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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | BsaXI-DNA complex II | |||||||||
![]() | BsaXI-DNA complex conformation P40-J521 map file P40-J524 | |||||||||
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![]() | restriction nuclease / restriction-modification systems / Type IIB / R-M complex / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||
Function / homology | : / Type I restriction modification DNA specificity domain / Type I restriction modification DNA specificity domain superfamily / Type I restriction modification DNA specificity domain / DNA restriction-modification system / DNA binding / Uncharacterized protein / : ![]() | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.06 Å | |||||||||
![]() | Shen BW / Stoddard BL / Xu S | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural and biochemical analysis of subunit assembly, DNA recognition and cleavage by a Type IIB restriction-modification enzyme: BsaXI Authors: Shen BW / Heiter D / Xu S / Stoddard BL | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 69.1 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 24.7 KB 24.7 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 10.8 KB | Display | ![]() |
Images | ![]() | 117.7 KB | ||
Masks | ![]() | 137.1 MB | ![]() | |
Filedesc metadata | ![]() | 7.7 KB | ||
Others | ![]() ![]() | 127.4 MB 127.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8w2qMC ![]() 8w2pC 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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Map
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Annotation | BsaXI-DNA complex conformation P40-J521 map file P40-J524 | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.12 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | ![]() | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: BsaXI-DNA complex conformation J521 P40-J524 half map B
File | emd_43755_half_map_1.map | ||||||||||||
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Annotation | BsaXI-DNA complex conformation J521 P40-J524 half map B | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: BsaXI DNA complex conformation J521 p40-J524 half map A
File | emd_43755_half_map_2.map | ||||||||||||
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Annotation | BsaXI_DNA complex conformation J521 p40-J524 half map A | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Quaternary complex of RM, S and DNA complex
Entire | Name: Quaternary complex of RM, S and DNA complex |
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Components |
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-Supramolecule #1: Quaternary complex of RM, S and DNA complex
Supramolecule | Name: Quaternary complex of RM, S and DNA complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 2.69 kDa/nm |
-Macromolecule #1: RM.BsaXI
Macromolecule | Name: RM.BsaXI / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO EC number: site-specific DNA-methyltransferase (adenine-specific) |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 107.195234 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MKNWQRIVEA KLEQQKHKVA EISLENGTVN YSKKIKHNRN LKALTGDEEI VRAFLIDRLV NELDYKPEYL ETEKEYTIKG GHSKINPRV DVLVKDDKGN PFFFIEVKAP NKFEEDKDEI EGQLFALAQA EERDFKTKVK YLVYYTVELI DDEIVDRAII I DFEKYPTY ...String: MKNWQRIVEA KLEQQKHKVA EISLENGTVN YSKKIKHNRN LKALTGDEEI VRAFLIDRLV NELDYKPEYL ETEKEYTIKG GHSKINPRV DVLVKDDKGN PFFFIEVKAP NKFEEDKDEI EGQLFALAQA EERDFKTKVK YLVYYTVELI DDEIVDRAII I DFEKYPTY TDWSNGGFIS TGTELTAGYG EPKKQPLIKG HEKYDLRVRI DREEIEGLGR NLHNVLWGGG GTNDSEIFYS LV NIILAKI QDEYEKEDGQ EYDFQVYQYG DNVESPQKLF DRINALYKRA LREQLNVTDE QKIAEDNVIN RNKFPLNKLV YTV QALESL SFLEGRNSLD GKDILGDFFE SIIRDGFKQT KGQFFTPTPI VKFILYALQL DKLAIDRLNN DRELPLIIDP SAGS GTFLI EAMKLITKEV KYKQNHKVKS SRQITKRFEE LFMPDHNENK WAREYLYGCE INFDLGTASK VNMILHGDGS ANIFV QDGL LPFRFYVKET SPNYLETASP DALYGDKEVN GKFDVVVSNP PFSVDLDTQT QREVRNAFLF GDKKNSENLF IERYYQ LLK EGGRLGVVLP ESVFDTTENK YIRLFIFKYF KVKAVVSLPQ VTFEPFTSTK TSLLFAQKKT KEEVEQWNEL WDKYGKE WS LLKTRINDYF SYFVKGRPLN KKWAPDVVKD IQEGNEDNIR KNIFRFLKDH IKEEDKNLEI KDLLIKYAEE ISSISKHE K ETDVFGFYNA WWVFGEVAKE LDYPIFMAEA ENVGYKRTKK GEKPMPNDLY DLEYAPSTLD CEKVLSSFDI EINALEASK TKLSVEKGLL EEKLKDKEDK ENEKIQKRLN KISELLETIE NQLDSIRSKK LEVEGILEKY YENNKLKEEY SERDDEELIN HFKHGVLYQ YRSEDILLRN KTVHKILDEI RQGVIWD UniProtKB: UNIPROTKB: A0A4D7QEP1 |
-Macromolecule #2: S.BsaXI
Macromolecule | Name: S.BsaXI / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 55.038824 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGLIQRRNFS TFASEPSVRF DFNYMKSVTP TTEEYYTYKS LFEVVPSTVP TLDESEPFKY AEIGHVSKNG EVFPVTLSFE DRDELNEDL FKKIEKGDIF LPERGNILIS AIRPYLNKIV LIKEDDKTDI YFTKAFIQIK PLINSRILYY ALRTIFSEKI N AVSRQGKG ...String: MGLIQRRNFS TFASEPSVRF DFNYMKSVTP TTEEYYTYKS LFEVVPSTVP TLDESEPFKY AEIGHVSKNG EVFPVTLSFE DRDELNEDL FKKIEKGDIF LPERGNILIS AIRPYLNKIV LIKEDDKTDI YFTKAFIQIK PLINSRILYY ALRTIFSEKI N AVSRQGKG YPTLKEDDLK TIQFSKKVID NLLAKEEELI SNIDALEKDI KELKSIQRSK KEIVDEVFSS HFNINMVELM AL DSQRRVD VGLSSISSLN STIRYSYRWN KMKLIQKYLY RDIDCIEPLG KYILSSNNGW SPESVVGGEG IPILGQEHLE FDG VLNVSP TKATTKTKNN MENFFIQEGD LFISRGNTVD LVGLACVVET EVTEDIIYPD LYIRLKIDEK VIHKKYLALL FNSF FGRLY FKYVSKGKNQ TMVKISSNEL LNYYLPIPPM EEQLEIVGKI EEQIGAQNEI EKQIEEKRNQ IRVIIEETAR S UniProtKB: Uncharacterized protein |
-Macromolecule #3: DNA (41-MER)
Macromolecule | Name: DNA (41-MER) / type: dna / ID: 3 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 16.097412 KDa |
Sequence | String: (DA)(DA)(DT)(DA)(DA)(DG)(DC)(DT)(DG)(DA) (DA)(DT)(DA)(DT)(DT)(DG)(DT)(DC)(DG)(DG) (DA)(6MA)(DC)(DC)(DA)(DA)(DG)(DT)(DC) (DT)(DC)(DC)(DA)(DT)(DA)(DT)(DG)(DG)(DA) (DA)(DT)(DT)(DA)(DA)(DT)(DA) ...String: (DA)(DA)(DT)(DA)(DA)(DG)(DC)(DT)(DG)(DA) (DA)(DT)(DA)(DT)(DT)(DG)(DT)(DC)(DG)(DG) (DA)(6MA)(DC)(DC)(DA)(DA)(DG)(DT)(DC) (DT)(DC)(DC)(DA)(DT)(DA)(DT)(DG)(DG)(DA) (DA)(DT)(DT)(DA)(DA)(DT)(DA)(DA)(DG) (DC)(DT)(DA)(DG) |
-Macromolecule #4: DNA (41-MER)
Macromolecule | Name: DNA (41-MER) / type: dna / ID: 4 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 15.949256 KDa |
Sequence | String: (DC)(DT)(DA)(DG)(DC)(DT)(DT)(DA)(DT)(DT) (DA)(DA)(DT)(DT)(DC)(DC)(DA)(DT)(DA)(DT) (DG)(DG)(DA)(DG)(DA)(DC)(DT)(DT)(DG) (DG)(DT)(DT)(DC)(DC)(DG)(DA)(DC)(DA)(DA) (DT) (DA)(DT)(DT)(DC)(DA)(DG) ...String: (DC)(DT)(DA)(DG)(DC)(DT)(DT)(DA)(DT)(DT) (DA)(DA)(DT)(DT)(DC)(DC)(DA)(DT)(DA)(DT) (DG)(DG)(DA)(DG)(DA)(DC)(DT)(DT)(DG) (DG)(DT)(DT)(DC)(DC)(DG)(DA)(DC)(DA)(DA) (DT) (DA)(DT)(DT)(DC)(DA)(DG)(DC)(DT) (DT)(DA)(DT)(DT) |
-Macromolecule #5: S-ADENOSYL-L-HOMOCYSTEINE
Macromolecule | Name: S-ADENOSYL-L-HOMOCYSTEINE / type: ligand / ID: 5 / Number of copies: 1 / Formula: SAH |
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Molecular weight | Theoretical: 384.411 Da |
Chemical component information | ![]() ChemComp-SAH: |
-Macromolecule #6: S-ADENOSYLMETHIONINE
Macromolecule | Name: S-ADENOSYLMETHIONINE / type: ligand / ID: 6 / Number of copies: 1 / Formula: SAM |
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Molecular weight | Theoretical: 398.437 Da |
Chemical component information | ![]() ChemComp-SAM: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.3 mg/mL |
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Buffer | pH: 8 / Component - Concentration: 20.0 mM / Component - Name: TrisHCl / Details: 20 mM TrisHCl, 250 mM Nacl, 2 mM CaCl2 |
Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK IV |
Details | Sample was monodisperse. |
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Electron microscopy #1
Microscopy ID | 1 |
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Microscope | FEI TALOS ARCTICA |
Temperature | Min: 170.0 K |
Specialist optics | Phase plate: VOLTA PHASE PLATE |
Image recording | Image recording ID: 1 / Film or detector model: DIRECT ELECTRON DE-10 (5k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 2-50 / Number grids imaged: 3 / Number real images: 1579 / Average exposure time: 2.0 sec. / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 100.0 µm / Calibrated defocus max: 5.0 µm / Calibrated defocus min: 1.2 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Electron microscopy #1~
Microscopy ID | 1 |
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Microscope | FEI TITAN KRIOS |
Temperature | Min: 170.0 K / Max: 170.0 K |
Specialist optics | Phase plate: OTHER |
Image recording | Image recording ID: 2 / Film or detector model: DIRECT ELECTRON DE-20 (5k x 3k) / Detector mode: COUNTING / Digitization - Frames/image: 2-50 / Number grids imaged: 1 / Number real images: 2238 / Average exposure time: 2.0 sec. / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 3000 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 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: Other / Chain - Initial model type: experimental model / Details: manual built model in coot |
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Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
Output model | ![]() PDB-8w2q: |