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- PDB-2ym3: Crystal structure of checkpoint kinase 1 (Chk1) in complex with i... -

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Entry
Database: PDB / ID: 2ym3
TitleCrystal structure of checkpoint kinase 1 (Chk1) in complex with inhibitors
ComponentsSERINE/THREONINE-PROTEIN KINASE CHK1
KeywordsTRANSFERASE / DNA REPAIR
Function / homology
Function and homology information


negative regulation of G0 to G1 transition / apoptotic process involved in development / histone H3T11 kinase activity / regulation of mitotic centrosome separation / negative regulation of mitotic nuclear division / mitotic G2/M transition checkpoint / inner cell mass cell proliferation / regulation of double-strand break repair via homologous recombination / nucleus organization / negative regulation of gene expression, epigenetic ...negative regulation of G0 to G1 transition / apoptotic process involved in development / histone H3T11 kinase activity / regulation of mitotic centrosome separation / negative regulation of mitotic nuclear division / mitotic G2/M transition checkpoint / inner cell mass cell proliferation / regulation of double-strand break repair via homologous recombination / nucleus organization / negative regulation of gene expression, epigenetic / Transcriptional Regulation by E2F6 / mitotic G2 DNA damage checkpoint signaling / Presynaptic phase of homologous DNA pairing and strand exchange / replicative senescence / peptidyl-threonine phosphorylation / signal transduction in response to DNA damage / Chk1/Chk2(Cds1) mediated inactivation of Cyclin B:Cdk1 complex / Activation of ATR in response to replication stress / positive regulation of cell cycle / DNA damage checkpoint signaling / regulation of signal transduction by p53 class mediator / replication fork / condensed nuclear chromosome / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / TP53 Regulates Transcription of DNA Repair Genes / cellular response to mechanical stimulus / Signaling by SCF-KIT / G2/M DNA damage checkpoint / G2/M transition of mitotic cell cycle / regulation of cell population proliferation / Processing of DNA double-strand break ends / Regulation of TP53 Activity through Phosphorylation / DNA replication / protein phosphorylation / non-specific serine/threonine protein kinase / protein kinase activity / chromatin remodeling / protein domain specific binding / protein serine kinase activity / DNA repair / intracellular membrane-bounded organelle / protein serine/threonine kinase activity / apoptotic process / DNA damage response / centrosome / chromatin / protein-containing complex / extracellular space / nucleoplasm / ATP binding / nucleus / cytosol / cytoplasm
Similarity search - Function
Checkpoint kinase 1, catalytic domain / Phosphorylase Kinase; domain 1 / Phosphorylase Kinase; domain 1 / Transferase(Phosphotransferase) domain 1 / Transferase(Phosphotransferase); domain 1 / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Protein kinase domain / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site ...Checkpoint kinase 1, catalytic domain / Phosphorylase Kinase; domain 1 / Phosphorylase Kinase; domain 1 / Transferase(Phosphotransferase) domain 1 / Transferase(Phosphotransferase); domain 1 / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Protein kinase domain / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily / 2-Layer Sandwich / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Chem-YM3 / Serine/threonine-protein kinase Chk1
Similarity search - Component
Biological speciesHOMO SAPIENS (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.007 Å
AuthorsReader, J.C. / Matthews, T.P. / Klair, S. / Cheung, K.M.J. / Scanlon, J. / Proisy, N. / Addison, G. / Ellard, J. / Piton, N. / Taylor, S. ...Reader, J.C. / Matthews, T.P. / Klair, S. / Cheung, K.M.J. / Scanlon, J. / Proisy, N. / Addison, G. / Ellard, J. / Piton, N. / Taylor, S. / Cherry, M. / Fisher, M. / Boxall, K. / Burns, S. / Walton, M.I. / Westwood, I.M. / Hayes, A. / Eve, P. / Valenti, M. / Brandon, A.H. / Box, G. / vanMontfort, R.L.M. / Williams, D.H. / Aherne, G.W. / Raynaud, F.I. / Eccles, S.A. / Garrett, M.D. / Collins, I.
Citation
Journal: J.Med.Chem. / Year: 2011
Title: Structure-Guided Evolution of Potent and Selective Chk1 Inhibitors Through Scaffold Morphing.
Authors: Reader, J.C. / Matthews, T.P. / Klair, S. / Cheung, K.M.J. / Scanlon, J. / Proisy, N. / Addison, G. / Ellard, J. / Piton, N. / Taylor, S. / Cherry, M. / Fisher, M. / Boxall, K. / Burns, S. / ...Authors: Reader, J.C. / Matthews, T.P. / Klair, S. / Cheung, K.M.J. / Scanlon, J. / Proisy, N. / Addison, G. / Ellard, J. / Piton, N. / Taylor, S. / Cherry, M. / Fisher, M. / Boxall, K. / Burns, S. / Walton, M.I. / Westwood, I.M. / Hayes, A. / Eve, P. / Valenti, M. / De Haven Brandon, A. / Box, G. / Van Montfort, R.L.M. / Williams, D.H. / Aherne, G.W. / Raynaud, F.I. / Eccles, S.A. / Garrett, M.D. / Collins, I.
#1: Journal: J.Med.Chem. / Year: 2009
Title: Identification of Inhibitors of Checkpoint Kinase 1 Through Template Screening.
Authors: Matthews, T.P. / Klair, S. / Burns, S. / Boxall, K. / Cherry, M. / Fisher, M. / Westwood, I.M. / Walton, M.I. / Mchardy, T. / Cheung, K.J. / Van Montfort, R. / Williams, D. / Aherne, G.W. / ...Authors: Matthews, T.P. / Klair, S. / Burns, S. / Boxall, K. / Cherry, M. / Fisher, M. / Westwood, I.M. / Walton, M.I. / Mchardy, T. / Cheung, K.J. / Van Montfort, R. / Williams, D. / Aherne, G.W. / Garrett, M.D. / Reader, J. / Collins, I.
#2: Journal: Bioorg.Med.Chem.Lett. / Year: 2010
Title: Design and Evaluation of 3,6-Di(Hetero)Aryl Imidazo[1,2-A]Pyrazines as Inhibitors of Checkpoint and Other Kinases.
Authors: Matthews, T.P. / Mchardy, T. / Klair, S. / Boxall, K. / Fisher, M. / Cherry, M. / Allen, C.E. / Addison, G.J. / Ellard, J. / Aherne, G.W. / Westwood, I.M. / Van Montfort, R. / Garrett, M.D. ...Authors: Matthews, T.P. / Mchardy, T. / Klair, S. / Boxall, K. / Fisher, M. / Cherry, M. / Allen, C.E. / Addison, G.J. / Ellard, J. / Aherne, G.W. / Westwood, I.M. / Van Montfort, R. / Garrett, M.D. / Reader, J.C. / Collins, I.
History
DepositionJun 6, 2011Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 11, 2012Provider: repository / Type: Initial release
Revision 1.1Jun 28, 2017Group: Data collection / Category: diffrn_source / Item: _diffrn_source.type
Revision 1.2Dec 20, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _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
A: SERINE/THREONINE-PROTEIN KINASE CHK1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)33,6597
Polymers33,0431
Non-polymers6166
Water3,279182
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)45.050, 65.790, 58.140
Angle α, β, γ (deg.)90.00, 94.25, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein SERINE/THREONINE-PROTEIN KINASE CHK1 / CHECKPOINT KINASE 1


Mass: 33042.988 Da / Num. of mol.: 1 / Fragment: KINASE DOMAIN, RESIDUES 1-289
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): SF9 / Production host: SPODOPTERA FRUGIPERDA (fall armyworm)
References: UniProt: O14757, non-specific serine/threonine protein kinase
#2: Chemical ChemComp-YM3 / ETHYL 4-(2-(AMINOMETHYL)MORPHOLINO)-1H-PYRAZOLO[3,4-B]PYRIDINE-5-CARBOXYLATE


Mass: 305.332 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H19N5O3
#3: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C2H6O2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 182 / 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: 3 Å3/Da / Density % sol: 59 % / Description: NONE
Crystal growDetails: DL-MALIC ACID/PEG3350

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU MICROMAX-007 HF / Wavelength: 1.5418
DetectorType: RIGAKU CCD / Detector: CCD / Date: Sep 29, 2006
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.01→43.5 Å / Num. obs: 21735 / % possible obs: 95.7 % / Observed criterion σ(I): 1.5 / Redundancy: 2.4 % / Biso Wilson estimate: 28.61 Å2 / Rmerge(I) obs: 0.07 / Net I/σ(I): 8.7
Reflection shellResolution: 2.01→2.12 Å / Redundancy: 2.3 % / Rmerge(I) obs: 0.48 / Mean I/σ(I) obs: 1.6 / % possible all: 97.5

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Processing

Software
NameVersionClassification
PHENIX(PHENIX.REFINE)refinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2WMW

2wmw


Resolution: 2.007→24.543 Å / SU ML: 0.19 / σ(F): 1.37 / Phase error: 18.45 / Stereochemistry target values: ML
Details: RESIDUES 1-7, 17-21, 41-50, 77, 78, 271-289 ARE DISORDERED.
RfactorNum. reflection% reflection
Rfree0.2028 1106 5.1 %
Rwork0.1775 --
obs0.1788 21716 95.39 %
Solvent computationShrinkage radii: 0.83 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL / Bsol: 46.307 Å2 / ksol: 0.369 e/Å3
Displacement parametersBiso mean: 36.7 Å2
Baniso -1Baniso -2Baniso -3
1--5.0805 Å20 Å21.0095 Å2
2--2.6035 Å20 Å2
3---2.4769 Å2
Refinement stepCycle: LAST / Resolution: 2.007→24.543 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2018 0 42 182 2242
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0032112
X-RAY DIFFRACTIONf_angle_d0.6972850
X-RAY DIFFRACTIONf_dihedral_angle_d11.894809
X-RAY DIFFRACTIONf_chiral_restr0.048307
X-RAY DIFFRACTIONf_plane_restr0.004362
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.007-2.09830.26241380.24652618X-RAY DIFFRACTION97
2.0983-2.20890.25031310.2092647X-RAY DIFFRACTION98
2.2089-2.34720.20731400.18712626X-RAY DIFFRACTION98
2.3472-2.52830.21041480.18192602X-RAY DIFFRACTION97
2.5283-2.78240.20391500.17092558X-RAY DIFFRACTION96
2.7824-3.18430.21871410.17212572X-RAY DIFFRACTION95
3.1843-4.0090.181460.16252514X-RAY DIFFRACTION93
4.009-24.54460.18721120.1712473X-RAY DIFFRACTION89
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)
10.90290.1447-0.16530.2442-0.1240.07750.12620.6446-0.1083-0.00180.072-0.14470.1284-0.24360.07190.55630.0137-0.04880.4455-0.12210.223911.8278-2.25510.8813
22.08840.1334-0.58731.9084-0.19151.0455-0.03050.062-0.0722-0.1284-0.03470.04880.058-0.08570.00760.08270.01030.00490.06840.00310.080615.58214.577526.7311
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1CHAIN A AND (RESSEQ 8:51)
2X-RAY DIFFRACTION2CHAIN A AND (RESSEQ 52:270)

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