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- EMDB-37149: Structure of H1.2 bound to the nucleosome -

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Basic information

Entry
Database: EMDB / ID: EMD-37149
TitleStructure of H1.2 bound to the nucleosome
Map data
Sample
  • Complex: H1.2 bound to the nucleosome
    • Protein or peptide: Histone H3.1
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A type 1-B/E
    • Protein or peptide: Histone H2B type 1-J
    • DNA: DNA (193-MER)
    • DNA: DNA (193-MER)
    • Protein or peptide: Histone H1.2
KeywordsNucleosome / Chromatin / DNA / H1.2 / Complex / DNA BINDING PROTEIN
Function / homology
Function and homology information


negative regulation of DNA recombination / Apoptosis induced DNA fragmentation / chromosome condensation / nucleosomal DNA binding / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus ...negative regulation of DNA recombination / Apoptosis induced DNA fragmentation / chromosome condensation / nucleosomal DNA binding / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / negative regulation of tumor necrosis factor-mediated signaling pathway / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Inhibition of DNA recombination at telomere / Meiotic synapsis / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / innate immune response in mucosa / SUMOylation of chromatin organization proteins / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / epigenetic regulation of gene expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / lipopolysaccharide binding / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / euchromatin / G2/M DNA damage checkpoint / HDMs demethylate histones / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / chromatin DNA binding / Pre-NOTCH Transcription and Translation / Metalloprotease DUBs / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / HCMV Early Events / antimicrobial humoral immune response mediated by antimicrobial peptide / structural constituent of chromatin / antibacterial humoral response / UCH proteinases / nucleosome / heterochromatin formation / E3 ubiquitin ligases ubiquitinate target proteins / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / double-stranded DNA binding / defense response to Gram-negative bacterium / Oxidative Stress Induced Senescence / gene expression / killing of cells of another organism / Estrogen-dependent gene expression / chromosome, telomeric region / defense response to Gram-positive bacterium / Ub-specific processing proteases / cadherin binding / Amyloid fiber formation / protein heterodimerization activity / negative regulation of cell population proliferation / negative regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / extracellular space / RNA binding / extracellular exosome / extracellular region / nucleoplasm / nucleus / membrane / cytosol
Similarity search - Function
Linker histone H1/H5 / linker histone H1 and H5 family / Linker histone H1/H5, domain H15 / Linker histone H1/H5 globular (H15) domain profile. / Domain in histone families 1 and 5 / : / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site ...Linker histone H1/H5 / linker histone H1 and H5 family / Linker histone H1/H5, domain H15 / Linker histone H1/H5 globular (H15) domain profile. / Domain in histone families 1 and 5 / : / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone H2A / Histone 2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily
Similarity search - Domain/homology
Histone H2A type 1-B/E / Histone H2B type 1-J / Histone H1.2 / Histone H4 / Histone H3.1
Similarity search - Component
Biological speciesHomo sapiens (human) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.0 Å
AuthorsKujirai T / Echigoya K / Takizawa Y / Kurumizaka H
Funding support Japan, 8 items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)JP20H03201 Japan
Japan Society for the Promotion of Science (JSPS)JP20H05690 Japan
Japan Society for the Promotion of Science (JSPS)JP22K15033 Japan
Japan Society for the Promotion of Science (JSPS)JP23H05475 Japan
Japan Science and TechnologyJPMJER1901 Japan
Japan Agency for Medical Research and Development (AMED)JP22ama121009 Japan
Japan Society for the Promotion of Science (JSPS)JP22K06098 Japan
Japan Society for the Promotion of Science (JSPS)JP22KJ0871 Japan
CitationJournal: Nat Struct Mol Biol / Year: 2025
Title: Structural insights into how DEK nucleosome binding facilitates H3K27 trimethylation in chromatin.
Authors: Tomoya Kujirai / Kenta Echigoya / Yusuke Kishi / Mai Saeki / Tomoko Ito / Junko Kato / Lumi Negishi / Hiroshi Kimura / Hiroshi Masumoto / Yoshimasa Takizawa / Yukiko Gotoh / Hitoshi Kurumizaka /
Abstract: Structural diversity of the nucleosome affects chromatin conformations and regulates eukaryotic genome functions. Here we identify DEK, whose function is unknown, as a nucleosome-binding protein. In ...Structural diversity of the nucleosome affects chromatin conformations and regulates eukaryotic genome functions. Here we identify DEK, whose function is unknown, as a nucleosome-binding protein. In embryonic neural progenitor cells, DEK colocalizes with H3 K27 trimethylation (H3K27me3), the facultative heterochromatin mark. DEK stimulates the methyltransferase activity of Polycomb repressive complex 2 (PRC2), which is responsible for H3K27me3 deposition in vitro. Cryo-electron microscopy structures of the DEK-nucleosome complexes reveal that DEK binds the nucleosome by its tripartite DNA-binding mode on the dyad and linker DNAs and interacts with the nucleosomal acidic patch by its newly identified histone-binding region. The DEK-nucleosome interaction mediates linker DNA reorientation and induces chromatin compaction, which may facilitate PRC2 activation. These findings provide mechanistic insights into chromatin structure-mediated gene regulation by DEK.
History
DepositionAug 11, 2023-
Header (metadata) releaseMar 12, 2025-
Map releaseMar 12, 2025-
UpdateMar 12, 2025-
Current statusMar 12, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_37149.png

Downloads & links

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Map

FileDownload / File: emd_37149.map.gz / Format: CCP4 / Size: 30.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 200 pix.
= 210. Å		1.05 Å/pix.
x 200 pix.
= 210. Å		1.05 Å/pix.
x 200 pix.
= 210. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.05 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.008
Minimum - Maximum-0.024023894 - 0.057020534
Average (Standard dev.)0.00048432834 (±0.0030399787)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions200200200
Spacing200200200
CellA=B=C: 209.99998 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_37149_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_37149_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : H1.2 bound to the nucleosome

EntireName: H1.2 bound to the nucleosome
Components
  • Complex: H1.2 bound to the nucleosome
    • Protein or peptide: Histone H3.1
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A type 1-B/E
    • Protein or peptide: Histone H2B type 1-J
    • DNA: DNA (193-MER)
    • DNA: DNA (193-MER)
    • Protein or peptide: Histone H1.2

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Supramolecule #1: H1.2 bound to the nucleosome

SupramoleculeName: H1.2 bound to the nucleosome / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#7
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Histone H3.1

MacromoleculeName: Histone H3.1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 15.719445 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GSHMARTKQT ARKSTGGKAP RKQLATKAAR KSAPATGGVK KPHRYRPGTV ALREIRRYQK STELLIRKLP FQRLVREIAQ DFKTDLRFQ SSAVMALQEA CEAYLVGLFE DTNLCAIHAK RVTIMPKDIQ LARRIRGERA

UniProtKB: Histone H3.1

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Macromolecule #2: Histone H4

MacromoleculeName: Histone H4 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.676703 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GSHMSGRGKG GKGLGKGGAK RHRKVLRDNI QGITKPAIRR LARRGGVKRI SGLIYEETRG VLKVFLENVI RDAVTYTEHA KRKTVTAMD VVYALKRQGR TLYGFGG

UniProtKB: Histone H4

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Macromolecule #3: Histone H2A type 1-B/E

MacromoleculeName: Histone H2A type 1-B/E / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.447825 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GSHMSGRGKQ GGKARAKAKT RSSRAGLQFP VGRVHRLLRK GNYSERVGAG APVYLAAVLE YLTAEILELA GNAARDNKKT RIIPRHLQL AIRNDEELNK LLGRVTIAQG GVLPNIQAVL LPKKTESHHK AKGK

UniProtKB: Histone H2A type 1-B/E

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Macromolecule #4: Histone H2B type 1-J

MacromoleculeName: Histone H2B type 1-J / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.217516 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GSHMPEPAKS APAPKKGSKK AVTKAQKKDG KKRKRSRKES YSIYVYKVLK QVHPDTGISS KAMGIMNSFV NDIFERIAGE ASRLAHYNK RSTITSREIQ TAVRLLLPGE LAKHAVSEGT KAVTKYTSAK

UniProtKB: Histone H2B type 1-J

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Macromolecule #7: Histone H1.2

MacromoleculeName: Histone H1.2 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.15684 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MSETAPAAPA AAPPAEKAPV KKKAAKKAGG TPRKASGPPV SELITKAVAA SKERSGVSLA ALKKALAAAG YDVEKNNSRI KLGLKSLVS KGTLVQTKGT GASGSFKLNK KAASGEAKPK VKKAGGTKPK KPVGAAKKPK KAAGGATPKK SAKKTPKKAK K PAAATVTK ...String:
MSETAPAAPA AAPPAEKAPV KKKAAKKAGG TPRKASGPPV SELITKAVAA SKERSGVSLA ALKKALAAAG YDVEKNNSRI KLGLKSLVS KGTLVQTKGT GASGSFKLNK KAASGEAKPK VKKAGGTKPK KPVGAAKKPK KAAGGATPKK SAKKTPKKAK K PAAATVTK KVAKSPKKAK VAKPKKAAKS AAKAVKPKAA KPKVVKPKKA APKKKLEVLF Q

UniProtKB: Histone H1.2

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Macromolecule #5: DNA (193-MER)

MacromoleculeName: DNA (193-MER) / type: dna / ID: 5 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 59.589984 KDa
SequenceString: (DA)(DT)(DC)(DA)(DC)(DG)(DT)(DA)(DA)(DT) (DA)(DT)(DT)(DG)(DG)(DC)(DC)(DA)(DG)(DC) (DT)(DA)(DG)(DG)(DA)(DT)(DC)(DA)(DC) (DA)(DA)(DT)(DC)(DC)(DC)(DG)(DG)(DT)(DG) (DC) (DC)(DG)(DA)(DG)(DG)(DC) ...String:
(DA)(DT)(DC)(DA)(DC)(DG)(DT)(DA)(DA)(DT) (DA)(DT)(DT)(DG)(DG)(DC)(DC)(DA)(DG)(DC) (DT)(DA)(DG)(DG)(DA)(DT)(DC)(DA)(DC) (DA)(DA)(DT)(DC)(DC)(DC)(DG)(DG)(DT)(DG) (DC) (DC)(DG)(DA)(DG)(DG)(DC)(DC)(DG) (DC)(DT)(DC)(DA)(DA)(DT)(DT)(DG)(DG)(DT) (DC)(DG) (DT)(DA)(DG)(DA)(DC)(DA)(DG) (DC)(DT)(DC)(DT)(DA)(DG)(DC)(DA)(DC)(DC) (DG)(DC)(DT) (DT)(DA)(DA)(DA)(DC)(DG) (DC)(DA)(DC)(DG)(DT)(DA)(DC)(DG)(DG)(DA) (DA)(DT)(DC)(DC) (DG)(DT)(DA)(DC)(DG) (DT)(DG)(DC)(DG)(DT)(DT)(DT)(DA)(DA)(DG) (DC)(DG)(DG)(DT)(DG) (DC)(DT)(DA)(DG) (DA)(DG)(DC)(DT)(DG)(DT)(DC)(DT)(DA)(DC) (DG)(DA)(DC)(DC)(DA)(DA) (DT)(DT)(DG) (DA)(DG)(DC)(DG)(DG)(DC)(DC)(DT)(DC)(DG) (DG)(DC)(DA)(DC)(DC)(DG)(DG) (DG)(DA) (DT)(DT)(DG)(DT)(DG)(DA)(DT)(DC)(DC)(DT) (DA)(DG)(DC)(DT)(DG)(DG)(DC)(DC) (DA) (DA)(DT)(DA)(DT)(DT)(DA)(DC)(DG)(DT)(DG) (DA)(DT)

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Macromolecule #6: DNA (193-MER)

MacromoleculeName: DNA (193-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 59.580969 KDa
SequenceString: (DA)(DT)(DC)(DA)(DC)(DG)(DT)(DA)(DA)(DT) (DA)(DT)(DT)(DG)(DG)(DC)(DC)(DA)(DG)(DC) (DT)(DA)(DG)(DG)(DA)(DT)(DC)(DA)(DC) (DA)(DA)(DT)(DC)(DC)(DC)(DG)(DG)(DT)(DG) (DC) (DC)(DG)(DA)(DG)(DG)(DC) ...String:
(DA)(DT)(DC)(DA)(DC)(DG)(DT)(DA)(DA)(DT) (DA)(DT)(DT)(DG)(DG)(DC)(DC)(DA)(DG)(DC) (DT)(DA)(DG)(DG)(DA)(DT)(DC)(DA)(DC) (DA)(DA)(DT)(DC)(DC)(DC)(DG)(DG)(DT)(DG) (DC) (DC)(DG)(DA)(DG)(DG)(DC)(DC)(DG) (DC)(DT)(DC)(DA)(DA)(DT)(DT)(DG)(DG)(DT) (DC)(DG) (DT)(DA)(DG)(DA)(DC)(DA)(DG) (DC)(DT)(DC)(DT)(DA)(DG)(DC)(DA)(DC)(DC) (DG)(DC)(DT) (DT)(DA)(DA)(DA)(DC)(DG) (DC)(DA)(DC)(DG)(DT)(DA)(DC)(DG)(DG)(DA) (DT)(DT)(DC)(DC) (DG)(DT)(DA)(DC)(DG) (DT)(DG)(DC)(DG)(DT)(DT)(DT)(DA)(DA)(DG) (DC)(DG)(DG)(DT)(DG) (DC)(DT)(DA)(DG) (DA)(DG)(DC)(DT)(DG)(DT)(DC)(DT)(DA)(DC) (DG)(DA)(DC)(DC)(DA)(DA) (DT)(DT)(DG) (DA)(DG)(DC)(DG)(DG)(DC)(DC)(DT)(DC)(DG) (DG)(DC)(DA)(DC)(DC)(DG)(DG) (DG)(DA) (DT)(DT)(DG)(DT)(DG)(DA)(DT)(DC)(DC)(DT) (DA)(DG)(DC)(DT)(DG)(DG)(DC)(DC) (DA) (DA)(DT)(DA)(DT)(DT)(DA)(DC)(DG)(DT)(DG) (DA)(DT)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 56.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 4.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 27130
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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