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- EMDB-61213: Cryo-EM structure of wild type Aquifex aeolicus RseP in complex w... -
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Open data
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Basic information
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Title | Cryo-EM structure of wild type Aquifex aeolicus RseP in complex with Fab | ||||||||||||||||||
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![]() | Protease / HYDROLASE | ||||||||||||||||||
Function / homology | ![]() Hydrolases; Acting on peptide bonds (peptidases); Metalloendopeptidases / metalloendopeptidase activity / proteolysis / metal ion binding / plasma membrane Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.95 Å | ||||||||||||||||||
![]() | Asahi K / Hirose M / Aruga R / Kato T / Nogi T | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structure of the bacterial intramembrane metalloprotease RseP in the substrate-bound state. Authors: Kikuko Asahi / Mika Hirose / Rie Aruga / Yosuke Shimizu / Michiko Tajiri / Tsubasa Tanaka / Yuriko Adachi / Yukari Tanaka / Mika K Kaneko / Yukinari Kato / Satoko Akashi / Yoshinori Akiyama ...Authors: Kikuko Asahi / Mika Hirose / Rie Aruga / Yosuke Shimizu / Michiko Tajiri / Tsubasa Tanaka / Yuriko Adachi / Yukari Tanaka / Mika K Kaneko / Yukinari Kato / Satoko Akashi / Yoshinori Akiyama / Yohei Hizukuri / Takayuki Kato / Terukazu Nogi / ![]() Abstract: Site-2 proteases (S2Ps), conserved intramembrane metalloproteases that maintain cellular homeostasis, are associated with chronic infection and persistence leading to multidrug resistance in ...Site-2 proteases (S2Ps), conserved intramembrane metalloproteases that maintain cellular homeostasis, are associated with chronic infection and persistence leading to multidrug resistance in bacterial pathogens. A structural model of how S2Ps discriminate and accommodate substrates could help us develop selective antimicrobial agents. We previously proposed that the S2P RseP unwinds helical substrate segments before cleavage, but the mechanism for accommodating a full-length membrane-spanning substrate remained unclear. Our present cryo-EM analysis of RseP (RseP) revealed that a substrate-like membrane protein fragment from the expression host occupied the active site while spanning a transmembrane cavity that is inaccessible via lateral diffusion. Furthermore, in vivo photocrosslinking supported that this substrate accommodation mode is recapitulated on the cell membrane. Our results suggest that the substrate accommodation by threading through a conserved membrane-associated region stabilizes the substrate-complex and contributes to substrate discrimination on the membrane. | ||||||||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 11.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 29.9 KB 29.9 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 5.9 KB | Display | ![]() |
Images | ![]() | 64.9 KB | ||
Filedesc metadata | ![]() | 7.8 KB | ||
Others | ![]() ![]() | 20.6 MB 20.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 774.4 KB | Display | ![]() |
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Full document | ![]() | 773.9 KB | Display | |
Data in XML | ![]() | 13 KB | Display | |
Data in CIF | ![]() | 16.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9j82MC ![]() 8zayC ![]() 9j83C 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: 1.35 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_61213_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_61213_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : RseP ortholog wild-type from Aquifex aeolicus in complex with 4A9 Fab
Entire | Name: RseP ortholog wild-type from Aquifex aeolicus in complex with 4A9 Fab |
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Components |
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-Supramolecule #1: RseP ortholog wild-type from Aquifex aeolicus in complex with 4A9 Fab
Supramolecule | Name: RseP ortholog wild-type from Aquifex aeolicus in complex with 4A9 Fab type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Molecular weight | Theoretical: 50 KDa |
-Supramolecule #2: Fab of mouse monoclonal antibody IgG 4A9
Supramolecule | Name: Fab of mouse monoclonal antibody IgG 4A9 / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #2-#3 |
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Source (natural) | Organism: ![]() ![]() |
-Supramolecule #3: RseP ortholog wild-type from Aquifex aeolicus
Supramolecule | Name: RseP ortholog wild-type from Aquifex aeolicus / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Putative zinc metalloprotease aq_1964
Macromolecule | Name: Putative zinc metalloprotease aq_1964 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO EC number: Hydrolases; Acting on peptide bonds (peptidases); Metalloendopeptidases |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 49.322203 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: (FME)GLIAFLILI GVLVWVHEFG HFLMAKLFRV KVEIFSIGFG PPIFRRQWGE TVYQIAALPL GGYVKLYGEE ENVHDP RAF STKKPWQKIL IALGGPLFNF LFTILVFALV YTAGVEVPKY LKEPVVVGYV QRDSIAQKIG IKPGDKIIKI (SNN)GY EVRTWE ...String: (FME)GLIAFLILI GVLVWVHEFG HFLMAKLFRV KVEIFSIGFG PPIFRRQWGE TVYQIAALPL GGYVKLYGEE ENVHDP RAF STKKPWQKIL IALGGPLFNF LFTILVFALV YTAGVEVPKY LKEPVVVGYV QRDSIAQKIG IKPGDKIIKI (SNN)GY EVRTWE DLRDALIRLS LDGVKETTLF LERNGEVLHL TIKVPNVQKG EELGIAPLVK PVVGGVKKGS PADQVGIKPG DLIL EVNGK KINTWYELVE EVRKSQGKAI KLKILRNGKM IEKELIPAKD PKTGTYFIGL FPKTETVVEK KPFGEALASA VNRTW ELTV LTLKTIAGLI TGKVSFQTLG GPIAIAQIAG QAAQSGFIPY LVMMAFISLQ LGIFNLIPLP ILDGGLILLF AIEWLR GRP LPEKFKEYWQ RVGLAIIITL TIFVFINDIL RLLRGRGSHH HHHHHH UniProtKB: Putative zinc metalloprotease aq_1964 |
-Macromolecule #2: VH-CH1 region of mouse monoclonal antibody IgG 4A9
Macromolecule | Name: VH-CH1 region of mouse monoclonal antibody IgG 4A9 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 25.564592 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: GSEVKLVESG GGLVQPGGSL RLSCVTSGFT FTDYYMSWVR QPPGKALEWL AFIRNKVNGY TTEYRASVKG RFTISRDSSQ SILYLQVNT LRAEDSATYY CARDRGGNGV YFDYWGQGTT LTVSSAKTTP PSVYPLAPGS AAQTNSMVTL GCLVKGYFPE P VTVTWNSG ...String: GSEVKLVESG GGLVQPGGSL RLSCVTSGFT FTDYYMSWVR QPPGKALEWL AFIRNKVNGY TTEYRASVKG RFTISRDSSQ SILYLQVNT LRAEDSATYY CARDRGGNGV YFDYWGQGTT LTVSSAKTTP PSVYPLAPGS AAQTNSMVTL GCLVKGYFPE P VTVTWNSG SLSSGVHTFP AVLQSDLYTL SSSVTVPSST WPSETVTCNV AHPASSTKVD KKIVPRDCGG VAMPGAEDDV V |
-Macromolecule #3: L chain of mouse monoclonal antibody IgG 4A9
Macromolecule | Name: L chain of mouse monoclonal antibody IgG 4A9 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 23.734125 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: DIVMTQSHKF MSTSVGDRVS ITCKASQDVG TDVAWYQQKP GQSPKLLIYW ASIRHTGVPD RFTGSGSGTD FTLTISNVQS EDLADYFCQ QYSSYPLTFG AGTKLELERA DAAPTVSIFP PSSEQLTSGG ASVVCFLNNF YPKDINVKWK IDGSERQNGV L NSWTDQDS ...String: DIVMTQSHKF MSTSVGDRVS ITCKASQDVG TDVAWYQQKP GQSPKLLIYW ASIRHTGVPD RFTGSGSGTD FTLTISNVQS EDLADYFCQ QYSSYPLTFG AGTKLELERA DAAPTVSIFP PSSEQLTSGG ASVVCFLNNF YPKDINVKWK IDGSERQNGV L NSWTDQDS KDSTYSMSST LTLTKDEYER HNSYTCEATH KTSTSPIVKS FNRNEC |
-Macromolecule #4: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 4 / Number of copies: 1 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Grid | Model: Quantifoil R0.6/1 / Material: GOLD / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Spherical aberration corrector: CEOS, spherical aberration corrector Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number grids imaged: 1 / Number real images: 11400 / Average exposure time: 3.238 sec. / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Calibrated defocus max: 3.6470000000000002 µm / Calibrated defocus min: 0.162 µm / Calibrated magnification: 103703 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 0.019 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 105000 |
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 |
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Refinement | Space: REAL / Protocol: FLEXIBLE FIT | ||||||||||||||
Output model | ![]() PDB-9j82: |