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- PDB-2rea: Crystal structures of C2ALPHA-PI3 kinase PX-domain domain indicat... -

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Basic information

Entry
Database: PDB / ID: 2rea
TitleCrystal structures of C2ALPHA-PI3 kinase PX-domain domain indicate conformational change associated with ligand binding.
ComponentsPhosphatidylinositol-4-phosphate 3-kinase C2 domain-containing alpha polypeptide
KeywordsTRANSFERASE / PX DOMAIN / PI3K / KINASE / PHOSPHORYLATION / NUCLEAR PROTEIN / PHOSPHOINOSITIDE / Cytoplasm / Cytoplasmic vesicle / Golgi apparatus / Membrane / Nucleus / Polymorphism
Function / homology
Function and homology information


vascular associated smooth muscle contraction / Synthesis of PIPs at the late endosome membrane / Synthesis of PIPs at the early endosome membrane / phosphatidylinositol-4-phosphate 3-kinase / Synthesis of PIPs at the Golgi membrane / clathrin coat assembly / phosphatidylinositol biosynthetic process / membrane organization / 1-phosphatidylinositol-4-phosphate 3-kinase activity / phosphatidylinositol-3-phosphate biosynthetic process ...vascular associated smooth muscle contraction / Synthesis of PIPs at the late endosome membrane / Synthesis of PIPs at the early endosome membrane / phosphatidylinositol-4-phosphate 3-kinase / Synthesis of PIPs at the Golgi membrane / clathrin coat assembly / phosphatidylinositol biosynthetic process / membrane organization / 1-phosphatidylinositol-4-phosphate 3-kinase activity / phosphatidylinositol-3-phosphate biosynthetic process / clathrin-coated vesicle / 1-phosphatidylinositol-4,5-bisphosphate 3-kinase activity / positive regulation of cell migration involved in sprouting angiogenesis / phosphatidylinositol-4,5-bisphosphate 3-kinase / phosphatidylinositol 3-kinase / 1-phosphatidylinositol-3-kinase activity / clathrin binding / phosphatidylinositol-mediated signaling / Golgi Associated Vesicle Biogenesis / platelet-derived growth factor receptor signaling pathway / Synthesis of PIPs at the plasma membrane / exocytosis / positive regulation of autophagy / phosphatidylinositol binding / phosphatidylinositol 3-kinase/protein kinase B signal transduction / trans-Golgi network / epidermal growth factor receptor signaling pathway / endocytosis / insulin receptor signaling pathway / cell migration / Clathrin-mediated endocytosis / vesicle / intracellular membrane-bounded organelle / extracellular exosome / nucleoplasm / ATP binding / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
PI3K-C2-alpha, catalytic domain / Phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha, PX domain / Phox-like domain / PX Domain / PhoX homologous domain, present in p47phox and p40phox. / PX domain profile. / PX domain / Phox homology / PX domain superfamily / PI3-kinase family, Ras-binding domain ...PI3K-C2-alpha, catalytic domain / Phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha, PX domain / Phox-like domain / PX Domain / PhoX homologous domain, present in p47phox and p40phox. / PX domain profile. / PX domain / Phox homology / PX domain superfamily / PI3-kinase family, Ras-binding domain / Phosphatidylinositol 3-kinase Ras-binding (PI3K RBD) domain / PI3-kinase family, ras-binding domain / Phosphatidylinositol 3-kinase Ras-binding (PI3K RBD) domain profile. / C2 phosphatidylinositol 3-kinase-type domain / Phosphoinositide 3-kinase C2 / C2 phosphatidylinositol 3-kinase (PI3K)-type domain profile. / Phosphoinositide 3-kinase, region postulated to contain C2 domain / Phosphoinositide 3-kinase family, accessory domain (PIK domain) / Phosphoinositide 3-kinase family, accessory domain (PIK domain) / Phosphoinositide 3-kinase, accessory (PIK) domain superfamily / Phosphoinositide 3-kinase, accessory (PIK) domain / Phosphatidylinositol kinase / PIK helical domain profile. / Protein kinase C conserved region 2 (CalB) / C2 domain / C2 domain / C2 domain profile. / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / C2 domain superfamily / Armadillo-type fold / Ubiquitin-like domain superfamily / Protein kinase-like domain superfamily / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
Phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.5 Å
AuthorsParkinson, G.N. / Vines, D. / Driscoll, P.C. / Djordjevic, S.
CitationJournal: Bmc Struct.Biol. / Year: 2008
Title: Crystal structures of PI3K-C2alpha PX domain indicate conformational change associated with ligand binding
Authors: Parkinson, G.N. / Vines, D. / Driscoll, P.C. / Djordjevic, S.
History
DepositionSep 26, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 27, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Aug 30, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Phosphatidylinositol-4-phosphate 3-kinase C2 domain-containing alpha polypeptide


Theoretical massNumber of molelcules
Total (without water)14,3761
Polymers14,3761
Non-polymers00
Water34219
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)56.866, 56.866, 92.995
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number152
Space group name H-MP3121

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Components

#1: Protein Phosphatidylinositol-4-phosphate 3-kinase C2 domain-containing alpha polypeptide / Phosphoinositide 3-Kinase-C2-alpha / PtdIns-3-kinase C2 alpha / PI3K-C2alpha


Mass: 14375.570 Da / Num. of mol.: 1 / Fragment: PX-DOMAIN, RESIDUES 1421-1532
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PIK3C2A / Plasmid: PET-21B / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)PLYSS
References: UniProt: O00443, phosphatidylinositol-4-phosphate 3-kinase
#2: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 19 / 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: 2.85 Å3/Da / Density % sol: 56.45 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6
Details: 0.1M MALEIC ACID/NAOH, 10% GLYCEROL, PH 6.00, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K

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Data collection

DiffractionMean temperature: 105 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Nov 4, 2004 / Details: MIRRORS OSMIC
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.5→30 Å / Num. all: 5731 / Num. obs: 5731 / % possible obs: 89.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.5 % / Rmerge(I) obs: 0.028 / Net I/σ(I): 40
Reflection shellResolution: 2.5→2.59 Å / Rmerge(I) obs: 0.107 / Mean I/σ(I) obs: 9 / % possible all: 70.9

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Processing

Software
NameVersionClassification
EPMRphasing
REFMAC5.2.0019refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1OCS

1ocs


Resolution: 2.5→27.19 Å / Cor.coef. Fo:Fc: 0.918 / Cor.coef. Fo:Fc free: 0.84 / SU B: 8.757 / SU ML: 0.204 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.473 / ESU R Free: 0.352 / Stereochemistry target values: MAXIMUM LIKELIHOOD
RfactorNum. reflection% reflectionSelection details
Rfree0.31808 250 4.4 %RANDOM
Rwork0.23097 ---
all0.23454 5456 --
obs0.23454 5456 89.35 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 40.838 Å2
Refinement stepCycle: LAST / Resolution: 2.5→27.19 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms945 0 0 19 964
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0340.022972
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg2.8141.9371313
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg10.0185115
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.92723.12548
X-RAY DIFFRACTIONr_dihedral_angle_3_deg20.83115165
X-RAY DIFFRACTIONr_dihedral_angle_4_deg8.59156
X-RAY DIFFRACTIONr_chiral_restr0.160.2139
X-RAY DIFFRACTIONr_gen_planes_refined0.0120.02747
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2940.2436
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3450.2644
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.2250.231
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1560.214
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.2840.23
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it2.0261.5613
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it3.3582936
X-RAY DIFFRACTIONr_scbond_it3.6583433
X-RAY DIFFRACTIONr_scangle_it5.2094.5377
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.5→2.565 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.236 11 -
Rwork0.214 298 -
obs--68.06 %

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