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Yorodumi- EMDB-25568: Structure of the yeast clamp loader (Replication Factor C RFC) bo... -
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-Basic information
Entry | Database: EMDB / ID: EMD-25568 | |||||||||||||||
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Title | Structure of the yeast clamp loader (Replication Factor C RFC) bound to the sliding clamp (Proliferating Cell Nuclear Antigen PCNA) in an autoinhibited conformation | |||||||||||||||
Map data | Density modified map (with resolve_cryo_em) | |||||||||||||||
Sample |
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Keywords | sliding clamp / DNA replication / AAA+ / clamp loader / REPLICATION | |||||||||||||||
Function / homology | Function and homology information DNA clamp unloading / Rad17 RFC-like complex / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Gap-filling DNA repair synthesis and ligation in GG-NER / meiotic mismatch repair / Processive synthesis on the lagging strand / Elg1 RFC-like complex / Removal of the Flap Intermediate / Ctf18 RFC-like complex / DNA replication factor C complex ...DNA clamp unloading / Rad17 RFC-like complex / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Gap-filling DNA repair synthesis and ligation in GG-NER / meiotic mismatch repair / Processive synthesis on the lagging strand / Elg1 RFC-like complex / Removal of the Flap Intermediate / Ctf18 RFC-like complex / DNA replication factor C complex / E3 ubiquitin ligases ubiquitinate target proteins / Polymerase switching / positive regulation of DNA metabolic process / SUMOylation of DNA replication proteins / DNA clamp loader activity / maintenance of DNA trinucleotide repeats / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / PCNA complex / Translesion Synthesis by POLH / DNA replication checkpoint signaling / establishment of mitotic sister chromatid cohesion / Activation of ATR in response to replication stress / Termination of translesion DNA synthesis / lagging strand elongation / postreplication repair / sister chromatid cohesion / silent mating-type cassette heterochromatin formation / mitotic sister chromatid cohesion / error-free translesion synthesis / leading strand elongation / DNA polymerase processivity factor activity / Gap-filling DNA repair synthesis and ligation in TC-NER / Dual incision in TC-NER / subtelomeric heterochromatin formation / mismatch repair / translesion synthesis / positive regulation of DNA repair / positive regulation of DNA replication / DNA damage checkpoint signaling / replication fork / nucleotide-excision repair / DNA-templated DNA replication / mitotic cell cycle / chromosome, telomeric region / cell division / DNA repair / ATP hydrolysis activity / DNA binding / ATP binding / identical protein binding / nucleus / cytosol Similarity search - Function | |||||||||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||||||||
Authors | Gaubitz C / Demo G / Stone NP / Hayes JA / Liu X / Pajak J / Kelch BA | |||||||||||||||
Funding support | Czech Republic, 4 items
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Citation | Journal: Elife / Year: 2022 Title: Cryo-EM structures reveal high-resolution mechanism of a DNA polymerase sliding clamp loader. Authors: Christl Gaubitz / Xingchen Liu / Joshua Pajak / Nicholas P Stone / Janelle A Hayes / Gabriel Demo / Brian A Kelch / Abstract: Sliding clamps are ring-shaped protein complexes that are integral to the DNA replication machinery of all life. Sliding clamps are opened and installed onto DNA by clamp loader AAA+ ATPase complexes. ...Sliding clamps are ring-shaped protein complexes that are integral to the DNA replication machinery of all life. Sliding clamps are opened and installed onto DNA by clamp loader AAA+ ATPase complexes. However, how a clamp loader opens and closes the sliding clamp around DNA is still unknown. Here, we describe structures of the clamp loader Replication Factor C (RFC) bound to its cognate sliding clamp Proliferating Cell Nuclear Antigen (PCNA) en route to successful loading. RFC first binds to PCNA in a dynamic, closed conformation that blocks both ATPase activity and DNA binding. RFC then opens the PCNA ring through a large-scale 'crab-claw' expansion of both RFC and PCNA that explains how RFC prefers initial binding of PCNA over DNA. Next, the open RFC:PCNA complex binds DNA and interrogates the primer-template junction using a surprising base-flipping mechanism. Our structures indicate that initial PCNA opening and subsequent closure around DNA do not require ATP hydrolysis, but are driven by binding energy. ATP hydrolysis, which is necessary for RFC release, is triggered by interactions with both PCNA and DNA, explaining RFC's switch-like ATPase activity. Our work reveals how a AAA+ machine undergoes dramatic conformational changes for achieving binding preference and substrate remodeling. | |||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_25568.map.gz | 7.6 MB | EMDB map data format | |
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Header (meta data) | emd-25568-v30.xml emd-25568.xml | 24.2 KB 24.2 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_25568_fsc.xml | 8.6 KB | Display | FSC data file |
Images | emd_25568.png | 48.7 KB | ||
Filedesc metadata | emd-25568.cif.gz | 6.7 KB | ||
Others | emd_25568_additional_1.map.gz emd_25568_half_map_1.map.gz emd_25568_half_map_2.map.gz | 40.7 MB 40.7 MB 40.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-25568 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-25568 | HTTPS FTP |
-Validation report
Summary document | emd_25568_validation.pdf.gz | 824.9 KB | Display | EMDB validaton report |
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Full document | emd_25568_full_validation.pdf.gz | 824.5 KB | Display | |
Data in XML | emd_25568_validation.xml.gz | 13.2 KB | Display | |
Data in CIF | emd_25568_validation.cif.gz | 18.2 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25568 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25568 | HTTPS FTP |
-Related structure data
Related structure data | 7thjMC 7thvC 7ti8C 7tibC 7ticC 7tidC 7tkuC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_25568.map.gz / Format: CCP4 / Size: 8.2 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Density modified map (with resolve_cryo_em) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.059 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: unsharpened map
File | emd_25568_additional_1.map | ||||||||||||
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Annotation | unsharpened map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_25568_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_25568_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Replication Factor C (RFC), the eukaryotic clamp loader
Entire | Name: Replication Factor C (RFC), the eukaryotic clamp loader |
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Components |
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-Supramolecule #1: Replication Factor C (RFC), the eukaryotic clamp loader
Supramolecule | Name: Replication Factor C (RFC), the eukaryotic clamp loader type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6 |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Molecular weight | Theoretical: 336 KDa |
-Macromolecule #1: Rfc1
Macromolecule | Name: Rfc1 / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MVNISDFFGK NKKSVRSSTS RPTRQVGSSK PEVIDLDTES DQESTNKTPK KMPVSNVIDV SETPEGEKKL PLPAKRKASS PTVKPASSKK TKPSSKSSDS ASNITAQDVL DKIPSLDLSN VHVKENAKFD FKSANSNADP DEIVSEIGSF PEGKPNCLLG LTIVFTGVLP ...String: MVNISDFFGK NKKSVRSSTS RPTRQVGSSK PEVIDLDTES DQESTNKTPK KMPVSNVIDV SETPEGEKKL PLPAKRKASS PTVKPASSKK TKPSSKSSDS ASNITAQDVL DKIPSLDLSN VHVKENAKFD FKSANSNADP DEIVSEIGSF PEGKPNCLLG LTIVFTGVLP TLERGASEAL AKRYGARVTK SISSKTSVVV LGDEAGPKKL EKIKQLKIKA IDEEGFKQLI AGMPAEGGDG EAAEKARRKL EEQHNIATKE AELLVKKEEE RSKKLAATRV SGGHLERDNV VREEDKLWTV KYAPTNLQQV CGNKGSVMKL KNWLANWENS KKNSFKHAGK DGSGVFRAAM LYGPPGIGKT TAAHLVAQEL GYDILEQNAS DVRSKTLLNA GVKNALDNMS VVGYFKHNEE AQNLNGKHFV IIMDEVDGMS GGDRGGVGQL AQFCRKTSTP LILICNERNL PKMRPFDRVC LDIQFRRPDA NSIKSRLMTI AIREKFKLDP NVIDRLIQTT RGDIRQVINL LSTISTTTKT INHENINEIS KAWEKNIALK PFDIAHKMLD GQIYSDIGSR NFTLNDKIAL YFDDFDFTPL MIQENYLSTR PSVLKPGQSH LEAVAEAANC ISLGDIVEKK IRSSEQLWSL LPLHAVLSSV YPASKVAGHM AGRINFTAWL GQNSKSAKYY RLLQEIHYHT RLGTSTDKIG LRLDYLPTFR KRLLDPFLKQ GADAISSVIE VMDDYYLTKE DWDSIMEFFV GPDVTTAIIK KIPATVKSGF TRKYNSMTHP VAIYRTGSTI GGGGVGTSTS TPDFEDVVDA DDNPVPADDE ETQDSSTDLK KDKLIKQKAK PTKRKTATSK PGGSKKRKTK A UniProtKB: Replication factor C subunit 1 |
-Macromolecule #2: Rfc2
Macromolecule | Name: Rfc2 / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Sequence | String: MFEGFGPNKK RKISKLAAEQ SLAQQPWVEK YRPKNLDEVT AQDHAVTVLK KTLKSANLPH MLFYGPPGTG KTSTILALTK ELYGPDLMKS RILELNASDE RGISIVREKV KNFARLTVSK PSKHDLENYP CPPYKIIILD EADSMTADAQ SALRRTMETY SGVTRFCLIC ...String: MFEGFGPNKK RKISKLAAEQ SLAQQPWVEK YRPKNLDEVT AQDHAVTVLK KTLKSANLPH MLFYGPPGTG KTSTILALTK ELYGPDLMKS RILELNASDE RGISIVREKV KNFARLTVSK PSKHDLENYP CPPYKIIILD EADSMTADAQ SALRRTMETY SGVTRFCLIC NYVTRIIDPL ASRCSKFRFK ALDASNAIDR LRFISEQENV KCDDGVLERI LDISAGDLRR GITLLQSASK GAQYLGDGKN ITSTQVEELA GVVPHDILIE IVEKVKSGDF DEIKKYVNTF MKSGWSAASV VNQLHEYYIT NDNFDTNFKN QISWLLFTTD SRLNNGTNEH IQLLNLLVKI SQL UniProtKB: Replication factor C subunit 2 |
-Macromolecule #4: Rfc4
Macromolecule | Name: Rfc4 / type: protein_or_peptide / ID: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Sequence | String: MSKTLSLQLP WVEKYRPQVL SDIVGNKETI DRLQQIAKDG NMPHMIISGM PGIGKTTSVH CLAHELLGRS YADGVLELNA SDDRGIDVVR NQIKHFAQKK LHLPPGKHKI VILDEADSMT AGAQQALRRT MELYSNSTRF AFACNQSNKI IEPLQSRCAI LRYSKLSDED ...String: MSKTLSLQLP WVEKYRPQVL SDIVGNKETI DRLQQIAKDG NMPHMIISGM PGIGKTTSVH CLAHELLGRS YADGVLELNA SDDRGIDVVR NQIKHFAQKK LHLPPGKHKI VILDEADSMT AGAQQALRRT MELYSNSTRF AFACNQSNKI IEPLQSRCAI LRYSKLSDED VLKRLLQIIK LEDVKYTNDG LEAIIFTAEG DMRQAINNLQ STVAGHGLVN ADNVFKIVDS PHPLIVKKML LASNLEDSIQ ILRTDLWKKG YSSIDIVTTS FRVTKNLAQV KESVRLEMIK EIGLTHMRIL EGVGTYLQLA SMLAKIHKLN NKA UniProtKB: Replication factor C subunit 4 |
-Macromolecule #5: Rfc5
Macromolecule | Name: Rfc5 / type: protein_or_peptide / ID: 5 / Enantiomer: LEVO |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Sequence | String: MSLWVDKYRP KSLNALSHNE ELTNFLKSLS DQPRDLPHLL LYGPNGTGKK TRCMALLESI FGPGVYRLKI DVRQFVTASN RKLELNVVSS PYHLEITPSD MGNNDRIVIQ ELLKEVAQME QVDFQDSKDG LAHRYKCVII NEANSLTKDA QAALRRTMEK YSKNIRLIMV ...String: MSLWVDKYRP KSLNALSHNE ELTNFLKSLS DQPRDLPHLL LYGPNGTGKK TRCMALLESI FGPGVYRLKI DVRQFVTASN RKLELNVVSS PYHLEITPSD MGNNDRIVIQ ELLKEVAQME QVDFQDSKDG LAHRYKCVII NEANSLTKDA QAALRRTMEK YSKNIRLIMV CDSMSPIIAP IKSRCLLIRC PAPSDSEIST ILSDVVTNER IQLETKDILK RIAQASNGNL RVSLLMLESM ALNNELALKS SSPIIKPDWI IVIHKLTRKI VKERSVNSLI ECRAVLYDLL AHCIPANIIL KELTFSLLDV ETLNTTNKSS IIEYSSVFDE RLSLGNKAIF HLEGFIAKVM CCLD UniProtKB: Replication factor C subunit 5 |
-Macromolecule #6: PCNA
Macromolecule | Name: PCNA / type: protein_or_peptide / ID: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Sequence | String: GPHMASMLEA KFEEASLFKR IIDGFKDCV QLVNFQCKED G IIAQAVDD SRVLLVSLEI GV EAFQEYR CDHPVTLGMD LTS LSKILR CGNNTDTLTL IADN TPDSI ILLFEDTKKD RIAEY SLKL MDIDADFLKI EELQYD STL SLPSSEFSKI VRDLSQL SD ...String: GPHMASMLEA KFEEASLFKR IIDGFKDCV QLVNFQCKED G IIAQAVDD SRVLLVSLEI GV EAFQEYR CDHPVTLGMD LTS LSKILR CGNNTDTLTL IADN TPDSI ILLFEDTKKD RIAEY SLKL MDIDADFLKI EELQYD STL SLPSSEFSKI VRDLSQL SD SINIMITKET IKFVADGD I GSGSVIIKPF VDMEHPETS IKLEMDQPVD LTFGAKYLLD IIKGSSLSD RVGIRLSSEA P ALFQFDLK SGFLQFFLAP KFNDEE |
-Macromolecule #3: Rfc3
Macromolecule | Name: Rfc3 / type: rna / ID: 3 |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Sequence | String: MSTSTEKRSK ENLPWVEKYR PETLDEVYGQ NEVITTVRKF VDEGKLPHLL FYGPPGTGKT STIVALAREI YGKNYSNMVL ELNASDDRGI DVVRNQIKDF ASTRQIFSKG FKLIILDEAD AMTNAAQNAL RRVIERYTKN TRFCVLANYA HKLTPALLSR CTRFRFQPLP ...String: MSTSTEKRSK ENLPWVEKYR PETLDEVYGQ NEVITTVRKF VDEGKLPHLL FYGPPGTGKT STIVALAREI YGKNYSNMVL ELNASDDRGI DVVRNQIKDF ASTRQIFSKG FKLIILDEAD AMTNAAQNAL RRVIERYTKN TRFCVLANYA HKLTPALLSR CTRFRFQPLP QEAIERRIAN VLVHEKLKLS PNAEKALIEL SNGDMRRVLN VLQSCKATLD NPDEDEISDD VIYECCGAPR PSDLKAVLKS ILEDDWGTAH YTLNKVRSAK GLALIDLIEG IVKILEDYEL QNEETRVHLL TKLADIEYSI SKGGNDQIQG SAVIGAIKAS FENETVKANV |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 4 / Number real images: 6109 / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.1 µm / Nominal magnification: 130000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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Output model | PDB-7thj: |