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- PDB-1kx4: X-Ray Structure of the Nucleosome Core Particle, NCP146b, at 2.6 ... -

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Basic information

Entry
Database: PDB / ID: 1kx4
TitleX-Ray Structure of the Nucleosome Core Particle, NCP146b, at 2.6 A Resolution
Components
  • DNA (5'(ATCTCCAAATATCCCTTGCGGATCGTAGAAAAAGTGTGTCAAACTGCGCTATCAAAGGGAAACTTCAACTGAATTCAGTTGAAGTTTCCCTTTGATAGCGCAGTTTGACACACTTTTTCTACGATCCGCAAGGGATATTTGGAGAT)3')
  • histone H2A.1
  • histone H2B.2
  • histone H3
  • histone H4
KeywordsSTRUCTURAL PROTEIN/DNA / NUCLEOSOME / CHROMATIN / HISTONE / PROTEIN-DNA INTERACTION / NUCLEOPROTEIN / SUPERCOILED DNA / NUCLEOSOME CORE / PROTEIN-DNA COMPLEX / STRUCTURAL PROTEIN-DNA COMPLEX
Function / homology
Function and homology information


chromatin organization => GO:0006325 / : / : / RNA Polymerase I Promoter Opening / RNA Polymerase I Promoter Escape / Assembly of the ORC complex at the origin of replication / Transcriptional regulation by small RNAs / chromatin organization => GO:0006325 / B-WICH complex positively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 ...chromatin organization => GO:0006325 / : / : / RNA Polymerase I Promoter Opening / RNA Polymerase I Promoter Escape / Assembly of the ORC complex at the origin of replication / Transcriptional regulation by small RNAs / chromatin organization => GO:0006325 / B-WICH complex positively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / Chromatin modifying enzymes / Interleukin-7 signaling / HDMs demethylate histones / Senescence-Associated Secretory Phenotype (SASP) / HDACs deacetylate histones / PRC2 methylates histones and DNA / HATs acetylate histones / PKMTs methylate histone lysines / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / RMTs methylate histone arginines / Factors involved in megakaryocyte development and platelet production / Estrogen-dependent gene expression / Oxidative Stress Induced Senescence / DNA replication-dependent chromatin assembly / stem cell population maintenance / nuclear chromosome / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / 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 / 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 / telomere organization / Inhibition of DNA recombination at telomere / Meiotic synapsis / 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 / 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 / Defective pyroptosis / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / DNA-templated transcription initiation / 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 / 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 / Pre-NOTCH Transcription and Translation / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / HCMV Early Events / structural constituent of chromatin / nucleosome / heterochromatin formation / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / gene expression / Estrogen-dependent gene expression / chromosome, telomeric region / protein domain specific binding / protein heterodimerization activity / Amyloid fiber formation / chromatin binding / chromatin / negative regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / RNA binding / extracellular exosome / extracellular region / nucleoplasm / nucleus / membrane
Similarity search - Function
Histone, subunit A / Histone, subunit A / : / 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, subunit A / Histone, subunit A / : / 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 / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
: / DNA / DNA (> 10) / DNA (> 100) / Histone H2B 1.1 / Histone H4 / Histone H2A type 1 / Histone H3.2 / Histone H4 / Histone H3.2
Similarity search - Component
Biological speciesHomo sapiens (human)
Xenopus laevis (African clawed frog)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.6 Å
AuthorsDavey, C.A. / Sargent, D.F. / Luger, K. / Maeder, A.W. / Richmond, T.J.
Citation
Journal: J.Mol.Biol. / Year: 2002
Title: Solvent Mediated Interactions in the Structure of the Nucleosome Core Particle at 1.9 A Resolution
Authors: Davey, C.A. / Sargent, D.F. / Luger, K. / Maeder, A.W. / Richmond, T.J.
#1: Journal: Nature / Year: 1997
Title: Crystal structure of the nucleosome core particle at 2.8 A resolution
Authors: Luger, K. / Maeder, A.W. / Richmond, R.K. / Sargent, D.F. / Richmond, T.J.
History
DepositionJan 31, 2002Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 25, 2002Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
I: DNA (5'(ATCTCCAAATATCCCTTGCGGATCGTAGAAAAAGTGTGTCAAACTGCGCTATCAAAGGGAAACTTCAACTGAATTCAGTTGAAGTTTCCCTTTGATAGCGCAGTTTGACACACTTTTTCTACGATCCGCAAGGGATATTTGGAGAT)3')
J: DNA (5'(ATCTCCAAATATCCCTTGCGGATCGTAGAAAAAGTGTGTCAAACTGCGCTATCAAAGGGAAACTTCAACTGAATTCAGTTGAAGTTTCCCTTTGATAGCGCAGTTTGACACACTTTTTCTACGATCCGCAAGGGATATTTGGAGAT)3')
A: histone H3
B: histone H4
C: histone H2A.1
D: histone H2B.2
E: histone H3
F: histone H4
G: histone H2A.1
H: histone H2B.2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)199,22620
Polymers198,75510
Non-polymers47110
Water7,800433
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)105.300, 175.690, 109.530
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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DNA chain , 1 types, 2 molecules IJ

#1: DNA chain DNA (5'(ATCTCCAAATATCCCTTGCGGATCGTAGAAAAAGTGTGTCAAACTGCGCTATCAAAGGGAAACTTCAACTGAATTCAGTTGAAGTTTCCCTTTGATAGCGCAGTTTGACACACTTTTTCTACGATCCGCAAGGGATATTTGGAGAT)3')


Mass: 45054.840 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Details: palindromic 146 base pair DNA duplex / Source: (gene. exp.) Homo sapiens (human)
Description: DNA SEQUENCE SYNTHESIZED, CLONED, MULTIMERIZED, AND EXCISED FROM PLASMID
Production host: Escherichia coli (E. coli)

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Protein , 4 types, 8 molecules AEBFCGDH

#2: Protein histone H3


Mass: 15303.930 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P16105, UniProt: P84233*PLUS
#3: Protein histone H4


Mass: 11263.231 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02304, UniProt: P62799*PLUS
#4: Protein histone H2A.1


Mass: 13907.163 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P06897
#5: Protein histone H2B.2


Mass: 13848.097 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02281

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Non-polymers , 3 types, 443 molecules

#6: Chemical
ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Mn
#7: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Cl
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 433 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 5

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Sample preparation

CrystalDensity Matthews: 2.51 Å3/Da / Density % sol: 50.93 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 6
Details: manganese chloride, potassium chloride, potassium cacodylate, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Components of the solutions
IDNameCrystal-IDSol-ID
1MGCl211
2KCl11
3potassium cacodylate11
Crystal grow
*PLUS
Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formulaDetails
14 mg/mlprotein1drop
270-85 mM1dropMnCl2
350-60 mM1dropKCl
420 mMpotassium cacodylate1droppH6.0
540-46 mM1reservoirMnCl2
630-40 mM1reservoirKCl
710-20 mMpotassium cacodylate1reservoir

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Data collection

DiffractionMean temperature: 103 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID09 / Wavelength: 0.85 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Jun 2, 1996
RadiationMonochromator: Si 111 CHANNEL / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.85 Å / Relative weight: 1
ReflectionResolution: 2.6→30 Å / Num. all: 67577 / Num. obs: 60481 / % possible obs: 89.5 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Redundancy: 3.7 % / Biso Wilson estimate: 54.8 Å2 / Rmerge(I) obs: 0.072
Reflection shellResolution: 2.6→2.69 Å / Rmerge(I) obs: 0.157 / % possible all: 45.7
Reflection
*PLUS
Lowest resolution: 30 Å
Reflection shell
*PLUS
% possible obs: 45.7 %

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 1AOI

1aoi


Resolution: 2.6→6 Å / Rfactor Rfree error: 0.009 / Data cutoff high absF: 2275168.46 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.3 1043 2 %RANDOM
Rwork0.246 ---
all0.247 52906 --
obs0.247 52906 91.6 %-
Displacement parametersBiso mean: 51.6 Å2
Baniso -1Baniso -2Baniso -3
1-5.75 Å20 Å20 Å2
2--6.4 Å20 Å2
3----12.15 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.44 Å0.35 Å
Luzzati d res low-6 Å
Luzzati sigma a0.2 Å0.12 Å
Refinement stepCycle: LAST / Resolution: 2.6→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6015 5980 10 433 12438
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1
X-RAY DIFFRACTIONc_dihedral_angle_d18.5
X-RAY DIFFRACTIONc_improper_angle_d1
X-RAY DIFFRACTIONc_mcbond_it1.591.5
X-RAY DIFFRACTIONc_mcangle_it2.582
X-RAY DIFFRACTIONc_scbond_it2.072
X-RAY DIFFRACTIONc_scangle_it3.032.5
LS refinement shellResolution: 2.6→2.75 Å / Rfactor Rfree error: 0.032 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.374 134 1.8 %
Rwork0.326 7486 -
obs--79.9 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2DNA-RNA_REP.PARAMDNA-RNA.TOP
X-RAY DIFFRACTION3WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION4ION.PARAMION.TOP
Refinement
*PLUS
Highest resolution: 2.6 Å / Lowest resolution: 6 Å / Rfactor Rfree: 0.3
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_angle_deg0.96
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg18.5
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg1
LS refinement shell
*PLUS
Lowest resolution: 2.68 Å / Rfactor Rfree: 0.361 / Rfactor Rwork: 0.329

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