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- PDB-5khr: Model of human Anaphase-promoting complex/Cyclosome complex (APC1... -
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Basic information
Entry | Database: PDB / ID: 5khr | ||||||
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Title | Model of human Anaphase-promoting complex/Cyclosome complex (APC15 deletion mutant) in complex with the E2 UBE2C/UBCH10 poised for ubiquitin ligation to substrate (APC/C-CDC20-substrate-UBE2C) | ||||||
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![]() | CELL CYCLE / ubiquitination / protein complex / mitosis | ||||||
Function / homology | ![]() protein localization to septin ring / mitotic morphogenesis checkpoint signaling / metaphase/anaphase transition of cell cycle / metaphase/anaphase transition of meiosis I / cellular bud neck septin ring / Inhibition of the proteolytic activity of APC/C required for the onset of anaphase by mitotic spindle checkpoint components / mitotic checkpoint complex / positive regulation of anaphase-promoting complex-dependent catabolic process / positive regulation of exit from mitosis / free ubiquitin chain polymerization ...protein localization to septin ring / mitotic morphogenesis checkpoint signaling / metaphase/anaphase transition of cell cycle / metaphase/anaphase transition of meiosis I / cellular bud neck septin ring / Inhibition of the proteolytic activity of APC/C required for the onset of anaphase by mitotic spindle checkpoint components / mitotic checkpoint complex / positive regulation of anaphase-promoting complex-dependent catabolic process / positive regulation of exit from mitosis / free ubiquitin chain polymerization / regulation of meiotic nuclear division / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / positive regulation of synapse maturation / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / Phosphorylation of Emi1 / anaphase-promoting complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of meiotic cell cycle / metaphase/anaphase transition of mitotic cell cycle / anaphase-promoting complex-dependent catabolic process / (E3-independent) E2 ubiquitin-conjugating enzyme / positive regulation of synaptic plasticity / regulation of exit from mitosis / anaphase-promoting complex binding / Phosphorylation of the APC/C / cellular bud neck / positive regulation of mitotic metaphase/anaphase transition / positive regulation of ubiquitin protein ligase activity / ubiquitin ligase activator activity / Regulation of APC/C activators between G1/S and early anaphase / protein K11-linked ubiquitination / enzyme-substrate adaptor activity / positive regulation of dendrite morphogenesis / regulation of mitotic metaphase/anaphase transition / exit from mitosis / ubiquitin-ubiquitin ligase activity / mitotic sister chromatid cohesion / mitotic metaphase chromosome alignment / E2 ubiquitin-conjugating enzyme / mitotic spindle assembly checkpoint signaling / ubiquitin-like protein ligase binding / regulation of mitotic cell cycle / cullin family protein binding / ubiquitin conjugating enzyme activity / Transcriptional Regulation by VENTX / ubiquitin-like ligase-substrate adaptor activity / mitotic spindle assembly / positive regulation of axon extension / protein K48-linked ubiquitination / heterochromatin / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / ubiquitin ligase complex / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / APC/C:Cdc20 mediated degradation of Cyclin B / APC-Cdc20 mediated degradation of Nek2A / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / nuclear periphery / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / SCF-beta-TrCP mediated degradation of Emi1 / Assembly of the pre-replicative complex / RHO GTPases Activate Formins / CDK-mediated phosphorylation and removal of Cdc6 / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / protein catabolic process / brain development / mitotic spindle / kinetochore / G2/M transition of mitotic cell cycle / spindle pole / spindle / protein polyubiquitination / Separation of Sister Chromatids / ubiquitin-protein transferase activity / microtubule cytoskeleton / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / Senescence-Associated Secretory Phenotype (SASP) / mitotic cell cycle / nervous system development / protein phosphatase binding / ubiquitin-dependent protein catabolic process / cell differentiation / molecular adaptor activity / regulation of cell cycle / non-specific serine/threonine protein kinase / protein kinase activity / Ub-specific processing proteases / protein ubiquitination / cell division / negative regulation of gene expression / protein serine kinase activity / protein serine/threonine kinase activity / centrosome / ubiquitin protein ligase binding / nucleolus Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.1 Å | ||||||
![]() | VanderLinden, R. / Yamaguchi, M. / Dube, P. / Haselbach, D. / Stark, H. / Schulman, B.A. | ||||||
![]() | ![]() Title: Cryo-EM of Mitotic Checkpoint Complex-Bound APC/C Reveals Reciprocal and Conformational Regulation of Ubiquitin Ligation. Authors: Masaya Yamaguchi / Ryan VanderLinden / Florian Weissmann / Renping Qiao / Prakash Dube / Nicholas G Brown / David Haselbach / Wei Zhang / Sachdev S Sidhu / Jan-Michael Peters / Holger Stark ...Authors: Masaya Yamaguchi / Ryan VanderLinden / Florian Weissmann / Renping Qiao / Prakash Dube / Nicholas G Brown / David Haselbach / Wei Zhang / Sachdev S Sidhu / Jan-Michael Peters / Holger Stark / Brenda A Schulman / ![]() ![]() ![]() ![]() Abstract: The mitotic checkpoint complex (MCC) coordinates proper chromosome biorientation on the spindle with ubiquitination activities of CDC20-activated anaphase-promoting complex/cyclosome (APC/C(CDC20)). ...The mitotic checkpoint complex (MCC) coordinates proper chromosome biorientation on the spindle with ubiquitination activities of CDC20-activated anaphase-promoting complex/cyclosome (APC/C(CDC20)). APC/C(CDC20) and two E2s, UBE2C and UBE2S, catalyze ubiquitination through distinct architectures for linking ubiquitin (UB) to substrates and elongating polyUB chains, respectively. MCC, which contains a second molecule of CDC20, blocks APC/C(CDC20)-UBE2C-dependent ubiquitination of Securin and Cyclins, while differentially determining or inhibiting CDC20 ubiquitination to regulate spindle surveillance, checkpoint activation, and checkpoint termination. Here electron microscopy reveals conformational variation of APC/C(CDC20)-MCC underlying this multifaceted regulation. MCC binds APC/C-bound CDC20 to inhibit substrate access. However, rotation about the CDC20-MCC assembly and conformational variability of APC/C modulate UBE2C-catalyzed ubiquitination of MCC's CDC20 molecule. Access of UBE2C is limiting for subsequent polyubiquitination by UBE2S. We propose that conformational dynamics of APC/C(CDC20)-MCC modulate E2 activation and determine distinctive ubiquitination activities as part of a response mechanism ensuring accurate sister chromatid segregation. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 354.6 KB | Display | ![]() |
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PDB format | ![]() | 196.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 4025MC ![]() 4021C ![]() 4022C ![]() 4023C ![]() 4024C ![]() 4026C ![]() 4027C ![]() 4028C ![]() 5khuC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Anaphase-promoting complex subunit ... , 10 types, 12 molecules ABEGWILMNOXY
#1: Protein | Mass: 216725.469 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||||||||||
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#2: Protein | Mass: 9854.647 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||||||||||
#4: Protein | Mass: 11677.995 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||||||||||
#6: Protein | Mass: 9793.999 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #7: Protein | | Mass: 93207.328 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Contains the remnant of a C-terminal linker and HRV14 3C protease site. Source: (gene. exp.) ![]() ![]() #9: Protein | | Mass: 21282.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #10: Protein | | Mass: 8528.309 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #11: Protein | | Mass: 94023.055 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #12: Protein | | Mass: 85249.812 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #16: Protein | Mass: 63204.020 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Cell division cycle protein ... , 4 types, 7 molecules CPFHJKR
#3: Protein | Mass: 68921.031 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #5: Protein | Mass: 91973.125 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #8: Protein | Mass: 71747.516 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #14: Protein | | Mass: 54796.508 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Protein / Protein/peptide , 2 types, 2 molecules QS
#13: Protein | Mass: 20748.438 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Contains the remnant of a C-terminal linker and HRV14 3C protease site. Source: (gene. exp.) ![]() ![]() References: UniProt: O00762, E2 ubiquitin-conjugating enzyme, (E3-independent) E2 ubiquitin-conjugating enzyme |
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#15: Protein/peptide | Mass: 3783.135 Da / Num. of mol.: 1 / Source method: obtained synthetically Details: Contains azidohomoalanine in place of K788 and is cross-linked to UBE2C and UB. Source: (synth.) ![]() ![]() |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Multi-protein complex of APC/C with coactivator CDC20 and cross-linked UBE2C-UB-Substrate complex mimicking ubiquitination Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES |
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Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 40 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 6.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 222697 / Symmetry type: POINT |