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- EMDB-0586: Cryo-EM structure of the centromeric nucleosome with native alpha... -
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Basic information
Entry | Database: EMDB / ID: EMD-0586 | |||||||||
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Title | Cryo-EM structure of the centromeric nucleosome with native alpha satellite DNA | |||||||||
![]() | Main EM map after sharpening | |||||||||
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![]() | CENP-A / Centromere / Native alpha satellite DNA / nucleosome / NUCLEAR PROTEIN | |||||||||
Function / homology | ![]() CENP-A containing chromatin assembly / protein localization to chromosome, centromeric region / kinetochore assembly / condensed chromosome, centromeric region / establishment of mitotic spindle orientation / chromosome, centromeric region / mitotic cytokinesis / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin ...CENP-A containing chromatin assembly / protein localization to chromosome, centromeric region / kinetochore assembly / condensed chromosome, centromeric region / establishment of mitotic spindle orientation / chromosome, centromeric region / mitotic cytokinesis / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / pericentric heterochromatin / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / nucleosomal DNA binding / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Resolution of Sister Chromatid Cohesion / Inhibition of DNA recombination at telomere / Meiotic synapsis / telomere organization / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / SIRT1 negatively regulates rRNA expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / innate immune response in mucosa / PRC2 methylates histones and DNA / Defective pyroptosis / HDACs deacetylate histones / RHO GTPases Activate Formins / RNA Polymerase I Promoter Escape / lipopolysaccharide binding / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / heterochromatin formation / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Metalloprotease DUBs / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / Separation of Sister Chromatids / structural constituent of chromatin / UCH proteinases / antimicrobial humoral immune response mediated by antimicrobial peptide / nucleosome / nucleosome assembly / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / RUNX1 regulates transcription of genes involved in differentiation of HSCs / HATs acetylate histones / Processing of DNA double-strand break ends / antibacterial humoral response / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / defense response to Gram-negative bacterium / Estrogen-dependent gene expression / killing of cells of another organism / chromosome, telomeric region / Ub-specific processing proteases / defense response to Gram-positive bacterium / protein heterodimerization activity / Amyloid fiber formation / negative regulation of cell population proliferation / chromatin binding / protein-containing complex / DNA binding / RNA binding / extracellular space / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus / cytosol Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.395 Å | |||||||||
![]() | Zhou B-R | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Atomic resolution cryo-EM structure of a native-like CENP-A nucleosome aided by an antibody fragment. Authors: Bing-Rui Zhou / K N Sathish Yadav / Mario Borgnia / Jingjun Hong / Baohua Cao / Ada L Olins / Donald E Olins / Yawen Bai / Ping Zhang / ![]() Abstract: Genomic DNA in eukaryotes is organized into chromatin through association with core histones to form nucleosomes, each distinguished by their DNA sequences and histone variants. Here, we used a ...Genomic DNA in eukaryotes is organized into chromatin through association with core histones to form nucleosomes, each distinguished by their DNA sequences and histone variants. Here, we used a single-chain antibody fragment (scFv) derived from the anti-nucleosome antibody mAb PL2-6 to stabilize human CENP-A nucleosome containing a native α-satellite DNA and solved its structure by the cryo-electron microscopy (cryo-EM) to 2.6 Å resolution. In comparison, the corresponding cryo-EM structure of the free CENP-A nucleosome could only reach 3.4 Å resolution. We find that scFv binds to a conserved acidic patch on the histone H2A-H2B dimer without perturbing the nucleosome structure. Our results provide an atomic resolution cryo-EM structure of a nucleosome and insight into the structure and function of the CENP-A nucleosome. The scFv approach is applicable to the structural determination of other native-like nucleosomes with distinct DNA sequences. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 59.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 18.3 KB 18.3 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 9.2 KB | Display | ![]() |
Images | ![]() | 241.9 KB | ||
Filedesc metadata | ![]() | 6.8 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6o1dMC ![]() 8938C ![]() 8945C ![]() 8949C ![]() 6dztC ![]() 6e0cC ![]() 6e0pC C: citing same article ( M: atomic model generated by this map |
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Similar structure data |
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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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Annotation | Main EM map after sharpening | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.84875 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : CENP-A nucleosome with native alpha satellite DNA sequence
Entire | Name: CENP-A nucleosome with native alpha satellite DNA sequence |
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Components |
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-Supramolecule #1: CENP-A nucleosome with native alpha satellite DNA sequence
Supramolecule | Name: CENP-A nucleosome with native alpha satellite DNA sequence type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Histone H3-like centromeric protein A
Macromolecule | Name: Histone H3-like centromeric protein A / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 18.038818 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGSSHHHHHH SSGLPRSHMG PRRRSRKPEA PRRRSPSPTP TPGPSRRGPS LGASSHQHSR RRQGWLKEIR KLQKSTHLLI RKLPFSRLA REICVKFTRG VDFNWQAQAL LALQEAAEAF LVHLFEDAYL LTLHAGRVTL FPKDVQLARR IRGLEEGLG UniProtKB: Histone H3-like centromeric protein A |
-Macromolecule #2: Histone H4
Macromolecule | Name: Histone H4 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 11.394426 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSGRGKGGKG LGKGGAKRHR KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVY ALKRQGRTLY GFGG UniProtKB: Histone H4 |
-Macromolecule #3: Histone H2A type 1-B/E
Macromolecule | Name: Histone H2A type 1-B/E / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 14.165551 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSGRGKQGGK ARAKAKTRSS RAGLQFPVGR VHRLLRKGNY SERVGAGAPV YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAIR NDEELNKLLG RVTIAQGGVL PNIQAVLLPK KTESHHKAKG K UniProtKB: Histone H2A type 1-B/E |
-Macromolecule #4: Histone H2B type 1-J
Macromolecule | Name: Histone H2B type 1-J / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 13.935239 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MPEPAKSAPA PKKGSKKAVT KAQKKDGKKR KRSRKESYSI YVYKVLKQVH PDTGISSKAM GIMNSFVNDI FERIAGEASR LAHYNKRST ITSREIQTAV RLLLPGELAK HAVSEGTKAV TKYTSAK UniProtKB: Histone H2B type 1-J |
-Macromolecule #5: DNA (145-MER)
Macromolecule | Name: DNA (145-MER) / type: dna / ID: 5 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 44.539535 KDa |
Sequence | String: (DA)(DT)(DC)(DA)(DA)(DT)(DA)(DT)(DC)(DC) (DA)(DC)(DC)(DT)(DG)(DC)(DA)(DG)(DA)(DT) (DT)(DC)(DT)(DA)(DC)(DC)(DA)(DA)(DA) (DA)(DG)(DT)(DG)(DT)(DA)(DT)(DT)(DT)(DG) (DG) (DA)(DA)(DA)(DC)(DT)(DG) ...String: (DA)(DT)(DC)(DA)(DA)(DT)(DA)(DT)(DC)(DC) (DA)(DC)(DC)(DT)(DG)(DC)(DA)(DG)(DA)(DT) (DT)(DC)(DT)(DA)(DC)(DC)(DA)(DA)(DA) (DA)(DG)(DT)(DG)(DT)(DA)(DT)(DT)(DT)(DG) (DG) (DA)(DA)(DA)(DC)(DT)(DG)(DC)(DT) (DC)(DC)(DA)(DT)(DC)(DA)(DA)(DA)(DA)(DG) (DG)(DC) (DA)(DT)(DG)(DT)(DT)(DC)(DA) (DG)(DC)(DT)(DC)(DT)(DG)(DT)(DG)(DA)(DG) (DT)(DG)(DA) (DA)(DA)(DC)(DT)(DC)(DC) (DA)(DT)(DC)(DA)(DT)(DC)(DA)(DC)(DA)(DA) (DA)(DG)(DA)(DA) (DT)(DA)(DT)(DT)(DC) (DT)(DG)(DA)(DG)(DA)(DA)(DT)(DG)(DC)(DT) (DT)(DC)(DC)(DG)(DT) (DT)(DT)(DG)(DC) (DC)(DT)(DT)(DT)(DT)(DA)(DT)(DA)(DT)(DG) (DA)(DA)(DC)(DT)(DT)(DC) (DC)(DT)(DG) (DA)(DT) |
-Macromolecule #6: DNA (145-MER)
Macromolecule | Name: DNA (145-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 44.948793 KDa |
Sequence | String: (DA)(DT)(DC)(DA)(DG)(DG)(DA)(DA)(DG)(DT) (DT)(DC)(DA)(DT)(DA)(DT)(DA)(DA)(DA)(DA) (DG)(DG)(DC)(DA)(DA)(DA)(DC)(DG)(DG) (DA)(DA)(DG)(DC)(DA)(DT)(DT)(DC)(DT)(DC) (DA) (DG)(DA)(DA)(DT)(DA)(DT) ...String: (DA)(DT)(DC)(DA)(DG)(DG)(DA)(DA)(DG)(DT) (DT)(DC)(DA)(DT)(DA)(DT)(DA)(DA)(DA)(DA) (DG)(DG)(DC)(DA)(DA)(DA)(DC)(DG)(DG) (DA)(DA)(DG)(DC)(DA)(DT)(DT)(DC)(DT)(DC) (DA) (DG)(DA)(DA)(DT)(DA)(DT)(DT)(DC) (DT)(DT)(DT)(DG)(DT)(DG)(DA)(DT)(DG)(DA) (DT)(DG) (DG)(DA)(DG)(DT)(DT)(DT)(DC) (DA)(DC)(DT)(DC)(DA)(DC)(DA)(DG)(DA)(DG) (DC)(DT)(DG) (DA)(DA)(DC)(DA)(DT)(DG) (DC)(DC)(DT)(DT)(DT)(DT)(DG)(DA)(DT)(DG) (DG)(DA)(DG)(DC) (DA)(DG)(DT)(DT)(DT) (DC)(DC)(DA)(DA)(DA)(DT)(DA)(DC)(DA)(DC) (DT)(DT)(DT)(DT)(DG) (DG)(DT)(DA)(DG) (DA)(DA)(DT)(DC)(DT)(DG)(DC)(DA)(DG)(DG) (DT)(DG)(DG)(DA)(DT)(DA) (DT)(DT)(DG) (DA)(DT) |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 1.5 mg/mL |
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Buffer | pH: 7.4 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 70 % / Instrument: FEI VITROBOT MARK IV / Details: blot for 2.5 sec before plunging. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Digitization - Frames/image: 2-38 / Number grids imaged: 1 / Number real images: 1256 / Average exposure time: 15.2 sec. / Average electron dose: 40.0 e/Å2 Details: Images were collected in movie-mode at 38 frames over 15.2 seconds |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |