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- PDB-6au4: Crystal structure of the major quadruplex formed in the human c-M... -

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Basic information

Entry
Database: PDB / ID: 6au4
TitleCrystal structure of the major quadruplex formed in the human c-MYC promoter
ComponentsDNA (5'-D(*TP*GP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*A)-3')
KeywordsDNA / oncogene / quadruplex / c-MYC / promoter
Function / homology: / DNA / DNA (> 10)
Function and homology information
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.35 Å
AuthorsStump, S. / Mou, T.C. / Sprang, S.R. / Natale, N.R. / Beall, H.D.
Funding support United States, 4items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)P20GM103546 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)1P30GM103338 United States
ALSAM Foundation1000233768
National Institutes of Health/National Institute of Environmental Health Sciences (NIH/NIEHS)P20ES017670 United States
CitationJournal: PLoS ONE / Year: 2018
Title: Crystal structure of the major quadruplex formed in the promoter region of the human c-MYC oncogene.
Authors: Stump, S. / Mou, T.C. / Sprang, S.R. / Natale, N.R. / Beall, H.D.
History
DepositionAug 30, 2017Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 12, 2018Provider: repository / Type: Initial release
Revision 1.1Oct 24, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID
Revision 1.2Feb 20, 2019Group: Author supporting evidence / Data collection / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.3Dec 18, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.4Oct 4, 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
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_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_symmetry / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _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.ptnr1_symmetry / _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_symmetry

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: DNA (5'-D(*TP*GP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*A)-3')
B: DNA (5'-D(*TP*GP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*A)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)14,2528
Polymers14,0172
Non-polymers2356
Water28816
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)65.663, 69.811, 32.952
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212

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Components

#1: DNA chain DNA (5'-D(*TP*GP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*GP*GP*GP*TP*GP*GP*GP*TP*AP*A)-3')


Mass: 7008.510 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)
#2: Chemical
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: K
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 16 / 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: 1

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Sample preparation

CrystalDensity Matthews: 2.76 Å3/Da / Density % sol: 55.5 % / Description: Rectangular rod
Crystal growTemperature: 277.15 K / Method: vapor diffusion, hanging drop / pH: 6.5 / Details: 20% MPD 300mM KCl 50mM LiCl 50mM Sodium cacodylate

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL12-2 / Wavelength: 0.979 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Apr 19, 2017
RadiationMonochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 2.35→35.03 Å / Num. obs: 6774 / % possible obs: 99.4 % / Redundancy: 12.6 % / Biso Wilson estimate: 55.55 Å2 / CC1/2: 1 / Rpim(I) all: 0.013 / Net I/σ(I): 34
Reflection shellResolution: 2.35→2.43 Å / Redundancy: 12.9 % / Mean I/σ(I) obs: 4.4 / Num. unique all: 652 / CC1/2: 0.966 / Rpim(I) all: 0.167 / % possible all: 99.7

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Processing

Software
NameVersionClassification
PHENIX(1.10.1_2155: ???)refinement
REFMAC5.8.0171refinement
XDSNov 1, 2016data reduction
XDSNov 1, 2016data scaling
PHASER(1.10.1_2155: ???)phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4WO2, 1XAV

4wo2

1xav


Resolution: 2.35→34.906 Å / SU ML: 0.33 / Cross valid method: FREE R-VALUE / σ(F): 1.36 / Phase error: 31.39
RfactorNum. reflection% reflection
Rfree0.2455 671 10.13 %
Rwork0.2203 --
obs0.2229 6624 98.57 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso mean: 80.2 Å2
Refinement stepCycle: LAST / Resolution: 2.35→34.906 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms0 934 6 16 956
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0091054
X-RAY DIFFRACTIONf_angle_d1.081634
X-RAY DIFFRACTIONf_dihedral_angle_d35.1432
X-RAY DIFFRACTIONf_chiral_restr0.05174
X-RAY DIFFRACTIONf_plane_restr0.00644
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.35-2.53140.33921360.30781159X-RAY DIFFRACTION99
2.5314-2.78610.36891320.27471157X-RAY DIFFRACTION99
2.7861-3.1890.38531320.31181172X-RAY DIFFRACTION98
3.189-4.01680.3291270.25071181X-RAY DIFFRACTION97
4.0168-34.90930.16551440.16791284X-RAY DIFFRACTION100
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
14.7601-2.26510.0857.4603-0.66974.86990.42950.55860.2546-0.7375-0.47070.184-0.2489-0.69210.04230.40810.16080.03440.539-0.02050.4863-9.624212.6054-8.557
26.6722-1.7194-1.35523.5861-0.53813.4962-0.2867-1.30630.29761.17330.56690.1284-0.5182-0.6018-0.14450.60570.30450.04980.7671-0.0520.5406-11.472510.2146-28.656
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1(chain A and resseq 1:22)
2X-RAY DIFFRACTION2(chain B and resseq 1:22)

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