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- PDB-4bkz: Crystal structure of unphosphorylated Maternal Embryonic Leucine ... -

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Basic information

Entry
Database: PDB / ID: 4bkz
TitleCrystal structure of unphosphorylated Maternal Embryonic Leucine zipper Kinase (MELK) in complex with a benzodipyrazole inhibitor
ComponentsMATERNAL EMBRYONIC LEUCINE ZIPPER KINASE
KeywordsTRANSFERASE
Function / homology
Function and homology information


neural precursor cell proliferation / intrinsic apoptotic signaling pathway in response to oxidative stress / hemopoiesis / non-specific protein-tyrosine kinase / non-membrane spanning protein tyrosine kinase activity / G2/M transition of mitotic cell cycle / cell cortex / protein autophosphorylation / cell population proliferation / non-specific serine/threonine protein kinase ...neural precursor cell proliferation / intrinsic apoptotic signaling pathway in response to oxidative stress / hemopoiesis / non-specific protein-tyrosine kinase / non-membrane spanning protein tyrosine kinase activity / G2/M transition of mitotic cell cycle / cell cortex / protein autophosphorylation / cell population proliferation / non-specific serine/threonine protein kinase / positive regulation of apoptotic process / protein serine kinase activity / protein serine/threonine kinase activity / lipid binding / calcium ion binding / apoptotic process / ATP binding / membrane / plasma membrane / cytoplasm
Similarity search - Function
Maternal embryonic leucine zipper kinase, catalytic domain / : / Maternal embryonic leucine zipper kinase, UBA domain / Kinase associated domain 1 (KA1) / Kinase associated domain 1 / Kinase associated domain 1 (KA1) profile. / KA1 domain/Ssp2, C-terminal / Transferase(Phosphotransferase) domain 1 / Transferase(Phosphotransferase); domain 1 / Serine/threonine-protein kinase, active site ...Maternal embryonic leucine zipper kinase, catalytic domain / : / Maternal embryonic leucine zipper kinase, UBA domain / Kinase associated domain 1 (KA1) / Kinase associated domain 1 / Kinase associated domain 1 (KA1) profile. / KA1 domain/Ssp2, C-terminal / 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 / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Chem-1WS / Maternal embryonic leucine zipper kinase
Similarity search - Component
Biological speciesHOMO SAPIENS (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsCanevari, G. / Re Depaolini, S. / Cucchi, U. / Forte, B. / Carpinelli, P. / Bertrand, J.A.
CitationJournal: Biochemistry / Year: 2013
Title: Structural Insight Into Maternal Embryonic Leucine Zipper Kinase (Melk) Conformation and Inhibition Towards Structure- Based Drug Design.
Authors: Canevari, G. / Re Depaolini, S. / Cucchi, U. / Bertrand, J.A. / Casale, E. / Perrera, C. / Forte, B. / Carpinelli, P. / Felder, E.R.
History
DepositionApr 30, 2013Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 21, 2013Provider: repository / Type: Initial release
Revision 1.1Oct 2, 2013Group: Database references
Revision 1.2Apr 24, 2019Group: Data collection / Other / Source and taxonomy
Category: entity_src_gen / pdbx_database_proc / pdbx_database_status
Item: _entity_src_gen.pdbx_host_org_cell_line / _pdbx_database_status.recvd_author_approval
Revision 1.3Dec 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

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Assembly

Deposited unit
A: MATERNAL EMBRYONIC LEUCINE ZIPPER KINASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)40,5902
Polymers40,2211
Non-polymers3691
Water1,44180
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)60.440, 63.150, 95.310
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein MATERNAL EMBRYONIC LEUCINE ZIPPER KINASE / HMELK / PROTEIN KINASE EG3 / PEG3 KINASE / PROTEIN KINASE PK38 / HPK38 / TYROSINE-PROTEIN KINASE MELK


Mass: 40220.539 Da / Num. of mol.: 1 / Fragment: KINASE AND UBA DOMAINS, RESIDUES 2-340
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): Sf21 / Production host: SPODOPTERA FRUGIPERDA (fall armyworm)
References: UniProt: Q14680, non-specific serine/threonine protein kinase, non-specific protein-tyrosine kinase
#2: Chemical ChemComp-1WS / N-(3-aminopropyl)-8-[(3-fluorophenyl)amino]-2,4,5,7-tetrahydropyrazolo[3,4-e]indazole-3-carboxamide


Mass: 369.396 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C18H20FN7O
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 80 / 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: 2.33 Å3/Da / Density % sol: 47.29 % / Description: NONE
Crystal growDetails: 10% PEG 3350, 0.1M BIS-TRIS PH 6.5, 0.2M SODIUM CHLORIDE

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID23-1 / Wavelength: 0.9762
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Apr 15, 2010
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9762 Å / Relative weight: 1
ReflectionResolution: 2.2→60.44 Å / Num. obs: 18810 / % possible obs: 98.7 % / Observed criterion σ(I): 2 / Redundancy: 4.5 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 11.6
Reflection shellResolution: 2.2→2.32 Å / Redundancy: 4.6 % / Rmerge(I) obs: 0.48 / Mean I/σ(I) obs: 3.2 / % possible all: 99.5

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Processing

Software
NameVersionClassification
REFMAC5.6.0117refinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1ZMU

1zmu


Resolution: 2.2→52.64 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.93 / Cross valid method: THROUGHOUT / ESU R: 0.27 / ESU R Free: 0.208 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.24023 966 5.1 %RANDOM
Rwork0.19854 ---
obs0.20068 17811 98.16 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 49.184 Å2
Baniso -1Baniso -2Baniso -3
1--2.2 Å20 Å20 Å2
2---0.11 Å20 Å2
3---2.3 Å2
Refinement stepCycle: LAST / Resolution: 2.2→52.64 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2530 0 27 80 2637
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.010.022622
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.5771.9833545
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.1155306
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.94224.25120
X-RAY DIFFRACTIONr_dihedral_angle_3_deg17.4915483
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.0561513
X-RAY DIFFRACTIONr_chiral_restr0.0860.2391
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.0211938
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.2→2.257 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.319 75 -
Rwork0.277 1315 -
obs--99.36 %

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