+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-30022 | |||||||||
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Title | Structure of cryptochrome in active conformation | |||||||||
Map data | ||||||||||
Sample |
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Function / homology | Function and homology information deoxyribodipyrimidine photo-lyase activity / blue light photoreceptor activity / nucleobase-containing compound metabolic process / response to stress / entrainment of circadian clock by photoperiod / FAD binding / circadian regulation of gene expression / DNA binding / nucleus / cytoplasm Similarity search - Function | |||||||||
Biological species | Zea mays (maize) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Shao K / Zhang X / Zhang P | |||||||||
Citation | Journal: Nat Struct Mol Biol / Year: 2020 Title: The oligomeric structures of plant cryptochromes. Authors: Kai Shao / Xue Zhang / Xu Li / Yahui Hao / Xiaowei Huang / Miaolian Ma / Minhua Zhang / Fang Yu / Hongtao Liu / Peng Zhang / Abstract: Cryptochromes (CRYs) are a group of evolutionarily conserved flavoproteins found in many organisms. In plants, the well-studied CRY photoreceptor, activated by blue light, plays essential roles in ...Cryptochromes (CRYs) are a group of evolutionarily conserved flavoproteins found in many organisms. In plants, the well-studied CRY photoreceptor, activated by blue light, plays essential roles in plant growth and development. However, the mechanism of activation remains largely unknown. Here, we determined the oligomeric structures of the blue-light-perceiving PHR domain of Zea mays CRY1 and an Arabidopsis CRY2 constitutively active mutant. The structures form dimers and tetramers whose functional importance is examined in vitro and in vivo with Arabidopsis CRY2. Structure-based analysis suggests that blue light may be perceived by CRY to cause conformational changes, whose precise nature remains to be determined, leading to oligomerization that is essential for downstream signaling. This photoactivation mechanism may be widely used by plant CRYs. Our study reveals a molecular mechanism of plant CRY activation and also paves the way for design of CRY as a more efficient optical switch. | |||||||||
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_30022.map.gz | 5 MB | EMDB map data format | |
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Header (meta data) | emd-30022-v30.xml emd-30022.xml | 13.8 KB 13.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_30022_fsc.xml | 8.6 KB | Display | FSC data file |
Images | emd_30022.png | 51.8 KB | ||
Others | emd_30022_half_map_1.map.gz emd_30022_half_map_2.map.gz | 39.6 MB 39.6 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-30022 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30022 | HTTPS FTP |
-Validation report
Summary document | emd_30022_validation.pdf.gz | 613.5 KB | Display | EMDB validaton report |
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Full document | emd_30022_full_validation.pdf.gz | 613 KB | Display | |
Data in XML | emd_30022_validation.xml.gz | 14.2 KB | Display | |
Data in CIF | emd_30022_validation.cif.gz | 20.2 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30022 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30022 | HTTPS FTP |
-Related structure data
Related structure data | 6lz3MC 6lz7C M: atomic model generated by this map C: citing same article (ref.) |
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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_30022.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.061 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Half map: #1
File | emd_30022_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_30022_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Tetrameric complex of ZmCRY1c
Entire | Name: Tetrameric complex of ZmCRY1c |
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Components |
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-Supramolecule #1: Tetrameric complex of ZmCRY1c
Supramolecule | Name: Tetrameric complex of ZmCRY1c / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: Zea mays (maize) |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
-Macromolecule #1: Cryptochrome2
Macromolecule | Name: Cryptochrome2 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Zea mays (maize) |
Molecular weight | Theoretical: 77.609125 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MRIVVWFRRD LRVEDNPALA AAARAGGEVV PAYVWSPEEE GPYYPGRVSR WWISQSLNHL DASLRRLGAG KLVTRRSADA AVALLQLVR DTGATHVYFN HLYDPISLVR DRRLKEMLAA EGIVVQSFNS DLLYEPWEVV DDEGQPFTMF DPFWNRCLSM P YDPPAPLL ...String: MRIVVWFRRD LRVEDNPALA AAARAGGEVV PAYVWSPEEE GPYYPGRVSR WWISQSLNHL DASLRRLGAG KLVTRRSADA AVALLQLVR DTGATHVYFN HLYDPISLVR DRRLKEMLAA EGIVVQSFNS DLLYEPWEVV DDEGQPFTMF DPFWNRCLSM P YDPPAPLL PPKRINSGDL SMCPSEDLIF EDESERGSNA LLARAWTPGW QNADKALTAF LNGPLADYSV NRKKADSAST SL LSPHLHF GELSVRKVFH LVRMKQLVWS NEGNHAAEES CTLFLRSIGL REYSRYLSFN HPSSHERPLL AHLRFFPWVV DES YFKIWR QGRTGYPLVD AGMRELWATG WLHDRIRVVV ASFFVKVLQL PARWGMKYFW DTLLDADLES DALGWQYITG SLPD GRELD RIDNPQFEGY KFDPHGEYVR RWIPELARLP TEWIHHPWDA PVSVLQAAGI ELGSNYPLPI VELDAAKGRL QAALS EMWQ LEAASRATMN NGTEEGLGDS SEVLFPQELQ MEVDRQPAPA EAAANVHVHV PMPARRRGDQ MVPTMTTSSL NRAGTE VSA DLVVANSEEE DTRAQVPFHA HLHLHPRAEA PPAARRTNNG ARQHDVFQQR RNHRRDALLA PSASEASSSW TGREGAV VP VWSPPAASGH SDAFAADEAD VSSRSYLGRH PQSHRLMNWS QLSQSS |
-Macromolecule #2: FLAVIN-ADENINE DINUCLEOTIDE
Macromolecule | Name: FLAVIN-ADENINE DINUCLEOTIDE / type: ligand / ID: 2 / Number of copies: 4 / Formula: FAD |
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Molecular weight | Theoretical: 785.55 Da |
Chemical component information | ChemComp-FAD: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 49.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: OTHER |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |