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- EMDB-53151: Escherichia coli polynucleotide phosphorylase in complex with rec... -
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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | Escherichia coli polynucleotide phosphorylase in complex with recognition site of RNase E | |||||||||
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![]() | polynucleotide phosphorylase / ribonuclease E / RNA degradosome / RNA BINDING PROTEIN | |||||||||
Function / homology | ![]() regulation of RNA helicase activity / rRNA 5'-end processing / ribonuclease E / ribonuclease E activity / bacterial degradosome / polyribonucleotide nucleotidyltransferase / polyribonucleotide nucleotidyltransferase activity / endoribonuclease complex / DEAD/H-box RNA helicase binding / 7S RNA binding ...regulation of RNA helicase activity / rRNA 5'-end processing / ribonuclease E / ribonuclease E activity / bacterial degradosome / polyribonucleotide nucleotidyltransferase / polyribonucleotide nucleotidyltransferase activity / endoribonuclease complex / DEAD/H-box RNA helicase binding / 7S RNA binding / cyclic-di-GMP binding / RNA catabolic process / tRNA processing / mRNA catabolic process / protein complex oligomerization / RNA nuclease activity / RNA processing / RNA endonuclease activity / cytoplasmic side of plasma membrane / rRNA processing / response to heat / 3'-5'-RNA exonuclease activity / molecular adaptor activity / protein homotetramerization / tRNA binding / rRNA binding / magnesium ion binding / RNA binding / zinc ion binding / identical protein binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.52 Å | |||||||||
![]() | Paris G / Luisi BF | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Escherichia coli polynucleotide phosphorylase in complex with recognition site of RNase E Authors: Paris G / Luisi BF | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 89.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 18.8 KB 18.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.9 KB | Display | ![]() |
Images | ![]() | 66.2 KB | ||
Filedesc metadata | ![]() | 6.6 KB | ||
Others | ![]() ![]() | 165.3 MB 165.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9qh0MC 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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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.73 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: One of the two half-maps
File | emd_53151_half_map_1.map | ||||||||||||
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Annotation | One of the two half-maps | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Second of the two half-maps
File | emd_53151_half_map_2.map | ||||||||||||
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Annotation | Second of the two half-maps | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Polynucleotide phosphorylase in complex with recognition site fro...
Entire | Name: Polynucleotide phosphorylase in complex with recognition site from ribonuclease E |
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Components |
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-Supramolecule #1: Polynucleotide phosphorylase in complex with recognition site fro...
Supramolecule | Name: Polynucleotide phosphorylase in complex with recognition site from ribonuclease E type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 Details: Complex prepared by co-expression and chromatographic purification |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Polyribonucleotide nucleotidyltransferase
Macromolecule | Name: Polyribonucleotide nucleotidyltransferase / type: protein_or_peptide / ID: 1 Details: catalytic core without S1 and KH RNA binding domains Number of copies: 3 / Enantiomer: LEVO / EC number: polyribonucleotide nucleotidyltransferase |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 59.656828 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MLNPIVRKFQ YGQHTVTLET GMMARQATAA VMVSMDDTAV FVTVVGQKKA KPGQDFFPLT VNYQERTYAA GRIPGSFFRR EGRPSEGET LIARLIDRPI RPLFPEGFVN EVQVIATVVS VNPQVNPDIV AMIGASAALS LSGIPFNGPI GAARVGYIND Q YVLNPTQD ...String: MLNPIVRKFQ YGQHTVTLET GMMARQATAA VMVSMDDTAV FVTVVGQKKA KPGQDFFPLT VNYQERTYAA GRIPGSFFRR EGRPSEGET LIARLIDRPI RPLFPEGFVN EVQVIATVVS VNPQVNPDIV AMIGASAALS LSGIPFNGPI GAARVGYIND Q YVLNPTQD ELKESKLDLV VAGTEAAVLM VESEAQLLSE DQMLGAVVFG HEQQQVVIQN INELVKEAGK PRWDWQPEPV NE ALNARVA ALAEARLSDA YRITDKQERY AQVDVIKSET IATLLAEDET LDENELGEIL HAIEKNVVRS RVLAGEPRID GRE KDMIRG LDVRTGVLPR THGSALFTRG ETQALVTATL GTARDAQVLD ELMGERTDTF LFHYNFPPYS VGETGMVGSP KRRE IGHGR LAKRGVLAVM PDMDKFPYTV RVVSEITESN GSSSMASVCG ASLALMDAGV PIKAAVAGIA MGLVKEGDNY VVLSD ILGD EDHLGDMDFK VAGSRDGISA LQMDIKIEGI TKEIMQVALN QAKGARLHIL GVMEQAINAP RGDIS UniProtKB: Polyribonucleotide nucleotidyltransferase |
-Macromolecule #2: Ribonuclease E
Macromolecule | Name: Ribonuclease E / type: protein_or_peptide / ID: 2 Details: segment of ribonuclease E that interacts with polynucleotide phosphorylase Number of copies: 1 / Enantiomer: LEVO / EC number: ribonuclease E |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 6.14772 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: NHATAPMTRA PAPEYVPEAP RHSDWQRPTF AFEGKGAAGG HTATHHASAA PARPQPVE UniProtKB: Ribonuclease E |
-Macromolecule #3: water
Macromolecule | Name: water / type: ligand / ID: 3 / Number of copies: 7 / Formula: HOH |
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Molecular weight | Theoretical: 18.015 Da |
Chemical component information | ![]() ChemComp-HOH: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 3.6 mg/mL |
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Buffer | pH: 8 Details: 20 mM Tris-HCl pH 8.0, 25 mM MgCl2, 150 mM KCl, 1 mM TCEP |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277.2 K / Instrument: FEI VITROBOT MARK IV / Details: blotting force -4, 3 sec blot time. |
Details | Purified PNPase core and RNE-muGFP-CHis proteins were mixed in 1:2 ratio and their complex were separated on the Superdex 200 Increase 10/300 GL column (Cytiva) equilibrated with Cryo-EM buffer (20 mM Tris-HCl pH 8.0, 25 mM MgCl2, 150 mM KCl, 1 mM TCEP). Peak fractions were combined, the protein was concentrated to 15 microM using Amicon Ultra concentrator with 10 kDa cut-off (Millipore) and used to prepare Cryo-EM grids. The samples were mixed with CHAPSO (3-([3-cholamidopropyl]dimethylammonio)-2-hydroxy-1-propanesulfonate) at a final concentration of 8 mM |
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Electron microscopy
Microscope | TFS KRIOS |
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Specialist optics | Energy filter - Name: TFS Selectris |
Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Number grids imaged: 1 / Number real images: 6112 / Average exposure time: 4.39 sec. / Average electron dose: 51.05 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Initial model | Chain - Source name: AlphaFold / Chain - Initial model type: in silico model |
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Details | phenix refine and manual rebuilding using COOT |
Refinement | Space: REAL / Protocol: AB INITIO MODEL |
Output model | ![]() PDB-9qh0: |