2026-09-16 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY PDBe PDBe 2026-02-10 2026-09-16 2026-09-16 2026-09-16 German Research Foundation (DFG) Germany Human PRC1.4 in complex with native UBCH5C bound to a H3Kc27me3 mononucleosome Ciapponi M Mueller J PRC1, PRC1.4, nucleosome, UBCH5C, GENE REGULATION, H3Kc27me3 Ciapponi M Cafiso M Schkoelziger S Benda C Bonnet J Mueller J Cryo-EM structure, enzymatic activity and genome targeting of canonical PRC1 Nat.Struct.Mol.Biol. US 2026 doi:10.1038/s41594-026-01885-6 1545-9985 EMD-56717 other EM volume
Human PRC1.4 bound to a H3Kc27me3 mononucleosome
 28oe FULLOVERLAP EMDB EMD-56669 associated EM volume
Human PRC1.4 in complex with native UBCH5C bound to a H3Kc27me3 mononucleosome
 EMDB EMD-56717 other EM volume
Human PRC1.4 bound to a H3Kc27me3 mononucleosome
 Human PRC1.4 in complex with native UBCH5C bound to a H3Kc27me3 mononucleosome Human PRC1.4 in complex with native UBCH5C bound to a H3Kc27me3 mononucleosome 0 1 2 3 4 5 6 7 8 9 10 11 Homo sapiens Isoform 2 of Polyhomeotic-like protein 2 Homo sapiens 0.036200987999999996 1 Trichoplusia ni LEVO GPDSMTSGNGNSASSIAGTAPQNGENKPPQAIVKPQILTHVIEGFVIQEGAEPFPVGRSSLLVGNLKKKYAQGFLPEKLP QQDHTTTTDSEMEEPYLQESKEEGAPLKLKCELCGRVDFAYKFKRSKRFCSMACAKRYNVGCTKRVGLFHSDRSKLQKAG AATHNRRRASKASLPPLTKDTKKQPTGTVPLSVTAALQLTHSQEDSSRCSDNSSYEEPLSPISASSSTSRRRQGQRDLEL PDMHMRDLVGMGHHFLPSEPTKWNVEDVYEFIRSLPGCQEIAEEFRAQEIDGQALLLLKEDHLMSAMNIKEGPAEKIYAR ISMLKDS Q8IXK0 Chromobox 7 Homo sapiens 0.018268504 1 Trichoplusia ni LEVO GPDSMELSAIGEQVFAVESIRKKRVRKGKVEYLVKWKGWPPKYSTWEPEEHILDPRLVMAYEEKEERDRASGYRKRGPKP KRLLLQEPPAPDVLQAAGEWEPAAQPPEEEADADLAEGPPPWTPALPSSEVTVTDITANSITVTFREAQAAEGFFRDRSG KF B0QYP2 E3 ubiquitin-protein ligase RING2 Homo sapiens 0.038062707 1 Trichoplusia ni LEVO GPDSMSQAVQTNGTQPLSKTWELSLYELQRTPQEAITDGLEIVVSPRSLHSELMCPICLDMLKNTMTTKECLHRFCADCI ITALRSGNKECPTCRKKLVSKRSLRPDPNFDALISKIYPSRDEYEAHQERVLARINKHNNQQALSHSIEEGLKIQAMNRL QRGKKQQIENGSGAEDNGDSSHCSNASTHSNQEAGPSNKRTKTSDDSGLELDNNNAAMAIDPVMDGASEIELVFRPHPTL MEKDDSAQTRYIKTSGNATVDHLSKYLAVRLALEELRSKGESNQMNLDTASEKQYTIYIATASGQFTVLNGSFSLELVSE KYWKVNKPMELYYAPTKEHK Q99496 2.3.2.27 Polycomb complex protein BMI-1 Homo sapiens 0.03802418 1 Trichoplusia ni LEVO MHRTTRIKITELNPHLMCVLCGGYFIDATTIIECLHSFCKTCIVRYLETSKYCPICDVQVHKTRPLLNIRSDKTLQDIVY KLVPGLFKNEMKRRRDFYAAHPSADAANGSNEDRGEVADEDKRIITDDEIISLSIEFFDQNRLDRKVNKDKEKSKEEVND KRYLRCPAAMTVMHLRKFLRSKMDIPNTFQIDVMYEEEPLKDYYTLMDIAYIYTWRRNGPLPLKYRVRPTCKRMKISHQR DGLTNAGELESDSGSDKANSPAGGIPSTSSCLPSPSTPVQSPHPQFPHISSTMNGTSNSPSGNHQSSFANRPRKSSVNGS SATSSGGSGSLEVLFQ P35226 Ubiquitin-conjugating enzyme E2 D3 Homo sapiens 0.016706133 1 Escherichia coli LEVO MALKRINKELSDLARDPPAQCSAGPVGDDMFHWQATIMGPNDSPYQGGVFFLTIHFPTDYPFKPPKVAFTTRIYHPNINS NGSICLDILRSQWSPALTISKVLLSICSLLCDPNPDDPLVPEIARIYKTDRDKYNRISREWTQKYAM Q4R5N4 2.3.2.23 Histone H3 Xenopus 0.015271862999999998 2 Escherichia coli LEVO ARTKQTARKSTGGKAPRKQLATKAARKSAPATGGVKKPHRYRPGTVALREIRRYQKSTELLIRKLPFQRLVREIAQDFKT DLRFQSSAVMALQEASEAYLVALFEDTNLAAIHAKRVTIMPKDIQLARRIRGERA A0A310TTQ1 Histone H4 Xenopus 0.011263230999999999 2 Escherichia coli LEVO SGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLKVFLENVIRDAVTYTEHAKRKT VTAMDVVYALKRQGRTLYGFGG P62798 Histone H2A Xenopus 0.013978240999999999 2 Escherichia coli LEVO SGRGKQGGKTRAKAKTRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYLAAVLEYLTAEILELAGNAARDNKKTRIIP RHLQLAVRNDEELNKLLGRVTIAQGGVLPNIQSVLLPKKTESSKSAKSK Q6AZJ8 Histone H2B Xenopus 0.013524752 2 Escherichia coli LEVO AKSAPAPKKGSKKAVTKTQKKDGKKRRKTRKESYAIYVYKVLKQVHPDTGISSKAMSIMNSFVNDVFERIAGEASRLAHY NKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVTKYTSAK A0A1B8Y854 DNA (151-MER) Homo sapiens 0.07645659399999999 1 (DA)(DT)(DA)(DT)(DC)(DT)(DC)(DG)(DG)(DG)(DC)(DT)(DT)(DA)(DT)(DG)(DT)(DG)(DA)(DT) (DG)(DG)(DA)(DC)(DC)(DC)(DT)(DA)(DT)(DA)(DC)(DG)(DC)(DG)(DG)(DC)(DG)(DG)(DA)(DC) (DC)(DT)(DG)(DG)(DA)(DG)(DA)(DA)(DT)(DC)(DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA) (DG)(DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA)(DA)(DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA)(DG) (DA)(DC)(DA)(DG)(DC)(DT)(DC)(DT)(DA)(DG)(DC)(DA)(DC)(DC)(DG)(DC)(DT)(DT)(DA)(DA) (DA)(DC)(DG)(DC)(DA)(DC)(DG)(DT)(DA)(DC)(DG)(DC)(DG)(DC)(DT)(DG)(DT)(DC)(DC)(DC) (DC)(DC)(DG)(DC)(DG)(DT)(DT)(DT)(DT)(DA)(DA)(DC)(DC)(DG)(DC)(DC)(DA)(DA)(DG)(DG) (DG)(DG)(DA)(DT)(DT)(DA)(DC)(DT)(DC)(DC)(DC)(DT)(DA)(DG)(DT)(DC)(DT)(DC)(DC)(DA) (DG)(DG)(DC)(DA)(DC)(DG)(DT)(DG)(DT)(DC)(DA)(DG)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DC) (DA)(DT)(DC)(DC)(DT)(DG)(DT)(DG)(DT)(DA)(DT)(DT)(DT)(DA)(DT)(DT)(DG)(DA)(DA)(DC) (DA)(DG)(DC)(DG)(DA)(DC)(DT)(DC)(DG)(DG)(DG)(DA)(DT)(DA)(DT)(DC)(DT)(DC)(DT)(DA) (DG)(DA)(DG)(DT)(DC)(DG)(DA)(DC)(DC)(DT)(DG)(DC)(DA)(DG)(DG)(DC)(DA)(DT)(DG)(DC) (DA)(DA)(DG)(DC)(DT)(DT)(DG)(DG) DNA DNA (151-MER) Homo sapiens 0.076716836 1 (DC)(DC)(DA)(DA)(DG)(DC)(DT)(DT)(DG)(DC)(DA)(DT)(DG)(DC)(DC)(DT)(DG)(DC)(DA)(DG) (DG)(DT)(DC)(DG)(DA)(DC)(DT)(DC)(DT)(DA)(DG)(DA)(DG)(DA)(DT)(DA)(DT)(DC)(DC)(DC) (DG)(DA)(DG)(DT)(DC)(DG)(DC)(DT)(DG)(DT)(DT)(DC)(DA)(DA)(DT)(DA)(DA)(DA)(DT)(DA) (DC)(DA)(DC)(DA)(DG)(DG)(DA)(DT)(DG)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA) (DC)(DA)(DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG)(DG)(DA)(DG)(DA)(DT)(DT)(DA)(DG)(DG)(DG) (DA)(DG)(DT)(DA)(DA)(DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG)(DG)(DC)(DG)(DG)(DT)(DT)(DA) (DA)(DA)(DA)(DC)(DG)(DC)(DG)(DG)(DG)(DG)(DG)(DA)(DC)(DA)(DG)(DC)(DG)(DC)(DG)(DT) (DA)(DC)(DG)(DT)(DG)(DC)(DG)(DT)(DT)(DT)(DA)(DA)(DG)(DC)(DG)(DG)(DT)(DG)(DC)(DT) (DA)(DG)(DA)(DG)(DC)(DT)(DG)(DT)(DC)(DT)(DA)(DC)(DG)(DA)(DC)(DC)(DA)(DA)(DT)(DT) (DG)(DA)(DG)(DC)(DG)(DG)(DC)(DC)(DT)(DC)(DG)(DG)(DC)(DA)(DC)(DC)(DG)(DG)(DG)(DA) (DT)(DT)(DC)(DT)(DC)(DC)(DA)(DG)(DG)(DT)(DC)(DC)(DG)(DC)(DC)(DG)(DC)(DG)(DT)(DA) (DT)(DA)(DG)(DG)(DG)(DT)(DC)(DC)(DA)(DT)(DC)(DA)(DC)(DA)(DT)(DA)(DA)(DG)(DC)(DC) (DC)(DG)(DA)(DG)(DA)(DT)(DA)(DT) DNA ZINC ION 6.5409e-05 4 ZN singleParticle particle 7.5 ETHANE TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.6 2.2 GATAN K3 (6k x 4k) 60.45 1 PHASE FLIPPING AND AMPLITUDE CORRECTION
Ab intio
 2.74 FSC 0.143 CUT-OFF cryoSPARC 304443 RANDOM ASSIGNMENT MAXIMUM LIKELIHOOD emd_56669.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 340.47998 340.47998 340.47998 90.0 90.0 90.0 Z Y X -0.2812143 0.647978 0.00044160284 0.016586456 0.8511999 0.8511999 0.8511999 0.07 AUTHOR sharpened map AlphaFold in silico model 4R8P PDB experimental model emd_56669_msk_1.map emd_56669_additional_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 340.47998 340.47998 340.47998 90.0 90.0 90.0 X Y Z -0.26891688 0.7692079 0.00033534935 0.016595202 0.8511999 0.8511999 0.8511999 AUTHOR unsharpened map emd_56669_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 340.47998 340.47998 340.47998 90.0 90.0 90.0 Z Y X -0.16929089 0.39229536 0.0003232042 0.013132339 0.8511999 0.8511999 0.8511999 AUTHOR Focus refinement sharpened map emd_56669_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 340.47998 340.47998 340.47998 90.0 90.0 90.0 X Y Z -0.5962156 0.90192646 0.0005045966 0.071810715 0.8511999 0.8511999 0.8511999 AUTHOR Half map B of unsharpened map emd_56669_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 340.47998 340.47998 340.47998 90.0 90.0 90.0 X Y Z -0.68113446 0.8717194 0.00051137 0.07144332 0.8511999 0.8511999 0.8511999 AUTHOR Half map A of unsharpened map