+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-29941 | |||||||||
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Title | HPV16 E6-E6AP-p53 complex | |||||||||
Map data | ||||||||||
Sample |
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Keywords | Complex / HPV / ubiquitin ligase / tumor suppressor / VIRAL PROTEIN | |||||||||
Function / homology | Function and homology information sperm entry / positive regulation of Golgi lumen acidification / symbiont-mediated suppression of host transcription / motor learning / negative regulation of dendritic spine morphogenesis / regulation of ubiquitin-dependent protein catabolic process / prostate gland growth / HECT-type E3 ubiquitin transferase / regulation of proteolysis / activation of GTPase activity ...sperm entry / positive regulation of Golgi lumen acidification / symbiont-mediated suppression of host transcription / motor learning / negative regulation of dendritic spine morphogenesis / regulation of ubiquitin-dependent protein catabolic process / prostate gland growth / HECT-type E3 ubiquitin transferase / regulation of proteolysis / activation of GTPase activity / Loss of function of TP53 in cancer due to loss of tetramerization ability / Regulation of TP53 Expression / signal transduction by p53 class mediator / negative regulation of G1 to G0 transition / negative regulation of glucose catabolic process to lactate via pyruvate / Transcriptional activation of cell cycle inhibitor p21 / regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Activation of NOXA and translocation to mitochondria / negative regulation of pentose-phosphate shunt / ATP-dependent DNA/DNA annealing activity / negative regulation of helicase activity / regulation of cell cycle G2/M phase transition / intrinsic apoptotic signaling pathway in response to hypoxia / regulation of fibroblast apoptotic process / oxidative stress-induced premature senescence / oligodendrocyte apoptotic process / negative regulation of miRNA processing / positive regulation of thymocyte apoptotic process / glucose catabolic process to lactate via pyruvate / regulation of tissue remodeling / positive regulation of mitochondrial membrane permeability / negative regulation of mitophagy / positive regulation of programmed necrotic cell death / mRNA transcription / bone marrow development / circadian behavior / T cell proliferation involved in immune response / regulation of mitochondrial membrane permeability involved in apoptotic process / histone deacetylase regulator activity / RUNX3 regulates CDKN1A transcription / germ cell nucleus / regulation of DNA damage response, signal transduction by p53 class mediator / TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain / TP53 Regulates Transcription of Death Receptors and Ligands / Activation of PUMA and translocation to mitochondria / DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / negative regulation of neuroblast proliferation / negative regulation of glial cell proliferation / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / Regulation of TP53 Activity through Association with Co-factors / positive regulation of execution phase of apoptosis / mitochondrial DNA repair / T cell lineage commitment / negative regulation of DNA replication / ER overload response / B cell lineage commitment / thymocyte apoptotic process / positive regulation of cardiac muscle cell apoptotic process / TP53 regulates transcription of several additional cell death genes whose specific roles in p53-dependent apoptosis remain uncertain / TP53 Regulates Transcription of Caspase Activators and Caspases / entrainment of circadian clock by photoperiod / cardiac septum morphogenesis / androgen receptor signaling pathway / PI5P Regulates TP53 Acetylation / Association of TriC/CCT with target proteins during biosynthesis / locomotory exploration behavior / progesterone receptor signaling pathway / Zygotic genome activation (ZGA) / necroptotic process / rRNA transcription / positive regulation of release of cytochrome c from mitochondria / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / TFIID-class transcription factor complex binding / mitophagy / negative regulation of telomere maintenance via telomerase / SUMOylation of transcription factors / carbohydrate transmembrane transporter activity / intrinsic apoptotic signaling pathway by p53 class mediator / neuroblast proliferation / general transcription initiation factor binding / cellular response to actinomycin D / Transcriptional Regulation by VENTX / DNA damage response, signal transduction by p53 class mediator / response to X-ray / replicative senescence / chromosome organization / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / gastrulation / cellular response to UV-C / response to inorganic substance / hematopoietic stem cell differentiation / intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / positive regulation of RNA polymerase II transcription preinitiation complex assembly / protein K48-linked ubiquitination / negative regulation of reactive oxygen species metabolic process / MDM2/MDM4 family protein binding / embryonic organ development / glial cell proliferation / protein autoubiquitination / Pyroptosis Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) / Homo sapiens (human) / Human papillomavirus type 16 | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.38 Å | |||||||||
Authors | Bratkowski MA / Wang JCK / Hao Q / Nile AH | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2024 Title: Structure of the p53 degradation complex from HPV16. Authors: John C K Wang / Hannah T Baddock / Amirhossein Mafi / Ian T Foe / Matthew Bratkowski / Ting-Yu Lin / Zena D Jensvold / Magdalena Preciado López / David Stokoe / Dan Eaton / Qi Hao / Aaron H Nile / Abstract: Human papillomavirus (HPV) is a significant contributor to the global cancer burden, and its carcinogenic activity is facilitated in part by the HPV early protein 6 (E6), which interacts with the E3- ...Human papillomavirus (HPV) is a significant contributor to the global cancer burden, and its carcinogenic activity is facilitated in part by the HPV early protein 6 (E6), which interacts with the E3-ligase E6AP, also known as UBE3A, to promote degradation of the tumor suppressor, p53. In this study, we present a single-particle cryoEM structure of the full-length E6AP protein in complex with HPV16 E6 (16E6) and p53, determined at a resolution of ~3.3 Å. Our structure reveals extensive protein-protein interactions between 16E6 and E6AP, explaining their picomolar binding affinity. These findings shed light on the molecular basis of the ternary complex, which has been pursued as a potential therapeutic target for HPV-driven cervical, anal, and oropharyngeal cancers over the last two decades. Understanding the structural and mechanistic underpinnings of this complex is crucial for developing effective therapies to combat HPV-induced cancers. Our findings may help to explain why previous attempts to disrupt this complex have failed to generate therapeutic modalities and suggest that current strategies should be reevaluated. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_29941.map.gz | 230.2 MB | EMDB map data format | |
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Header (meta data) | emd-29941-v30.xml emd-29941.xml | 21.8 KB 21.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_29941_fsc.xml | 14.2 KB | Display | FSC data file |
Images | emd_29941.png | 43.6 KB | ||
Masks | emd_29941_msk_1.map | 244.1 MB | Mask map | |
Filedesc metadata | emd-29941.cif.gz | 7.4 KB | ||
Others | emd_29941_half_map_1.map.gz emd_29941_half_map_2.map.gz | 226.8 MB 226.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-29941 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-29941 | HTTPS FTP |
-Related structure data
Related structure data | 8gcrMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_29941.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_29941_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_29941_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_29941_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Ternary complex of HPV16 E6, E6AP, and p53
Entire | Name: Ternary complex of HPV16 E6, E6AP, and p53 |
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Components |
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-Supramolecule #1: Ternary complex of HPV16 E6, E6AP, and p53
Supramolecule | Name: Ternary complex of HPV16 E6, E6AP, and p53 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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-Supramolecule #2: HPV16 E6 - MBP Fusion
Supramolecule | Name: HPV16 E6 - MBP Fusion / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: Escherichia coli (E. coli) |
-Supramolecule #3: p53
Supramolecule | Name: p53 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
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Source (natural) | Organism: Homo sapiens (human) |
-Supramolecule #4: E6AP
Supramolecule | Name: E6AP / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #3 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Maltose/maltodextrin-binding periplasmic protein,Protein E6
Macromolecule | Name: Maltose/maltodextrin-binding periplasmic protein,Protein E6 type: protein_or_peptide / ID: 1 Details: The cysteine to serine mutations are in the protein E6 portion of the chimeric construct.,The cysteine to serine mutations are in the protein E6 portion of the chimeric construct. Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Human papillomavirus type 16 |
Molecular weight | Theoretical: 61.190582 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MKIEEGKLVI WINGDKGYNG LAEVGKKFEK DTGIKVTVEH PDKLEEKFPQ VAATGDGPDI IFWAHDRFGG YAQSGLLAEI TPDKAFQDK LYPFTWDAVR YNGKLIAYPI AVEALSLIYN KDLLPNPPKT WEEIPALDKE LKAKGKSALM FNLQEPYFTW P LIAADGGY ...String: MKIEEGKLVI WINGDKGYNG LAEVGKKFEK DTGIKVTVEH PDKLEEKFPQ VAATGDGPDI IFWAHDRFGG YAQSGLLAEI TPDKAFQDK LYPFTWDAVR YNGKLIAYPI AVEALSLIYN KDLLPNPPKT WEEIPALDKE LKAKGKSALM FNLQEPYFTW P LIAADGGY AFKYENGKYD IKDVGVDNAG AKAGLTFLVD LIKNKHMNAD TDYSIAEAAF NKGETAMTIN GPWAWSNIDT SK VNYGVTV LPTFKGQPSK PFVGVLSAGI NAASPNKELA KEFLENYLLT DEGLEAVNKD KPLGAVALKS YEEELAKDPR IAA TMENAQ KGEIMPNIPQ MSAFWYAVRT AVINAASGRQ TVDEALKDAQ TRITKGGGGS ENLYFQGMHQ KRTAMFQDPQ ERPR KLPQL CTELQTTIHD IILECVYCKQ QLLRREVYDF AFRDLCIVYR DGNPYAVCDK CLKFYSKISE YRHYSYSLYG TTLEQ QYNK PLSDLLIRCI NCQKPLSPEE KQRHLDKKQR FHNIRGRWTG RCMSCSRSSR TRRETQL UniProtKB: Maltose/maltodextrin-binding periplasmic protein, Protein E6 |
-Macromolecule #2: Cellular tumor antigen p53
Macromolecule | Name: Cellular tumor antigen p53 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 24.64393 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: GSSSVPSQKT YQGSYGFRLG FLHSGTAKSV TCTYSPALNK MFCQLAKTCP VQLWVDSTPP PGTRVRAMAI YKQSQHMTEV VRRCPHHER CSDSDGLAPP QHLIRVEGNL RVEYLDDRNT FRHSVVVPYE PPEVGSDCTT IHYNYMCNSS CMGGMNRRPI L TIITLEDS ...String: GSSSVPSQKT YQGSYGFRLG FLHSGTAKSV TCTYSPALNK MFCQLAKTCP VQLWVDSTPP PGTRVRAMAI YKQSQHMTEV VRRCPHHER CSDSDGLAPP QHLIRVEGNL RVEYLDDRNT FRHSVVVPYE PPEVGSDCTT IHYNYMCNSS CMGGMNRRPI L TIITLEDS SGNLLGRNSF EVRVCACPGR DRRTEEENLR KKGEPHHELP PGSTKRALPN NT UniProtKB: Cellular tumor antigen p53 |
-Macromolecule #3: Ubiquitin-protein ligase E3A
Macromolecule | Name: Ubiquitin-protein ligase E3A / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: HECT-type E3 ubiquitin transferase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 104.305281 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MEKLHQCYWK SGEPQSDDIE ASRMKRAAAK HLIERYYHQL TEGCGNEACT NEFCASCPTF LRMDNNAAAI KALELYKINA KLCDPHPSK KGASSAYLEN SKGAPNNSCS EIKMNKKGAR IDFKDVTYLT EEKVYEILEL CREREDYSPL IRVIGRVFSS A EALVQSFR ...String: MEKLHQCYWK SGEPQSDDIE ASRMKRAAAK HLIERYYHQL TEGCGNEACT NEFCASCPTF LRMDNNAAAI KALELYKINA KLCDPHPSK KGASSAYLEN SKGAPNNSCS EIKMNKKGAR IDFKDVTYLT EEKVYEILEL CREREDYSPL IRVIGRVFSS A EALVQSFR KVKQHTKEEL KSLQAKDEDK DEDEKEKAAC SAAAMEEDSE ASSSRIGDSS QGDNNLQKLG PDDVSVDIDA IR RVYTRLL SNEKIETAFL NALVYLSPNV ECDLTYHNVY SRDPNYLNLF IIVMENRNLH SPEYLEMALP LFCKAMSKLP LAA QGKLIR LWSKYNADQI RRMMETFQQL ITYKVISNEF NSRNLVNDDD AIVAASKCLK MVYYANVVGG EVDTNHNEED DEEP IPESS ELTLQELLGE ERRNKKGPRV DPLETELGVK TLDCRKPLIP FEEFINEPLN EVLEMDKDYT FFKVETENKF SFMTC PFIL NAVTKNLGLY YDNRIRMYSE RRITVLYSLV QGQQLNPYLR LKVRRDHIID DALVRLEMIA MENPADLKKQ LYVEFE GEQ GVDEGGVSKE FFQLVVEEIF NPDIGMFTYD ESTKLFWFNP SSFETEGQFT LIGIVLGLAI YNNCILDVHF PMVVYRK LM GKKGTFRDLG DSHPVLYQSL KDLLEYEGNV EDDMMITFQI SQTDLFGNPM MYDLKENGDK IPITNENRKE FVNLYSDY I LNKSVEKQFK AFRRGFHMVT NESPLKYLFR PEEIELLICG SRNLDFQALE ETTEYDGGYT RDSVLIREFW EIVHSFTDE QKRLFLQFTT GTDRAPVGGL GKLKMIIAKN GPDTERLPTS HTCFNVLLLP EYSSKEKLKE RLLKAITYAK GFGMLENLYF QGHHHHHHG LNDIFEAQKI EWHE UniProtKB: Ubiquitin-protein ligase E3A |
-Macromolecule #4: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 4 / Number of copies: 3 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 2.15 mg/mL | |||||||||||||||
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Buffer | pH: 7 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Support film - Material: CARBON / Support film - topology: HOLEY / Support film - Film thickness: 30 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. | |||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 80.5 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |