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Open data
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Basic information
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Title | CAND1 b-hairpin++-SCF-SKP2 CAND1 rolling SCF engaged | |||||||||
![]() | deepEMhancer | |||||||||
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![]() | cullin-RING E3 ubiquitin ligase / SCF / CAND1 / Assembly factor / LIGASE | |||||||||
Function / homology | ![]() SCF complex assembly / positive regulation of protein polyubiquitination / Parkin-FBXW7-Cul1 ubiquitin ligase complex / F-box domain binding / PcG protein complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / negative regulation of catalytic activity / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / NEDD8 transferase activity ...SCF complex assembly / positive regulation of protein polyubiquitination / Parkin-FBXW7-Cul1 ubiquitin ligase complex / F-box domain binding / PcG protein complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / negative regulation of catalytic activity / cullin-RING-type E3 NEDD8 transferase / cellular response to chemical stress / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / positive regulation of ubiquitin protein ligase activity / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / maintenance of protein location in nucleus / positive regulation of protein autoubiquitination / protein neddylation / NEDD8 ligase activity / Cul5-RING ubiquitin ligase complex / negative regulation of response to oxidative stress / positive regulation of intracellular estrogen receptor signaling pathway / ubiquitin-ubiquitin ligase activity / Cul4A-RING E3 ubiquitin ligase complex / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / Cul4B-RING E3 ubiquitin ligase complex / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Prolactin receptor signaling / protein monoubiquitination / cullin family protein binding / protein K63-linked ubiquitination / positive regulation of double-strand break repair via homologous recombination / ubiquitin-like ligase-substrate adaptor activity / positive regulation of RNA polymerase II transcription preinitiation complex assembly / protein K48-linked ubiquitination / Nuclear events stimulated by ALK signaling in cancer / ubiquitin ligase complex / positive regulation of TORC1 signaling / T cell activation / TBP-class protein binding / regulation of cellular response to insulin stimulus / Regulation of BACH1 activity / intrinsic apoptotic signaling pathway / MAP3K8 (TPL2)-dependent MAPK1/3 activation / post-translational protein modification / molecular function activator activity / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / Vpu mediated degradation of CD4 / Degradation of DVL / Dectin-1 mediated noncanonical NF-kB signaling / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / animal organ morphogenesis / Activation of NF-kappaB in B cells / Negative regulation of NOTCH4 signaling / cellular response to amino acid stimulus / Iron uptake and transport / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / DNA Damage Recognition in GG-NER / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / RING-type E3 ubiquitin transferase / negative regulation of canonical Wnt signaling pathway / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Dual Incision in GG-NER / Evasion by RSV of host interferon responses / NOTCH1 Intracellular Domain Regulates Transcription / CLEC7A (Dectin-1) signaling / SCF(Skp2)-mediated degradation of p27/p21 / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Regulation of expression of SLITs and ROBOs / Formation of Incision Complex in GG-NER / FCERI mediated NF-kB activation / beta-catenin binding / Dual incision in TC-NER / Interleukin-1 signaling / Orc1 removal from chromatin / Gap-filling DNA repair synthesis and ligation in TC-NER / Regulation of RAS by GAPs / protein polyubiquitination / positive regulation of protein catabolic process / G1/S transition of mitotic cell cycle / Regulation of RUNX2 expression and activity / Cyclin D associated events in G1 / G2/M transition of mitotic cell cycle / cellular response to UV / Regulation of PLK1 Activity at G2/M Transition Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
![]() | Baek K / Schulman BA | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Systemwide disassembly and assembly of SCF ubiquitin ligase complexes. Authors: Kheewoong Baek / Daniel C Scott / Lukas T Henneberg / Moeko T King / Matthias Mann / Brenda A Schulman / ![]() ![]() Abstract: Cells respond to environmental cues by remodeling their inventories of multiprotein complexes. Cellular repertoires of SCF (SKP1-CUL1-F box protein) ubiquitin ligase complexes, which mediate much ...Cells respond to environmental cues by remodeling their inventories of multiprotein complexes. Cellular repertoires of SCF (SKP1-CUL1-F box protein) ubiquitin ligase complexes, which mediate much protein degradation, require CAND1 to distribute the limiting CUL1 subunit across the family of ∼70 different F box proteins. Yet, how a single factor coordinately assembles numerous distinct multiprotein complexes remains unknown. We obtained cryo-EM structures of CAND1-bound SCF complexes in multiple states and correlated mutational effects on structures, biochemistry, and cellular assays. The data suggest that CAND1 clasps idling catalytic domains of an inactive SCF, rolls around, and allosterically rocks and destabilizes the SCF. New SCF production proceeds in reverse, through SKP1-F box allosterically destabilizing CAND1. The CAND1-SCF conformational ensemble recycles CUL1 from inactive complexes, fueling mixing and matching of SCF parts for E3 activation in response to substrate availability. Our data reveal biogenesis of a predominant family of E3 ligases, and the molecular basis for systemwide multiprotein complex assembly. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 111.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 24.5 KB 24.5 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.4 KB | Display | ![]() |
Images | ![]() | 136.8 KB | ||
Masks | ![]() | 125 MB | ![]() | |
Filedesc metadata | ![]() | 7.5 KB | ||
Others | ![]() ![]() ![]() ![]() | 98 MB 13.6 MB 98.5 MB 98.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8cdjMC ![]() 7z8rC ![]() 7z8tC ![]() 7z8vC ![]() 7zbwC ![]() 7zbzC ![]() 8cdkC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | deepEMhancer | ||||||||||||||||||||
Voxel size | X=Y=Z: 0.8512 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Additional map: 3d refinement
File | emd_16575_additional_1.map | ||||||||||||
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Annotation | 3d refinement | ||||||||||||
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-Additional map: relion postprocess
File | emd_16575_additional_2.map | ||||||||||||
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Annotation | relion postprocess | ||||||||||||
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-Half map: halfmap1
File | emd_16575_half_map_1.map | ||||||||||||
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Annotation | halfmap1 | ||||||||||||
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-Half map: halfmap2
File | emd_16575_half_map_2.map | ||||||||||||
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Annotation | halfmap2 | ||||||||||||
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Density Histograms |
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Sample components
-Entire : CAND1 b-hairpin++-SCF-SKP2 CAND1 rolling SCF engaged
Entire | Name: CAND1 b-hairpin++-SCF-SKP2 CAND1 rolling SCF engaged |
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Components |
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-Supramolecule #1: CAND1 b-hairpin++-SCF-SKP2 CAND1 rolling SCF engaged
Supramolecule | Name: CAND1 b-hairpin++-SCF-SKP2 CAND1 rolling SCF engaged / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Cullin-1
Macromolecule | Name: Cullin-1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 89.800367 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MSSTRSQNPH GLKQIGLDQI WDDLRAGIQQ VYTRQSMAKS RYMELYTHVY NYCTSVHQSN QARGAGVPPS KSKKGQTPGG AQFVGLELY KRLKEFLKNY LTNLLKDGED LMDESVLKFY TQQWEDYRFS SKVLNGICAY LNRHWVRREC DEGRKGIYEI Y SLALVTWR ...String: MSSTRSQNPH GLKQIGLDQI WDDLRAGIQQ VYTRQSMAKS RYMELYTHVY NYCTSVHQSN QARGAGVPPS KSKKGQTPGG AQFVGLELY KRLKEFLKNY LTNLLKDGED LMDESVLKFY TQQWEDYRFS SKVLNGICAY LNRHWVRREC DEGRKGIYEI Y SLALVTWR DCLFRPLNKQ VTNAVLKLIE KERNGETINT RLISGVVQSY VELGLNEDDA FAKGPTLTVY KESFESQFLA DT ERFYTRE STEFLQQNPV TEYMKKAEAR LLEEQRRVQV YLHESTQDEL ARKCEQVLIE KHLEIFHTEF QNLLDADKNE DLG RMYNLV SRIQDGLGEL KKLLETHIHN QGLAAIEKCG EAALNDPKMY VQTVLDVHKK YNALVMSAFN NDAGFVAALD KACG RFINN NAVTKMAQSS SKSPELLARY CDSLLKKSSK NPEEAELEDT LNQVMVVFKY IEDKDVFQKF YAKMLAKRLV HQNSA SDDA EASMISKLKQ ACGFEYTSKL QRMFQDIGVS KDLNEQFKKH LTNSEPLDLD FSIQVLSSGS WPFQQSCTFA LPSELE RSY QRFTAFYASR HSGRKLTWLY QLSKGELVTN CFKNRYTLQA STFQMAILLQ YNTEDAYTVQ QLTDSTQIKM DILAQVL QI LLKSKLLVLE DENANVDEVE LKPDTLIKLY LGYKNKKLRV NINVPMKTEQ KQEQETTHKN IEEDRKLLIQ AAIVRIMK M RKVLKHQQLL GEVLTQLSSR FKPRVPVIKK CIDILIEKEY LERVDGEKDT YSYLA UniProtKB: Cullin-1 |
-Macromolecule #2: E3 ubiquitin-protein ligase RBX1, N-terminally processed
Macromolecule | Name: E3 ubiquitin-protein ligase RBX1, N-terminally processed type: protein_or_peptide / ID: 2 / Details: RING domain not visible / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 12.089677 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: GSMDVDTPSG TNSGAGKKRF EVKKWNAVAL WAWDIVVDNC AICRNHIMDL CIECQANQAS ATSEECTVAW GVCNHAFHFH CISRWLKTR QVCPLDNREW EFQKYGH UniProtKB: E3 ubiquitin-protein ligase RBX1 |
-Macromolecule #3: Cullin-associated NEDD8-dissociated protein 1
Macromolecule | Name: Cullin-associated NEDD8-dissociated protein 1 / type: protein_or_peptide / ID: 3 / Details: CAND1 b-hairpin++ (with M1068W P1070Q mutant) / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 137.472297 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GSPEFPGRMA SASYHISNLL EKMTSSDKDF RFMATNDLMT ELQKDSIKLD DDSERKVVKM ILKLLEDKNG EVQNLAVKCL GPLVSKVKE YQVETIVDTL CTNMLSDKEQ LRDISSIGLK TVIGELPPAS SGSALAANVC KKITGRLTSA IAKQEDVSVQ L EALDIMAD ...String: GSPEFPGRMA SASYHISNLL EKMTSSDKDF RFMATNDLMT ELQKDSIKLD DDSERKVVKM ILKLLEDKNG EVQNLAVKCL GPLVSKVKE YQVETIVDTL CTNMLSDKEQ LRDISSIGLK TVIGELPPAS SGSALAANVC KKITGRLTSA IAKQEDVSVQ L EALDIMAD MLSRQGGLLV NFHPSILTCL LPQLTSPRLA VRKRTIIALG HLVMSCGNIV FVDLIEHLLS ELSKNDSMST TR TYIQCIA AISRQAGHRI GEYLEKIIPL VVKFCNVDDD ELREYCIQAF ESFVRRCPKE VYPHVSTIIN ICLKYLTYDP NYN YDDEDE DENAMDADGG DDDDQGSDDE YSDDDDMSWK VRRAAAKCLD AVVSTRHEML PEFYKTVSPA LISRFKEREE NVKA DVFHA YLSLLKQTRP VQSWLCDPDA MEQGETPLTM LQSQVPNIVK ALHKQMKEKS VKTRQCCFNM LTELVNVLPG ALTQH IPVL VPGIIFSLND KSSSSNLKID ALSCLYVILC NHSPQVFHPH VQALVPPVVA CVGDPFYKIT SEALLVTQQL VKVIRP LDQ PSSFDATPYI KDLFTCTIKR LKAADIDQEV KERAISCMGQ IICNLGDNLG SDLPNTLQIF LERLKNEITR LTTVKAL TL IAGSPLKIDL RPVLGEGVPI LASFLRKNQR ALKLGTLSAL DILIKNYSDS LTAAMIDAVL DELPPLISES DMHVSQMA I SFLTTLAKVY PSSLSKISGS ILNELIGLVR SPLLQGGALS AMLDFFQALV VTGTNNLGYM DLLRMLTGPV YSQSTALTH KQSYYSIAKC VAALTRACPK EGPAVVGQFI QDVKNSRSTD SIRLLALLSL GEVGHHIDLS GQLELKSVIL EAFSSPSEEV KSAASYALG SISVGNLPEY LPFVLQEITS QPKRQYLLLH SLKEIISSAS VVGLKPYVEN IWALLLKHCE CAEEGTRNVV V ECLGKLTL IDPETLLPRL KGYLISGSSY ARSSVVTAVK FTISDHPQPI DPLLKNCIGD FLKTLEDPDL NVRRVALVTF NS AAHNKPS LIRDLLDTVL PHLYNETKVR KELIREVEWG QFKHTVDDGL DIRKAAFECM YTLLDSCLDR LDIFEFLNHV EDG LKDHYD IKMLTFLMLV RLSTLCPSAV LQRLDRLVEP LRATCTTKVK ANSVKQEFEK QDELKRSAMR AVAALLTIPE AEKS PLMSE FQSQISSNPE LAAIFESIQK DSSSTNLESM DTS UniProtKB: Cullin-associated NEDD8-dissociated protein 1 |
-Macromolecule #4: S-phase kinase-associated protein 2
Macromolecule | Name: S-phase kinase-associated protein 2 / type: protein_or_peptide / ID: 4 Details: SKP2 N-terminal region not visible in EM density. The LRR region of SKP2 was wholesale docked from previous structure with all sidechains removed. Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 47.96191 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GSMHRKHLQE IPDLSSNVAT SFTWGWDSSK TSELLSGMGV SALEKEEPDS ENIPQELLSN LGHPESPPRK RLKSKGSDKD FVIVRRPKL NRENFPGVSW DSLPDELLLG IFSCLCLPEL LKVSGVCKRW YRLASDESLW QTLDLTGKNL HPDVTGRLLS Q GVIAFRCP ...String: GSMHRKHLQE IPDLSSNVAT SFTWGWDSSK TSELLSGMGV SALEKEEPDS ENIPQELLSN LGHPESPPRK RLKSKGSDKD FVIVRRPKL NRENFPGVSW DSLPDELLLG IFSCLCLPEL LKVSGVCKRW YRLASDESLW QTLDLTGKNL HPDVTGRLLS Q GVIAFRCP RSFMDQPLAE HFSPFRVQHM DLSNSVIEVS TLHGILSQCS KLQNLSLEGL RLSDPIVNTL AKNSNLVRLN LS GCSGFSE FALQTLLSSC SRLDELNLSW CFDFTEKHVQ VAVAHVSETI TQLNLSGYRK NLQKSDLSTL VRRCPNLVHL DLS DSVMLK NDCFQEFFQL NYLQHLSLSR CYDIIPETLL ELGEIPTLKT LQVFGIVPDG TLQLLKEALP HLQINCSHFT TIAR PTIGN KKNQEIWGIK CRLTLQKPSC L UniProtKB: S-phase kinase-associated protein 2 |
-Macromolecule #5: S-phase kinase-associated protein 1
Macromolecule | Name: S-phase kinase-associated protein 1 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 18.679965 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MPSIKLQSSD GEIFEVDVEI AKQSVTIKTM LEDLGMDDEG DDDPVPLPNV NAAILKKVIQ WCTHHKDDPP PPEDDENKEK RTDDIPVWD QEFLKVDQGT LFELILAANY LDIKGLLDVT CKTVANMIKG KTPEEIRKTF NIKNDFTEEE EAQVRKENQW C EEK UniProtKB: S-phase kinase-associated protein 1 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 68.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.5 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |