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- PDB-6d87: Structure of the Bovine p85alpha BH domain, R262T mutant -

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Basic information

Entry
Database: PDB / ID: 6d87
TitleStructure of the Bovine p85alpha BH domain, R262T mutant
ComponentsPhosphatidylinositol 3-kinase regulatory subunit alpha
KeywordsSIGNALING PROTEIN / GAP protein
Function / homology
Function and homology information


RHOC GTPase cycle / PI3K events in ERBB4 signaling / Interleukin-7 signaling / GAB1 signalosome / PI3K events in ERBB2 signaling / MET activates PI3K/AKT signaling / CDC42 GTPase cycle / RHOD GTPase cycle / RHOJ GTPase cycle / RAC3 GTPase cycle ...RHOC GTPase cycle / PI3K events in ERBB4 signaling / Interleukin-7 signaling / GAB1 signalosome / PI3K events in ERBB2 signaling / MET activates PI3K/AKT signaling / CDC42 GTPase cycle / RHOD GTPase cycle / RHOJ GTPase cycle / RAC3 GTPase cycle / Erythropoietin activates Phosphoinositide-3-kinase (PI3K) / FLT3 Signaling / RND2 GTPase cycle / RND1 GTPase cycle / IRS-mediated signalling / GPVI-mediated activation cascade / Signaling by SCF-KIT / Downstream signal transduction / PI3K/AKT activation / Signaling by ALK / Role of phospholipids in phagocytosis / Tie2 Signaling / Role of LAT2/NTAL/LAB on calcium mobilization / CD28 dependent PI3K/Akt signaling / RAC1 GTPase cycle / RAC2 GTPase cycle / Interleukin receptor SHC signaling / RND3 GTPase cycle / Co-stimulation by ICOS / PI-3K cascade:FGFR1 / PI-3K cascade:FGFR2 / PI-3K cascade:FGFR3 / PI-3K cascade:FGFR4 / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / PI3K Cascade / PIP3 activates AKT signaling / GP1b-IX-V activation signalling / RAF/MAP kinase cascade / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / Synthesis of PIPs at the plasma membrane / RHOA GTPase cycle / RHOF GTPase cycle / DAP12 signaling / RHOU GTPase cycle / RHOV GTPase cycle / Regulation of signaling by CBL / Downstream TCR signaling / RHOG GTPase cycle / RET signaling / Interleukin-3, Interleukin-5 and GM-CSF signaling / VEGFA-VEGFR2 Pathway / 1-phosphatidylinositol-3-kinase regulator activity / phosphatidylinositol 3-kinase regulator activity / positive regulation of endoplasmic reticulum unfolded protein response / phosphatidylinositol 3-kinase activator activity / phosphatidylinositol 3-kinase complex / transmembrane receptor protein tyrosine kinase adaptor activity / ErbB-3 class receptor binding / phosphatidylinositol 3-kinase complex, class IA / Extra-nuclear estrogen signaling / G alpha (q) signalling events / phosphatidylinositol phosphate biosynthetic process / intracellular glucose homeostasis / insulin receptor substrate binding / enzyme-substrate adaptor activity / phosphatidylinositol 3-kinase binding / insulin-like growth factor receptor binding / substrate adhesion-dependent cell spreading / insulin-like growth factor receptor signaling pathway / response to endoplasmic reticulum stress / positive regulation of RNA splicing / positive regulation of D-glucose import / insulin receptor binding / positive regulation of protein localization to plasma membrane / phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of protein import into nucleus / cellular response to insulin stimulus / insulin receptor signaling pathway / protein transport / protein stabilization / negative regulation of apoptotic process / positive regulation of transcription by RNA polymerase II / identical protein binding / nucleus
Similarity search - Function
Phosphatidylinositol 3-kinase; Chain A / Rho GTPase activation protein / Phosphatidylinositol 3-kinase regulatory subunit alpha, SH3 domain / PIK3R1, inter-SH2 domain / PI3K p85 subunit, C-terminal SH2 domain / PI3K regulatory subunit p85-related , inter-SH2 domain / PI3K p85 subunit, N-terminal SH2 domain / Phosphatidylinositol 3-kinase regulatory subunit P85 inter-SH2 domain / Rho GTPase-activating protein domain / RhoGAP domain ...Phosphatidylinositol 3-kinase; Chain A / Rho GTPase activation protein / Phosphatidylinositol 3-kinase regulatory subunit alpha, SH3 domain / PIK3R1, inter-SH2 domain / PI3K p85 subunit, C-terminal SH2 domain / PI3K regulatory subunit p85-related , inter-SH2 domain / PI3K p85 subunit, N-terminal SH2 domain / Phosphatidylinositol 3-kinase regulatory subunit P85 inter-SH2 domain / Rho GTPase-activating protein domain / RhoGAP domain / Rho GTPase-activating proteins domain profile. / GTPase-activator protein for Rho-like GTPases / Rho GTPase activation protein / SH2 domain / Src homology 2 (SH2) domain profile. / Src homology 2 domains / SH2 domain / Src homology 3 domains / SH2 domain superfamily / SH3-like domain superfamily / Src homology 3 (SH3) domain profile. / SH3 domain / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Phosphatidylinositol 3-kinase regulatory subunit alpha
Similarity search - Component
Biological speciesBos taurus (domestic cattle)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.7 Å
AuthorsMoore, S.A. / Marshall, J.D. / Anderson, D.H.
Funding support Canada, 3items
OrganizationGrant numberCountry
Canadian Institutes of Health Research (CIHR)MOP84277 Canada
Canadian Institutes of Health Research (CIHR)MOP126155 Canada
Natural Sciences and Engineering Research Council (NSERC, Canada)RGPIN262138 Canada
CitationJournal: Sci Rep / Year: 2018
Title: Patient-derived mutations within the N-terminal domains of p85 alpha impact PTEN or Rab5 binding and regulation.
Authors: Mellor, P. / Marshall, J.D.S. / Ruan, X. / Whitecross, D.E. / Ross, R.L. / Knowles, M.A. / Moore, S.A. / Anderson, D.H.
History
DepositionApr 25, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 23, 2018Provider: repository / Type: Initial release
Revision 1.1Jan 8, 2020Group: Author supporting evidence / Source and taxonomy / Category: entity_src_gen / pdbx_audit_support
Item: _entity_src_gen.pdbx_host_org_ncbi_taxonomy_id / _entity_src_gen.pdbx_host_org_strain / _pdbx_audit_support.funding_organization
Revision 1.2Oct 4, 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
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.3Nov 15, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2
Revision 1.4Nov 20, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
B: Phosphatidylinositol 3-kinase regulatory subunit alpha
A: Phosphatidylinositol 3-kinase regulatory subunit alpha
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,9945
Polymers43,7062
Non-polymers2883
Water1,53185
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1190 Å2
ΔGint-33 kcal/mol
Surface area17210 Å2
Unit cell
Length a, b, c (Å)85.499, 91.637, 93.574
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 Phosphatidylinositol 3-kinase regulatory subunit alpha / PtdIns-3-kinase regulatory subunit alpha / Phosphatidylinositol 3-kinase 85 kDa regulatory subunit ...PtdIns-3-kinase regulatory subunit alpha / Phosphatidylinositol 3-kinase 85 kDa regulatory subunit alpha / PtdIns-3-kinase regulatory subunit p85-alpha


Mass: 21853.057 Da / Num. of mol.: 2 / Mutation: R262T
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bos taurus (domestic cattle) / Gene: PIK3R1 / Plasmid: PGEX-6P3
Details (production host): Glutathione-S-Transferase fusion protein
Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P23727
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: SO4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 85 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 4.19 Å3/Da / Density % sol: 70.67 % / Description: Prism
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6 / Details: 1.5 M Li2SO4, 100 mM Na Cacodylate, pH 6.0

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Data collection

DiffractionMean temperature: 80 K
Diffraction sourceSource: SYNCHROTRON / Site: CLSI / Beamline: 08B1-1 / Wavelength: 0.987 Å
DetectorType: RAYONIX MX300HE / Detector: CCD / Date: Oct 25, 2015 / Details: Toroidal focusing mirrors
RadiationMonochromator: Double crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.987 Å / Relative weight: 1
ReflectionResolution: 2.7→35.8 Å / Num. obs: 20681 / % possible obs: 99.3 % / Observed criterion σ(F): 1 / Redundancy: 7.4 % / Biso Wilson estimate: 40.9 Å2 / Rmerge(I) obs: 0.089 / Net I/σ(I): 23.3
Reflection shellResolution: 2.7→2.75 Å / Redundancy: 7.5 % / Rmerge(I) obs: 0.501 / Num. unique obs: 1024 / % possible all: 100

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Processing

Software
NameVersionClassification
PHENIX(1.13_2998)refinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1PBW

1pbw


Resolution: 2.7→35.795 Å / SU ML: 0.31 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 22.92 / Details: Standard ML refinement
RfactorNum. reflection% reflection
Rfree0.2382 903 4.37 %
Rwork0.1961 --
obs0.198 20644 99.34 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Refinement stepCycle: LAST / Resolution: 2.7→35.795 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2815 0 15 85 2915
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0032890
X-RAY DIFFRACTIONf_angle_d0.633937
X-RAY DIFFRACTIONf_dihedral_angle_d13.3351787
X-RAY DIFFRACTIONf_chiral_restr0.038479
X-RAY DIFFRACTIONf_plane_restr0.004488
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.6997-2.86880.24961290.23063230X-RAY DIFFRACTION99
2.8688-3.09020.2621410.23923241X-RAY DIFFRACTION99
3.0902-3.40090.24461560.21993247X-RAY DIFFRACTION99
3.4009-3.89250.22591540.19333278X-RAY DIFFRACTION100
3.8925-4.90220.18061040.15953360X-RAY DIFFRACTION100
4.9022-35.79780.26472190.19453385X-RAY DIFFRACTION100

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