKEDFGFKHRLWVYS GRRGVHCWVCDESVRKLSSAVRSGIVEYLSLVKGGQDVKKKVHLSEKIHPFIRKSINIIKKYFEEYALVNQDILENKESW DKILALVPETIHDELQQSFQKSHNSLQRWEHLKKVASRYQNNIKNDKYGPWLEWEIMLQYCFPRLDINVSKGINHLLKSP FSVHPKTGRISVPIDLQKVDQFDPFTVPTISFICRELDAISTNEEEKEENEAESDVKHRTRDYKKTSLAPYVKVFEHFLE NLDKSRKGELLKKSDLQKDF P49642 2.7.7.- DNA primase large subunit Homo sapiens 0.059092101999999994 1 Trichoplusia ni LEVO GGSMEFSGRKWRKLRLAGDQRNASYPHCLQFYLQPPSENISLIEFENLAIDRVKLLKSVENLGVSYVKGTEQYQSKLESE LRKLKFSYRENLEDEYEPRRRDHISHFILRLAYCQSEELRRWFIQQEMDLLRFRFSILPKDKIQDFLKDSQLQFEAISDE EKTLREQEIVASSPSLSGLKLGFESIYKIPFADALDLFRGRKVYLEDGFAYVPLKDIVAIILNEFRAKLSKALALTARSL PAVQSDERLQPLLNHLSHSYTGQDYSTQGNVGKISLDQIDLLSTKSFPPCMRQLHKALRENHHLRHGGRMQYGLFLKGIG LTLEQALQFWKQEFIKGKMDPDKFDKGYSYNIRHSFGKEGKRTDYTPFSCLKIILSNPPSQGDYHGCPFRHSDPELLKQK LQSYKISPGGISQILDLVKGTHYQVACQKYFEMIHNVDDCGFSLNHPNQFFCESQRILNGGKDIKKEPIQPETPQPKPSV QKTKDASSALASLNSSLEMDMEGLEDYFSEDS P49643 2.7.7.- DNA polymerase alpha catalytic subunit Homo sapiens 0.129635125 1 Trichoplusia ni LEVO GPGSADEEQVFHFYWLDAYEDQYNQPGVVFLFGKVWIESAETHVSCCVMVKNIERTLYFLPREMKIDLNTGKETGTPISM KDVYEEFDEKIATKYKIMKFKSKPVEKNYAFEIPDVPEKSEYLEVKYSAEMPQLPQDLKGETFSHVFGTNTSSLELFLMN RKIKGPCWLEVKSPQLLNQPVSWCKVEAMALKPDLVNVIKDVSPPPLVVMAFSMKTMQNAKNHQNEIIAMAALVHHSFAL DKAAPKPPFQSHFCVVSKPKDCIFPYAFKEVIEKKNVKVEVAATERTLLGFFLAKVHKIDPDIIVGHNIYGFELEVLLQR INVCKAPHWSKIGRLKRSNMPKLGGRSGFGERNATCGRMICDVEISAKELIRCKSYHLSELVQQILKTERVVIPMENIQN MYSESSQLLYLLEHTWKDAKFILQIMCELNVLPLALQITNIAGNIMSRTLMGGRSERNEFLLLHAFYENNYIVPDKQIFR KPQQKLGDEDEEIDGDTNKYKKGRKKAAYAGGLVLDPKVGFYDKFILLLDFNSLYPSIIQEFNICFTTVQRVASEAQKVT EDGEQEQIPELPDPSLEMGILPREIRKLVERRKQVKQLMKQQDLNPDLILQYDIRQKALKLTANSMYGCLGFSYSRFYAK PLAALVTYKGREILMHTKEMVQKMNLEVIYGDTDSIMINTNSTNLEEVFKLGNKVKSEVNKLYKLLEIDIDGVFKSLLLL KKKKYAALVVEPTSDGNYVTKQELKGLDIVRRDWCDLAKDTGNFVIGQILSDQSRDTIVENIQKRLIEIGENVLNGSVPV SQFEINKALTKDPQDYPDKKSLPHVHVALWINSQGGRKVKAGDTVSYVICQDGSNLTASQRAYAPEQLQKQDNLTIDTQY YLAQQIHPVVARICEPIDGIDAVLIATWLGLDPTQFRVHHYHKDEENDALLGGPAQLTDEEKYRDCERFKCPCPTCGTEN IYDNVFDGSGTDMEPSLYRCSNIDCKASPLTFTVQLSNKLIMDIRRFIKKYYDGWLICEEPTCRNRTRHLPLQFSRTGPL CPACMKATLQPEYSDKSLYTQLCFYRYIFDAECALEKLTTDHEKDKLKKQFFTPKVLQDYRKLKNTAEQFLSRSGYSEVN LSKLFAGCAVKS P09884 2.7.7.7 DNA polymerase alpha subunit B Homo sapiens 0.066015539 1 Trichoplusia ni LEVO MSASAQQLAEELQIFGLDCEEALIEKLVELCVQYGQNEEGMVGELIAFCTSTHKVGLTSEILNSFEHEFLSKRLSKARHS TCKDSGHAGARDIVSIQELIEVEEEEEILLNSYTTPSKGSQKRAISTPETPLTKRSVSTRSPHQLLSPSSFSPSATPSQK YNSRSNRGEVVTSFGLAQGVSWSGRGGAGNISLKVLGCPEALTGSYKSMFQKLPDIREVLTCKIEELGSELKEHYKIEAF TPLLAPAQEPVTLLGQIGCDSNGKLNNKSVILEGDREHSSGAQIPVDLSELKEYSLFPGQVVIMEGINTTGRKLVATKLY EGVPLPFYQPTEEDADFEQSMVLVACGPYTTSDSITYDPLLDLIAVINHDRPDVCILFGPFLDAKHEQVENCLLTSPFED IFKQCLRTIIEGTRSSGSHLVFVPSLRDVHHEPVYPQPPFSYSDLSREDKKQVQFVSEPCSLSINGVIFGLTSTDLLFHL GAEEISSSSGTSDRFSRILKHILTQRSYYPLYPPQEDMAIDYESFYVYAQLPVTPDVLIIPSELRYFVKDVLGCVCVNPG RLTKGQVGGTFARLYLRRPAADGAERQSPCIAVQVVRI Q14181 CST complex subunit CTC1 Homo sapiens 0.135050328 1 Trichoplusia ni LEVO GPGSMAAGRAQVPSSEQAWLEDAQVFIQKTLCPAVKEPNVQLTPLVIDCVKTVWLSQGRNQGSTLPLSYSFVSVQDLKTH QRLPCCSHLSWSSSAYQAWAQEAGPNGNPLPREQLLLLGTLTDLSADLEQECRNGSLYVRDNTGVLSCELIDLDLSWLGH LFLFPRWSYLPPARWNSSGEGHLELWDAPVPVFPLTISPGPVTPIPVLYPESASCLLRLRNKLRGVQRNLAGSLVRLSAL VKSKQKAYFILSLGRSHPAVTHVSIIVQVPAQLVWHRALRPGTAYVLTELRVSKIRGQRQHVWMTSQSSRLLLLKPECVQ ELELELEGPLLEADPKPLPMPSNSEDKKDPESLVRYSRLLSYSGAVTGVLNEPAGLYELDGQLGLCLAYQQFRGLRRVMR PGVCLQLQDVHLLQSVGGGTRRPVLAPCLRGAVLLQSFSRQKPGAHSSRQAYGASLYEQLVWERQLGLPLYLWATKALEE LACKLCPHVLRHHQFLQHSSPGSPSLGLQLLAPTLDLLAPPGSPVRNAHNEILEEPHHCPLQKYTRLQTPSSFPTLATLK EEGQRKAWASFDPKALLPLPEASYLPSCQLNRRLAWSWLCLLPSAFCPAQVLLGVLVASSHKGCLQLRDQSGSLPCLLLA KHSQPLSDPRLIGCLVRAERFQLIVERDVRSSFPSWKELSMPGFIQKQQARVYVQFFLADALILPVPRPCLHSATPSTPQ TDPTGPEGPHLGQSRLFLLCHKEALMKRNFCVPPGASPEVPKPALSFYVLGSWLGGTQRKEGTGWGLPEPQGNDDNDQKV HLIFFGSSVRWFEFLHPGQVYRLIAPGPATPMLFEKDGSSCISRRPLELAGCASCLTVQDNWTLELESSQDIQDVLDANK SLPESSLTDLLSDNFTDSLVSFSAEILSRTLCEPLVASLWMKLGNTGAMRRCVKLTVALETAECEFPPHLDVYIEDPHLP PSLGLLPGARVHFSQLEKRVSRSHNVYCCFRSSTYVQVLSFPPETTISIPLPHIYLAELLQGGQSPFQATASCHIVSVFS LQLFWVCAYCTSICRQGKCTRLGSTCPTQTAISQAIIRLLVEDGTAEAVVTCRNHHVAAALGLCPREWASLLDFVQVPGR VVLQFAGPGAQLESSARVDEPMTMFLWTLCTSPSVLRPIVLSFELERKPSKIVPLEPPRLQRFQCGELPFLTHVNPRLRL SCLSIRESEYSSSLGILASSC Q2NKJ3 CST complex subunit STN1 Homo sapiens 0.042172949 1 Trichoplusia ni LEVO MQPGSSRCEEETPSLLWGLDPVFLAFAKLYIRDILDMKESRQVPGVFLYNGHPIKQVDVLGTVIGVRERDAFYSYGVDDS TGVINCICWKKLNTESVSAAPSAARELSLTSQLKKLQETIEQKTKIEIGDTIRVRGSIRTYREEREIHATTYYKVDDPVW NIQIARMLELPTIYRKVYDQPFHSSALEKEEALSNPGALDLPSLTSLLSEKAKEFLMENRVQSFYQQELEMVESLLSLAN QPVIHSASSDQVNFKKDTTSKAIHSIFKNAIQLLQEKGLVFQKDDGFDNLYYVTREDKDLHRKIHRIIQQDCQKPNHMEK GCHFLHILACARLSIRPGLSEAVLQQVLELLEDQSDIVSTMEHYYTAF Q9H668 CST complex subunit TEN1 Homo sapiens 0.013872013 1 Trichoplusia ni LEVO MMLPKPGTYYLPWEVSAGQVPDGSTLRTFGRLCLYDMIQSRVTLMAQHGSDQHQVLVCTKLVEPFHAQVGSLYIVLGELQ HQQDRGSVVKARVLTCVEGMNLPLLEQAIREQRLYKQERGGSQ Q86WV5 canonical telomeric DNA sequence Homo sapiens 0.005682672 1 (DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG)(DG)(DG)(DT)(DT)(DA)(DG) DNA ZINC ION 6.5409e-05 4 ZN IRON/SULFUR CLUSTER 0.00035163999999999996 1 SF4 singleParticle particle 0.075 7.5 Quantifoil R1.2/1.3 GOLD GRAPHENE OXIDE GLOW DISCHARGE ETHANE 100 278 FEI VITROBOT MARK IV
The sample was cross-linked with glutaraldehyde (GraFix)
 FEI TITAN KRIOS OTHER BRIGHT FIELD FIELD EMISSION GUN 300 1.0 2.2 GATAN K3 (6k x 4k) 52.0 1 NONE 4.6 FSC 0.143 CUT-OFF RELION 3.0 131850 MAXIMUM LIKELIHOOD RELION 3.0 MAXIMUM LIKELIHOOD RELION 3.0 emd_26346.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 300 300 300 0 0 0 300 300 300 324.0 324.0 324.0 90.0 90.0 90.0 X Y Z -0.041180167 0.084259294 0.000015990241 0.0018551061 1.08 1.08 1.08 0.01 AUTHOR Human CST-Pol alpha/Primase bound to ssDNA in a recruitment state. 5EXR PDB experimental model 6W6W PDB experimental model emd_26346_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 300 300 300 0 0 0 300 300 300 324.0 324.0 324.0 90.0 90.0 90.0 X Y Z -0.01724738 0.04116153 0.000019555626 0.0017466298 1.08 1.08 1.08 AUTHOR emd_26346_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 300 300 300 0 0 0 300 300 300 324.0 324.0 324.0 90.0 90.0 90.0 X Y Z -0.015641138 0.045607746 0.0000124248445 0.0017484888 1.08 1.08 1.08 AUTHOR