+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-34997 | |||||||||
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Title | Thermus thermophilus RNA polymerase coreenzyme | |||||||||
Map data | ||||||||||
Sample |
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Function / homology | Function and homology information DNA-directed RNA polymerase complex / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / protein dimerization activity / DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Thermus thermophilus HB8 (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Murayama Y / Ehara H / Sekine S | |||||||||
Funding support | Japan, 2 items
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Citation | Journal: Sci Adv / Year: 2023 Title: Structural basis of the transcription termination factor Rho engagement with transcribing RNA polymerase from . Authors: Yuko Murayama / Haruhiko Ehara / Mari Aoki / Mie Goto / Takeshi Yokoyama / Shun-Ichi Sekine / Abstract: Transcription termination is an essential step in transcription by RNA polymerase (RNAP) and crucial for gene regulation. For many bacterial genes, transcription termination is mediated by the ...Transcription termination is an essential step in transcription by RNA polymerase (RNAP) and crucial for gene regulation. For many bacterial genes, transcription termination is mediated by the adenosine triphosphate-dependent RNA translocase/helicase Rho, which causes RNA/DNA dissociation from the RNAP elongation complex (EC). However, the structural basis of the interplay between Rho and RNAP remains obscure. Here, we report the cryo-electron microscopy structure of the RNAP EC engaged with Rho. The Rho hexamer binds RNAP through the carboxyl-terminal domains, which surround the RNA exit site of RNAP, directing the nascent RNA seamlessly from the RNA exit to its central channel. The β-flap tip at the RNA exit is critical for the Rho-dependent RNA release, and its deletion causes an alternative Rho-RNAP binding mode, which is irrelevant to termination. The Rho binding site overlaps with the binding sites of other macromolecules, such as ribosomes, providing a general basis of gene regulation. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_34997.map.gz | 98.3 MB | EMDB map data format | |
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Header (meta data) | emd-34997-v30.xml emd-34997.xml | 21 KB 21 KB | Display Display | EMDB header |
Images | emd_34997.png | 67.9 KB | ||
Others | emd_34997_half_map_1.map.gz emd_34997_half_map_2.map.gz | 98.5 MB 98.5 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-34997 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-34997 | HTTPS FTP |
-Related structure data
Related structure data | 8hshMC 8hsgC 8hsjC 8hslC 8hsrC C: citing same article (ref.) M: atomic model generated by this map |
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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_34997.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_34997_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_34997_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : RNA polymerase coreenzyme
Entire | Name: RNA polymerase coreenzyme |
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Components |
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-Supramolecule #1: RNA polymerase coreenzyme
Supramolecule | Name: RNA polymerase coreenzyme / type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: Thermus thermophilus HB8 (bacteria) |
-Macromolecule #1: DNA-directed RNA polymerase subunit alpha
Macromolecule | Name: DNA-directed RNA polymerase subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase |
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Source (natural) | Organism: Thermus thermophilus HB8 (bacteria) |
Molecular weight | Theoretical: 35.056164 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MLDSKLKAPV FTVRTQGREY GEFVLEPLER GFGVTLGNPL RRILLSSIPG TAVTSVYIED VLHEFSTIPG VKEDVVEIIL NLKELVVRF LNPSLQTVTL LLKAEGPKEV KARDFLPVAD VEIMNPDLHI ATLEEGGRLN MEVRVDRGVG YVPAEKHGIK D RINAIPVD ...String: MLDSKLKAPV FTVRTQGREY GEFVLEPLER GFGVTLGNPL RRILLSSIPG TAVTSVYIED VLHEFSTIPG VKEDVVEIIL NLKELVVRF LNPSLQTVTL LLKAEGPKEV KARDFLPVAD VEIMNPDLHI ATLEEGGRLN MEVRVDRGVG YVPAEKHGIK D RINAIPVD AVFSPVRRVA FQVEDTRLGQ RTDLDKLTLR IWTDGSVTPL EALNQAVEIL REHLTYFSNP QAAAVAAPEE AK EPEAPPE QEEELDLPLE ELGLSTRVLH SLKEEGIESV RALLALNLKD LKNIPGIGER SLEEIKEALE KKGFTLKE |
-Macromolecule #2: DNA-directed RNA polymerase subunit beta
Macromolecule | Name: DNA-directed RNA polymerase subunit beta / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase |
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Source (natural) | Organism: Thermus thermophilus HB8 (bacteria) |
Molecular weight | Theoretical: 125.436539 KDa |
Recombinant expression | Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) |
Sequence | String: MEIKRFGRIR EVIPLPPLTE IQVESYRRAL QADVPPEKRE NVGIQAAFRE TFPIEEEDKG KGGLVLDFLE YRLGEPPFPQ DECREKDLT YQAPLYARLQ LIHKDTGLIK EDEVFLGHIP LMTEDGSFII NGADRVIVSQ IHRSPGVYFT PDPARPGRYI A SIIPLPKR ...String: MEIKRFGRIR EVIPLPPLTE IQVESYRRAL QADVPPEKRE NVGIQAAFRE TFPIEEEDKG KGGLVLDFLE YRLGEPPFPQ DECREKDLT YQAPLYARLQ LIHKDTGLIK EDEVFLGHIP LMTEDGSFII NGADRVIVSQ IHRSPGVYFT PDPARPGRYI A SIIPLPKR GPWIDLEVEP NGVVSMKVNK RKFPLVLLLR VLGYDQETLA RELGAYGELV QGLMDESVFA MRPEEALIRL FT LLRPGDP PKRDKAVAYV YGLIADPRRY DLGEAGRYKA EEKLGIRLSG RTLARFEDGE FKDEVFLPTL RYLFALTAGV PGH EVDDID HLGNRRIRTV GELMTDQFRV GLARLARGVR ERMLMGSEDS LTPAKLVNSR PLEAAIREFF SRSQLSQFKD ETNP LSSLR HKRRISALGP GGLTRERAGF DVRDVHRTHY GRICPVETPE GANIGLITSL AAYARVDELG FIRTPYRRVV GGVVT DEVV YMTATEEDRY TIAQANTPLE GNRIAAERVV ARRKGEPVIV SPEEVEFMDV SPKQVFSVNT NLIPFLEHDD ANRALM GSN MQTQAVPLIR AQAPVVMTGL EERVVRDSLA ALYAEEDGEV AKVDGNRIVV RYEDGRLVEY PLRRFYRSNQ GTALDQR PR VVVGQRVRKG DLLADGPASE NGFLALGQNV LVAIMPFDGY NFEDAIVISE ELLKRDFYTS IHIERYEIEA RDTKLGPE R ITRDIPHLSE AALRDLDEEG VVRIGAEVKP GDILVGRTSF KGESEPTPEE RLLRSIFGEK ARDVKDTSLR VPPGEGGIV VRTVRLRRGD PGVELKPGVR EVVRVYVAQK RKLQVGDKLA NRHGNKGVVA KILPVEDMPH LPDGTPVDVI LNPLGVPSRM NLGQILETH LGLAGYFLGQ RYISPIFDGA KEPEIKELLA QAFEVYFGKR KGEGFGVDKR EVEVLRRAEK LGLVTPGKTP E EQLKELFL QGKVVLYDGR TGEPIEGPIV VGQMFIMKLY HMVEDKMHAR STGPYSLITQ QPLGGKAQFG GQRFGEMEVW AL EAYGAAH TLQEMLTLKS DDIEGRNAAY EAIIKGEDVP EPSVPESFRV LVKELQALAL DVQTLDEKDN PVDIFEGLAS KR |
-Macromolecule #3: DNA-directed RNA polymerase subunit beta'
Macromolecule | Name: DNA-directed RNA polymerase subunit beta' / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase |
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Source (natural) | Organism: Thermus thermophilus HB8 (bacteria) |
Molecular weight | Theoretical: 171.994391 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MKKEVRKVRI ALASPEKIRS WSYGEVEKPE TINYRTLKPE RDGLFDERIF GPIKDYECAC GKYKRQRFEG KVCERCGVEV TKSIVRRYR MGHIELATPA AHIWFVKDVP SKIGTLLDLS ATELEQVLYF SKYIVLDPKG AILNGVPVEK RQLLTDEEYR E LRYGKQET ...String: MKKEVRKVRI ALASPEKIRS WSYGEVEKPE TINYRTLKPE RDGLFDERIF GPIKDYECAC GKYKRQRFEG KVCERCGVEV TKSIVRRYR MGHIELATPA AHIWFVKDVP SKIGTLLDLS ATELEQVLYF SKYIVLDPKG AILNGVPVEK RQLLTDEEYR E LRYGKQET YPLPPGVDAL VKDGEEVVKG QELAPGVVSR LDGVALYRFP RRVRVEYVKK ERAGLRLPLA AWVEKEAYKP GE ILAELPE PYLFRAEEEG VVELKELEEG AFLVLRREDE PVATYFLPVG MTPLVVHGEI VEKGQPLAEA KGLLRMPRQV RAA QVEAEE EGETVYLTLF LEWTEPKDYR VQPHMNVVVP EGARVEAGDK IVAAIDPEEE VIAEAEGVVH LHEPASILVV KARV YPFED DVEVSTGDRV APGDVLADGG KVKSDVYGRV EVDLVRNVVR VVESYDIDAR MGAEAIQQLL KELDLEALEK ELLEE MKHP SRARRAKARK RLEVVRAFLD SGNRPEWMIL EAVPVLPPDL RPMVQVDGGR FATSDLNDLY RRLINRNNRL KKLLAQ GAP EIIIRNEKRM LQEAVDALLD NGRRGAPVTN PGSDRPLRSL TDILSGKQGR FRQNLLGKRV DYSGRSVIVV GPQLKLH QC GLPKRMALEL FKPFLLKKME EKGIAPNVKA ARRMLERQRD IKDEVWDALE EVIHGKVVLL NRAPTLHRLG IQAFQPVL V EGQSIQLHPL VCEAFNADFD GDQMAVHVPL SSFAQAEARI QMLSAHNLLS PASGEPLAKP SRDIILGLYY ITQVRKEKK GAGLEFATPE EALAAHERGE VALNAPIKVA GRETSVGRLK YVFANPDEAL LAVAHGIVDL QDVVTVRYMG KRLETSPGRI LFARIVAEA VEDEKVAWEL IQLDVPQEKN SLKDLVYQAF LRLGMEKTAR LLDALKYYGF TFSTTSGITI GIDDAVIPEE K KQYLEEAD RKLLQIEQAY EMGFLTDRER YDQILQLWTE TTEKVTQAVF KNFEENYPFN PLYVMAQSGA RGNPQQIRQL CG LRGLMQK PSGETFEVPV RSSFREGLTV LEYFISSHGA RKGGADTALR TADSGYLTRK LVDVTHEIVV READCGTTNY ISV PLFQPD EVTRSLRLRK RADIEAGLYG RVLAREVEVL GVRLEEGRYL SMDDVHLLIK AAEAGEIQEV PVRSPLTCQT RYGV CQKCY GYDLSMARPV SIGEAVGIVA AQSIGEPGTQ LTMRTFHTGG VAGAADITQG LPRVIELFEA RRPKAKAVIS EIDGV VRIE ETEEKLSVFV ESEGFSKEYK LPKEARLLVK DGDYVEAGQP LTRGAIDPHQ LLEAKGPEAV ERYLVEEIQK VYRAQG VKL HDKHIEIVVR QMMKYVEVTD PGDSRLLEGQ VLEKWDVEAL NERLIAEGKT PVAWKPLLMG VTKSALSTKS WLSAASF QN TTHVLTEAAI AGKKDELIGL KENVILGRLI PAGTGSDFVR FTQVVDQKTL KAIEEARKEA VEAKERPAAR RGVKREQP G KQADYKDDDD K |
-Macromolecule #4: DNA-directed RNA polymerase subunit omega
Macromolecule | Name: DNA-directed RNA polymerase subunit omega / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed RNA polymerase |
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Source (natural) | Organism: Thermus thermophilus HB8 (bacteria) |
Molecular weight | Theoretical: 11.491237 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MAEPGIDKLF GMVDSKYRLT VVVAKRAQQL LRHGFKNTVL EPEERPKMQT LEGLFDDPNA VTWAMKELLT GRLVFGENLV PEDRLQKEM ERLYPGEREE |
-Macromolecule #5: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 5 / Number of copies: 2 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #6: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 6 / Number of copies: 1 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-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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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: 2.0 µm / Nominal defocus min: 1.2 µm |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 392560 |