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- PDB-6ew6: Crystal structure of the BCL6 BTB domain in complex with anilinop... -

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Basic information

Entry
Database: PDB / ID: 6ew6
TitleCrystal structure of the BCL6 BTB domain in complex with anilinopyrimidine ligand
ComponentsB-cell lymphoma 6 protein
KeywordsTRANSFERASE / KINASE
Function / homology
Function and homology information


regulation of memory T cell differentiation / negative regulation of mitotic cell cycle DNA replication / intronic transcription regulatory region sequence-specific DNA binding / negative regulation of isotype switching to IgE isotypes / negative regulation of plasma cell differentiation / negative regulation of T-helper 2 cell differentiation / isotype switching to IgE isotypes / negative regulation of mononuclear cell proliferation / negative regulation of mast cell cytokine production / regulation of germinal center formation ...regulation of memory T cell differentiation / negative regulation of mitotic cell cycle DNA replication / intronic transcription regulatory region sequence-specific DNA binding / negative regulation of isotype switching to IgE isotypes / negative regulation of plasma cell differentiation / negative regulation of T-helper 2 cell differentiation / isotype switching to IgE isotypes / negative regulation of mononuclear cell proliferation / negative regulation of mast cell cytokine production / regulation of germinal center formation / plasma cell differentiation / paraspeckles / germinal center formation / pyramidal neuron differentiation / regulation of immune system process / type 2 immune response / positive regulation of regulatory T cell differentiation / T-helper 2 cell differentiation / negative regulation of B cell apoptotic process / positive regulation of cell motility / negative regulation of Rho protein signal transduction / FOXO-mediated transcription of cell death genes / negative regulation of cell-matrix adhesion / regulation of T cell proliferation / negative regulation of Notch signaling pathway / TP53 regulates transcription of several additional cell death genes whose specific roles in p53-dependent apoptosis remain uncertain / B cell proliferation / regulation of cell differentiation / negative regulation of cellular senescence / erythrocyte development / Rho protein signal transduction / regulation of immune response / heterochromatin formation / positive regulation of B cell proliferation / regulation of cytokine production / positive regulation of neuron differentiation / cell-matrix adhesion / transcription corepressor binding / cell motility / protein localization / cell morphogenesis / negative regulation of cell growth / chromatin DNA binding / DNA-binding transcription repressor activity, RNA polymerase II-specific / sequence-specific double-stranded DNA binding / regulation of cell population proliferation / regulation of inflammatory response / actin cytoskeleton organization / spermatogenesis / Interleukin-4 and Interleukin-13 signaling / DNA-binding transcription factor binding / sequence-specific DNA binding / transcription by RNA polymerase II / inflammatory response / positive regulation of apoptotic process / RNA polymerase II cis-regulatory region sequence-specific DNA binding / DNA-binding transcription factor activity / negative regulation of DNA-templated transcription / DNA damage response / chromatin binding / nucleolus / Golgi apparatus / negative regulation of transcription by RNA polymerase II / nucleoplasm / identical protein binding / metal ion binding / nucleus
Similarity search - Function
Potassium Channel Kv1.1; Chain A / Potassium Channel Kv1.1; Chain A / BTB/POZ domain / BTB domain profile. / Zinc finger, C2H2 type / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / zinc finger / Zinc finger C2H2 type domain profile. / Zinc finger C2H2 superfamily ...Potassium Channel Kv1.1; Chain A / Potassium Channel Kv1.1; Chain A / BTB/POZ domain / BTB domain profile. / Zinc finger, C2H2 type / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / zinc finger / Zinc finger C2H2 type domain profile. / Zinc finger C2H2 superfamily / SKP1/BTB/POZ domain superfamily / Zinc finger C2H2 type domain signature. / Zinc finger C2H2-type / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
~{N}2-(2-chlorophenyl)-1,3,5-triazine-2,4-diamine / B-cell lymphoma 6 protein
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.39 Å
AuthorsRobb, G. / Ferguson, A. / Hargreaves, D.
CitationJournal: ACS Chem. Biol. / Year: 2018
Title: Development of a Novel B-Cell Lymphoma 6 (BCL6) PROTAC To Provide Insight into Small Molecule Targeting of BCL6.
Authors: McCoull, W. / Cheung, T. / Anderson, E. / Barton, P. / Burgess, J. / Byth, K. / Cao, Q. / Castaldi, M.P. / Chen, H. / Chiarparin, E. / Carbajo, R.J. / Code, E. / Cowan, S. / Davey, P.R. / ...Authors: McCoull, W. / Cheung, T. / Anderson, E. / Barton, P. / Burgess, J. / Byth, K. / Cao, Q. / Castaldi, M.P. / Chen, H. / Chiarparin, E. / Carbajo, R.J. / Code, E. / Cowan, S. / Davey, P.R. / Ferguson, A.D. / Fillery, S. / Fuller, N.O. / Gao, N. / Hargreaves, D. / Howard, M.R. / Hu, J. / Kawatkar, A. / Kemmitt, P.D. / Leo, E. / Molina, D.M. / O'Connell, N. / Petteruti, P. / Rasmusson, T. / Raubo, P. / Rawlins, P.B. / Ricchiuto, P. / Robb, G.R. / Schenone, M. / Waring, M.J. / Zinda, M. / Fawell, S. / Wilson, D.M.
History
DepositionNov 3, 2017Deposition site: PDBE / Processing site: PDBE
Revision 1.0Oct 24, 2018Provider: repository / Type: Initial release
Revision 1.1Oct 31, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.journal_abbrev / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Nov 28, 2018Group: Data collection / Database references / Category: citation / citation_author / pdbx_database_proc
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.3May 8, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: B-cell lymphoma 6 protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)14,4052
Polymers14,1831
Non-polymers2221
Water1,09961
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area0 Å2
ΔGint0 kcal/mol
Surface area8400 Å2
MethodPISA
Unit cell
Length a, b, c (Å)30.540, 73.010, 53.540
Angle α, β, γ (deg.)90.00, 104.23, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein B-cell lymphoma 6 protein / / BCL-6 / B-cell lymphoma 5 protein / BCL-5 / Protein LAZ-3 / Zinc finger and BTB domain-containing ...BCL-6 / B-cell lymphoma 5 protein / BCL-5 / Protein LAZ-3 / Zinc finger and BTB domain-containing protein 27 / Zinc finger protein 51


Mass: 14183.435 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BCL6, BCL5, LAZ3, ZBTB27, ZNF51
Production host: Escherichia coli-Pichia pastoris shuttle vector pPpARG4 (others)
References: UniProt: P41182
#2: Chemical ChemComp-C0H / ~{N}2-(2-chlorophenyl)-1,3,5-triazine-2,4-diamine


Mass: 221.646 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H8ClN5
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 61 / 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: 2.04 Å3/Da / Density % sol: 39.7 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / Details: unknown

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 17-ID / Wavelength: 0.9 Å
DetectorType: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: Jun 3, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9 Å / Relative weight: 1
ReflectionResolution: 1.39→36.51 Å / Num. obs: 22114 / % possible obs: 96.8 % / Redundancy: 4.1 % / Biso Wilson estimate: 18.17 Å2 / Net I/σ(I): 19.1
Reflection shellResolution: 1.39→1.47 Å / Redundancy: 4.1 % / Mean I/σ(I) obs: 3.2 / % possible all: 95.2

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Processing

Software
NameVersionClassification
XDSdata reduction
SCALAdata scaling
BUSTER2.11.6refinement
PHASERphasing
RefinementResolution: 1.39→14.93 Å / Cor.coef. Fo:Fc: 0.955 / Cor.coef. Fo:Fc free: 0.947 / Rfactor Rfree error: 0 / SU R Cruickshank DPI: 0.075 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.065 / SU Rfree Blow DPI: 0.068 / SU Rfree Cruickshank DPI: 0.069
RfactorNum. reflection% reflectionSelection details
Rfree0.222 1133 5.13 %RANDOM
Rwork0.19 ---
obs0.191 22096 96.6 %-
Displacement parametersBiso mean: 22.38 Å2
Baniso -1Baniso -2Baniso -3
1-1.3659 Å20 Å2-1.8345 Å2
2--1.7822 Å20 Å2
3----3.1481 Å2
Refine analyzeLuzzati coordinate error obs: 0.19 Å
Refinement stepCycle: LAST / Resolution: 1.39→14.93 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms992 0 15 61 1068
Refine LS restraints
Refine-IDTypeDev idealNumberRestraint functionWeight
X-RAY DIFFRACTIONt_bond_d0.012083HARMONIC2
X-RAY DIFFRACTIONt_angle_deg1.053758HARMONIC2
X-RAY DIFFRACTIONt_dihedral_angle_d476SINUSOIDAL2
X-RAY DIFFRACTIONt_incorr_chiral_ct
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes26HARMONIC2
X-RAY DIFFRACTIONt_gen_planes309HARMONIC5
X-RAY DIFFRACTIONt_it2083HARMONIC20
X-RAY DIFFRACTIONt_nbd
X-RAY DIFFRACTIONt_omega_torsion3.4
X-RAY DIFFRACTIONt_other_torsion14.17
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_chiral_improper_torsion140SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact2307SEMIHARMONIC4
LS refinement shellResolution: 1.39→1.46 Å / Rfactor Rfree error: 0 / Total num. of bins used: 11
RfactorNum. reflection% reflection
Rfree0.259 157 5.47 %
Rwork0.239 2711 -
all0.241 2868 -
obs--94.67 %

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