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- EMDB-22691: Active state Dot1 bound to the unacetylated H4 nucleosome -

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Basic information

Entry
Database: EMDB / ID: EMD-22691
TitleActive state Dot1 bound to the unacetylated H4 nucleosome
Map dataActive state Dot1 bound to the H4K16 unacetylated nucleosome
Sample
  • Complex: Active state Dot1 bound to the unacetylated H4 nucleosome
    • Complex: Histones
      • Protein or peptide: Histone H3.2
      • Protein or peptide: Histone H4
      • Protein or peptide: Histone H2A type 1
      • Protein or peptide: Histone H2B 1.1
    • Complex: Histone-lysine N-methyltransferase, H3 lysine-79 specific
      • Protein or peptide: Histone-lysine N-methyltransferase, H3 lysine-79 specific
    • Complex: Polyubiquitin-B
      • Protein or peptide: Ubiquitin
    • Complex: DNA (146-MER)
      • DNA: DNA (146-MER)
      • DNA: DNA (146-MER)
  • Ligand: S-ADENOSYLMETHIONINE
KeywordsStructural Protein/DNA/Transferase / TRANSFERASE / Structural Protein-DNA-Transferase complex
Function / homology
Function and homology information


negative regulation of heterochromatin formation / PKMTs methylate histone lysines / meiotic recombination checkpoint signaling / [histone H3]-lysine79 N-trimethyltransferase / histone H3K79 methyltransferase activity / histone H3K79 trimethyltransferase activity / global genome nucleotide-excision repair / postreplication repair / mitotic intra-S DNA damage checkpoint signaling / recombinational repair ...negative regulation of heterochromatin formation / PKMTs methylate histone lysines / meiotic recombination checkpoint signaling / [histone H3]-lysine79 N-trimethyltransferase / histone H3K79 methyltransferase activity / histone H3K79 trimethyltransferase activity / global genome nucleotide-excision repair / postreplication repair / mitotic intra-S DNA damage checkpoint signaling / recombinational repair / subtelomeric heterochromatin formation / mitotic G1 DNA damage checkpoint signaling / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / TICAM1,TRAF6-dependent induction of TAK1 complex / Negative regulation of FLT3 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Constitutive Signaling by NOTCH1 HD Domain Mutants / TICAM1-dependent activation of IRF3/IRF7 / NOTCH2 Activation and Transmission of Signal to the Nucleus / Regulation of FZD by ubiquitination / APC/C:Cdc20 mediated degradation of Cyclin B / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / APC-Cdc20 mediated degradation of Nek2A / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of innate immune responses to cytosolic DNA / InlA-mediated entry of Listeria monocytogenes into host cells / Regulation of pyruvate metabolism / Downregulation of ERBB2:ERBB3 signaling / NF-kB is activated and signals survival / VLDLR internalisation and degradation / Pexophagy / NRIF signals cell death from the nucleus / Regulation of PTEN localization / Activated NOTCH1 Transmits Signal to the Nucleus / Regulation of BACH1 activity / Translesion synthesis by REV1 / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / MAP3K8 (TPL2)-dependent MAPK1/3 activation / TICAM1, RIP1-mediated IKK complex recruitment / Translesion synthesis by POLK / Downregulation of TGF-beta receptor signaling / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / InlB-mediated entry of Listeria monocytogenes into host cell / Josephin domain DUBs / Regulation of activated PAK-2p34 by proteasome mediated degradation / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / IKK complex recruitment mediated by RIP1 / DNA damage checkpoint signaling / PINK1-PRKN Mediated Mitophagy / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / TNFR1-induced NF-kappa-B signaling pathway / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / TCF dependent signaling in response to WNT / Asymmetric localization of PCP proteins / SCF-beta-TrCP mediated degradation of Emi1 / Regulation of NF-kappa B signaling / NIK-->noncanonical NF-kB signaling / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / activated TAK1 mediates p38 MAPK activation / TNFR2 non-canonical NF-kB pathway / nucleotide-excision repair / Negative regulators of DDX58/IFIH1 signaling / NOTCH3 Activation and Transmission of Signal to the Nucleus / Vpu mediated degradation of CD4 / Assembly of the pre-replicative complex / Deactivation of the beta-catenin transactivating complex / Regulation of signaling by CBL / Degradation of DVL / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / Fanconi Anemia Pathway / Negative regulation of FGFR3 signaling / Peroxisomal protein import / Hh mutants are degraded by ERAD / Degradation of AXIN / Stabilization of p53 / Recognition of DNA damage by PCNA-containing replication complex
Similarity search - Function
Histone H3-K79 methyltransferase, fungi / Histone-lysine N-methyltransferase DOT1 domain / Histone H3-K79 methyltransferase / Histone methylation protein DOT1 / Histone-lysine N-methyltransferase DOT1 (EC 2.1.1.43) domain profile. / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. ...Histone H3-K79 methyltransferase, fungi / Histone-lysine N-methyltransferase DOT1 domain / Histone H3-K79 methyltransferase / Histone methylation protein DOT1 / Histone-lysine N-methyltransferase DOT1 (EC 2.1.1.43) domain profile. / 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 / Histone H4, conserved site / Histone H4 signature. / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / 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 / : / Ubiquitin domain signature. / Ubiquitin conserved site / Ubiquitin domain / Histone-fold / Ubiquitin family / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Ubiquitin-like domain superfamily / S-adenosyl-L-methionine-dependent methyltransferase superfamily
Similarity search - Domain/homology
Histone H2B 1.1 / Histone H2A type 1 / Polyubiquitin-C / Histone H4 / Histone H3.2 / Histone-lysine N-methyltransferase, H3 lysine-79 specific
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast) / Xenopus laevis (African clawed frog) / Homo sapiens (human) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsValencia-Sanchez MI / De Ioannes PE
Funding support United States, 2 items
OrganizationGrant numberCountry
David and Lucile Packard Foundation United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)5R01GM115882-03 United States
CitationJournal: Science / Year: 2021
Title: Regulation of the Dot1 histone H3K79 methyltransferase by histone H4K16 acetylation.
Authors: Marco Igor Valencia-Sánchez / Pablo De Ioannes / Miao Wang / David M Truong / Rachel Lee / Jean-Paul Armache / Jef D Boeke / Karim-Jean Armache /
Abstract: Dot1 (disruptor of telomeric silencing-1), the histone H3 lysine 79 (H3K79) methyltransferase, is conserved throughout evolution, and its deregulation is found in human leukemias. Here, we provide ...Dot1 (disruptor of telomeric silencing-1), the histone H3 lysine 79 (H3K79) methyltransferase, is conserved throughout evolution, and its deregulation is found in human leukemias. Here, we provide evidence that acetylation of histone H4 allosterically stimulates yeast Dot1 in a manner distinct from but coordinating with histone H2B ubiquitination (H2BUb). We further demonstrate that this stimulatory effect is specific to acetylation of lysine 16 (H4K16ac), a modification central to chromatin structure. We provide a mechanism of this histone cross-talk and show that H4K16ac and H2BUb play crucial roles in H3K79 di- and trimethylation in vitro and in vivo. These data reveal mechanisms that control H3K79 methylation and demonstrate how H4K16ac, H3K79me, and H2BUb function together to regulate gene transcription and gene silencing to ensure optimal maintenance and propagation of an epigenetic state.
History
DepositionSep 21, 2020-
Header (metadata) releaseFeb 10, 2021-
Map releaseFeb 10, 2021-
UpdateMar 6, 2024-
Current statusMar 6, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 7
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by cylindrical radius
  • Surface level: 7
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7k6p
  • Surface level: 7
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_22691.png

Downloads & links

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Map

FileDownload / File: emd_22691.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationActive state Dot1 bound to the H4K16 unacetylated nucleosome
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.04 Å/pix.
x 300 pix.
= 310.5 Å		1.04 Å/pix.
x 300 pix.
= 310.5 Å		1.04 Å/pix.
x 300 pix.
= 310.5 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.035 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 7.0 / Movie #1: 7
Minimum - Maximum-19.923698000000002 - 43.890037999999997
Average (Standard dev.)0.004146462 (±1.0146378)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 310.5 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0351.0351.035
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z310.500310.500310.500
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-19.92443.8900.004

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Supplemental data

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Additional map: Back projection in cistem of active state Dot1...

Fileemd_22691_additional_1.map
AnnotationBack projection in cistem of active state Dot1 bound to the H4K16 unacetylated nucleosome
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Unsharpened active state Dot1 bound to the H4K16...

Fileemd_22691_additional_2.map
AnnotationUnsharpened active state Dot1 bound to the H4K16 unacetylated nucleosome
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map active state Dot1 bound to the H4K16 unacetylated nucleosome

Fileemd_22691_half_map_1.map
AnnotationHalf map active state Dot1 bound to the H4K16 unacetylated nucleosome
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map active state Dot1 bound to the H4K16 unacetylated nucleosome

Fileemd_22691_half_map_2.map
AnnotationHalf map active state Dot1 bound to the H4K16 unacetylated nucleosome
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Active state Dot1 bound to the unacetylated H4 nucleosome

EntireName: Active state Dot1 bound to the unacetylated H4 nucleosome
Components
  • Complex: Active state Dot1 bound to the unacetylated H4 nucleosome
    • Complex: Histones
      • Protein or peptide: Histone H3.2
      • Protein or peptide: Histone H4
      • Protein or peptide: Histone H2A type 1
      • Protein or peptide: Histone H2B 1.1
    • Complex: Histone-lysine N-methyltransferase, H3 lysine-79 specific
      • Protein or peptide: Histone-lysine N-methyltransferase, H3 lysine-79 specific
    • Complex: Polyubiquitin-B
      • Protein or peptide: Ubiquitin
    • Complex: DNA (146-MER)
      • DNA: DNA (146-MER)
      • DNA: DNA (146-MER)
  • Ligand: S-ADENOSYLMETHIONINE

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Supramolecule #1: Active state Dot1 bound to the unacetylated H4 nucleosome

SupramoleculeName: Active state Dot1 bound to the unacetylated H4 nucleosome
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#8 / Details: H4K16 acetylated H2BK120 Ubiquitinated H3K79M
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)

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Supramolecule #2: Histones

SupramoleculeName: Histones / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#4
Source (natural)Organism: Xenopus laevis (African clawed frog)

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Supramolecule #3: Histone-lysine N-methyltransferase, H3 lysine-79 specific

SupramoleculeName: Histone-lysine N-methyltransferase, H3 lysine-79 specific
type: complex / ID: 3 / Parent: 1 / Macromolecule list: #7
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)

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Supramolecule #4: Polyubiquitin-B

SupramoleculeName: Polyubiquitin-B / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #8
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #5: DNA (146-MER)

SupramoleculeName: DNA (146-MER) / type: complex / ID: 5 / Parent: 1 / Macromolecule list: #5-#6
Source (natural)Organism: synthetic construct (others)

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Macromolecule #1: Histone H3.2

MacromoleculeName: Histone H3.2 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 11.562554 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
KPHRYRPGTV ALREIRRYQK STELLIRKLP FQRLVREIAQ DFMTDLRFQS SAVMALQEAS EAYLVALFED TNLCAIHAKR VTIMPKDIQ LARRIRGER

UniProtKB: Histone H3.2

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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: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 10.175951 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GGAKRHRKVL RDNIQGITKP AIRRLARRGG VKRISGLIYE ETRGVLKVFL ENVIRDAVTY TEHAKRKTVT AMDVVYALKR QGRTLYGFG G

UniProtKB: Histone H4

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Macromolecule #3: Histone H2A type 1

MacromoleculeName: Histone H2A type 1 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 11.69465 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
AKAKTRSSRA GLQFPVGRVH RLLRKGNYAE RVGAGAPVYL AAVLEYLTAE ILELAGNAAR DNKKTRIIPR HLQLAVRNDE ELNKLLGRV TIAQGGVLPN IQSVLLPK

UniProtKB: Histone H2A type 1

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Macromolecule #4: Histone H2B 1.1

MacromoleculeName: Histone H2B 1.1 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 10.322814 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
TRKESYAIYV YKVLKQVHPD TGISSKAMSI MNSFVNDVFE RIAGEASRLA HYNKRSTITS REIQTAVRLL LPGELAKHAV SEGTKAVTC YTSA

UniProtKB: Histone H2B 1.1

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Macromolecule #7: Histone-lysine N-methyltransferase, H3 lysine-79 specific

MacromoleculeName: Histone-lysine N-methyltransferase, H3 lysine-79 specific
type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO / EC number: [histone H3]-lysine79 N-trimethyltransferase
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 46.686094 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: SSTFVDWNGP CLRLQYPLFD IEYLRSHEIY SGTPIQSISL RTNSPQPTSL TSDNDTSSVT TAKLQSILFS NYMEEYKVDF KRSTAIYNP MSEIGKLIEY SCLVFLPSPY AEQLKETILP DLNASFDNSD TKGFVNAINL YNKMIREIPR QRIIDHLETI D KIPRSFIH ...String:
SSTFVDWNGP CLRLQYPLFD IEYLRSHEIY SGTPIQSISL RTNSPQPTSL TSDNDTSSVT TAKLQSILFS NYMEEYKVDF KRSTAIYNP MSEIGKLIEY SCLVFLPSPY AEQLKETILP DLNASFDNSD TKGFVNAINL YNKMIREIPR QRIIDHLETI D KIPRSFIH DFLHIVYTRS IHPQANKLKH YKAFSNYVYG ELLPNFLSDV YQQCQLKKGD TFMDLGSGVG NCVVQAALEC GC ALSFGCE IMDDASDLTI LQYEELKKRC KLYGMRLNNV EFSLKKSFVD NNRVAELIPQ CDVILVNNFL FDEDLNKKVE KIL QTAKVG CKIISLKSLR SLTYQINFYN VENIFNRLKV QRYDLKEDSV SWTHSGGEYY ISTVMEDVDE SLFSPAARGR RNRG TPVKY M

UniProtKB: Histone-lysine N-methyltransferase, H3 lysine-79 specific

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Macromolecule #8: Ubiquitin

MacromoleculeName: Ubiquitin / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 8.622922 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGKQL EDGRTLSDYN IQKESTLHLV LRLRGC

UniProtKB: Polyubiquitin-C

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Macromolecule #5: DNA (146-MER)

MacromoleculeName: DNA (146-MER) / type: dna / ID: 5 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 44.82457 KDa
SequenceString: (DT)(DC)(DG)(DA)(DG)(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) ...String:
(DT)(DC)(DG)(DA)(DG)(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)(DT)(DC) (DC)(DC)(DC) (DC)(DG)(DC)(DG)(DT)(DT) (DT)(DT)(DA)(DA)(DC)(DC)(DG)(DC)(DC)(DA) (DA)(DG)(DG)(DG) (DG)(DA)(DT)(DT)(DA) (DC)(DT)(DC)(DC)(DC)(DT)(DA)(DG)(DT)(DC) (DT)(DC)(DC)(DA)(DG) (DG)(DC)(DA)(DC) (DG)(DT)(DG)(DT)(DC)(DA)(DG)(DA)(DT)(DA) (DT)(DA)(DT)(DA)(DC)(DA) (DT)(DC)(DC) (DG)(DA)(DT)

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Macromolecule #6: DNA (146-MER)

MacromoleculeName: DNA (146-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 45.304863 KDa
SequenceString: (DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC) (DA)(DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG) (DG)(DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG) (DA) (DG)(DT)(DA)(DA)(DT)(DC) ...String:
(DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC) (DA)(DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG) (DG)(DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG) (DA) (DG)(DT)(DA)(DA)(DT)(DC)(DC)(DC) (DC)(DT)(DT)(DG)(DG)(DC)(DG)(DG)(DT)(DT) (DA)(DA) (DA)(DA)(DC)(DG)(DC)(DG)(DG) (DG)(DG)(DG)(DA)(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)(DC)(DT) (DC)(DG)(DA)

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Macromolecule #9: S-ADENOSYLMETHIONINE

MacromoleculeName: S-ADENOSYLMETHIONINE / type: ligand / ID: 9 / Number of copies: 1 / Formula: SAM
Molecular weightTheoretical: 398.437 Da
Chemical component information

ChemComp-SAM:
S-ADENOSYLMETHIONINE

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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

Concentration0.45 mg/mL
BufferpH: 7
Component:
ConcentrationFormulaName
20.0 mMTrisTris
50.0 mMKClKCl
1.0 mMMgCl2MgCl2
1.0 mMDTTDTT
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec.
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 297 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 4031 / Average exposure time: 8.0 sec. / Average electron dose: 52.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 130000
Sample stageSpecimen 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

Particle selectionNumber selected: 1673215
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

1u2z


Details: 1U2Z 3TU4 1UBQ
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cisTEM (ver. 1.0) / Number images used: 473290
Initial angle assignmentType: OTHER / Software - Name: cryoSPARC (ver. 2.15) / Details: Ab initio in CryoSparc
Final angle assignmentType: PROJECTION MATCHING / Software - Name: cisTEM (ver. 1.0)
Final 3D classificationNumber classes: 3 / Software - Name: cryoSPARC
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial model
PDB IDChain

1u2z

chain_id: A, source_name: PDB, initial_model_type: experimental model

3tu4

source_name: PDB, initial_model_type: experimental model

1ubq

chain_id: A, source_name: PDB, initial_model_type: experimental model
RefinementSpace: REAL / Protocol: OTHER
Output model

PDB-7k6p:
Active state Dot1 bound to the unacetylated H4 nucleosome

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