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- PDB-3k7v: Protein phosphatase 2A core complex bound to dinophysistoxin-1 -

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Basic information

Entry
Database: PDB / ID: 3k7v
TitleProtein phosphatase 2A core complex bound to dinophysistoxin-1
Components(Serine/threonine-protein phosphatase 2A ...) x 2
KeywordsSIGNALING PROTEIN/HYDROLASE / PROTEIN-PROTEIN COMPLEX / HEAT REPEAT / SIGNALING PROTEIN / PHOSPHATASE / LIGAND SPECIFICITY / Acetylation / Polymorphism / Centromere / Cytoplasm / Cytoskeleton / Hydrolase / Iron / Manganese / Metal-binding / Methylation / Nucleus / Phosphoprotein / Protein phosphatase / SIGNALING PROTEIN-HYDROLASE complex
Function / homology
Function and homology information


meiotic spindle elongation / Integration of energy metabolism / PP2A-mediated dephosphorylation of key metabolic factors / regulation of microtubule binding / MASTL Facilitates Mitotic Progression / regulation of meiotic cell cycle process involved in oocyte maturation / mitotic sister chromatid separation / protein phosphatase type 2A complex / protein serine/threonine phosphatase complex / meiotic sister chromatid cohesion, centromeric ...meiotic spindle elongation / Integration of energy metabolism / PP2A-mediated dephosphorylation of key metabolic factors / regulation of microtubule binding / MASTL Facilitates Mitotic Progression / regulation of meiotic cell cycle process involved in oocyte maturation / mitotic sister chromatid separation / protein phosphatase type 2A complex / protein serine/threonine phosphatase complex / meiotic sister chromatid cohesion, centromeric / peptidyl-serine dephosphorylation / peptidyl-threonine dephosphorylation / FAR/SIN/STRIPAK complex / Regulation of glycolysis by fructose 2,6-bisphosphate metabolism / positive regulation of microtubule binding / female meiotic nuclear division / Inhibition of replication initiation of damaged DNA by RB1/E2F1 / protein antigen binding / GABA receptor binding / protein phosphatase regulator activity / APC truncation mutants have impaired AXIN binding / AXIN missense mutants destabilize the destruction complex / Truncations of AMER1 destabilize the destruction complex / Initiation of Nuclear Envelope (NE) Reformation / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / ERKs are inactivated / Beta-catenin phosphorylation cascade / Signaling by GSK3beta mutants / CTNNB1 S33 mutants aren't phosphorylated / CTNNB1 S37 mutants aren't phosphorylated / CTNNB1 S45 mutants aren't phosphorylated / CTNNB1 T41 mutants aren't phosphorylated / regulation of growth / Disassembly of the destruction complex and recruitment of AXIN to the membrane / negative regulation of epithelial to mesenchymal transition / negative regulation of glycolytic process through fructose-6-phosphate / Co-inhibition by CTLA4 / protein serine/threonine phosphatase activity / Platelet sensitization by LDL / myosin phosphatase activity / protein-serine/threonine phosphatase / positive regulation of NLRP3 inflammasome complex assembly / ERK/MAPK targets / T cell homeostasis / regulation of G1/S transition of mitotic cell cycle / mesoderm development / regulation of cell differentiation / phosphoprotein phosphatase activity / chromosome, centromeric region / DARPP-32 events / lateral plasma membrane / negative regulation of hippo signaling / regulation of protein phosphorylation / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Cyclin A/B1/B2 associated events during G2/M transition / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / protein dephosphorylation / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / Resolution of Sister Chromatid Cohesion / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / protein tyrosine phosphatase activity / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / AURKA Activation by TPX2 / meiotic cell cycle / positive regulation of protein serine/threonine kinase activity / chromosome segregation / RHO GTPases Activate Formins / RAF activation / Spry regulation of FGF signaling / response to lead ion / Degradation of beta-catenin by the destruction complex / PKR-mediated signaling / tau protein binding / spindle pole / Negative regulation of MAPK pathway / Separation of Sister Chromatids / Cyclin D associated events in G1 / microtubule cytoskeleton / Regulation of PLK1 Activity at G2/M Transition / Regulation of TP53 Degradation / mitotic cell cycle / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / protein-containing complex assembly / intracellular signal transduction / neuron projection / membrane raft / protein heterodimerization activity / neuronal cell body / dendrite / synapse / glutamatergic synapse / mitochondrion / extracellular exosome / nucleus / membrane
Similarity search - Function
: / : / HEAT repeat / HEAT repeat / : / PPP2R1A-like HEAT repeat / Serine/threonine specific protein phosphatases signature. / Protein phosphatase 2A homologues, catalytic domain. / Serine/threonine-specific protein phosphatase/bis(5-nucleosyl)-tetraphosphatase / HEAT repeat profile. ...: / : / HEAT repeat / HEAT repeat / : / PPP2R1A-like HEAT repeat / Serine/threonine specific protein phosphatases signature. / Protein phosphatase 2A homologues, catalytic domain. / Serine/threonine-specific protein phosphatase/bis(5-nucleosyl)-tetraphosphatase / HEAT repeat profile. / HEAT, type 2 / HEAT repeats / Metallo-dependent phosphatases / Purple Acid Phosphatase; chain A, domain 2 / Calcineurin-like phosphoesterase domain, ApaH type / Calcineurin-like phosphoesterase / Leucine-rich Repeat Variant / Metallo-dependent phosphatase-like / Leucine-rich Repeat Variant / 4-Layer Sandwich / Armadillo-like helical / Alpha Horseshoe / Armadillo-type fold / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
: / Chem-XT1 / Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform / Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Rigid body refinement / Resolution: 2.85 Å
AuthorsJeffrey, P.D. / Huhn, J. / Shi, Y.
CitationJournal: Chem.Res.Toxicol. / Year: 2009
Title: A structural basis for the reduced toxicity of dinophysistoxin-2.
Authors: Huhn, J. / Jeffrey, P.D. / Larsen, K. / Rundberget, T. / Rise, F. / Cox, N.R. / Arcus, V. / Shi, Y. / Miles, C.O.
History
DepositionOct 13, 2009Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 3, 2009Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Sep 6, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _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 phosphatase 2A 65 kDa regulatory subunit A alpha isoform
C: Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
hetero molecules


Theoretical massNumber of molelcules
Total (without water)102,2328
Polymers101,0142
Non-polymers1,2176
Water77543
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2710 Å2
ΔGint-60 kcal/mol
Surface area35550 Å2
MethodPISA
Unit cell
Length a, b, c (Å)92.830, 194.780, 202.100
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number23
Space group name H-MI222

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Components

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Serine/threonine-protein phosphatase 2A ... , 2 types, 2 molecules AC

#1: Protein Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform / PP2A / subunit A / PR65-alpha isoform / PP2A / subunit A / R1-alpha isoform / Medium tumor antigen- ...PP2A / subunit A / PR65-alpha isoform / PP2A / subunit A / R1-alpha isoform / Medium tumor antigen-associated 61 kDa protein


Mass: 65378.344 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PPP2R1A / Plasmid: PGEX-2T / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P30153
#2: Protein Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform / PP2A-alpha / Replication protein C / RP-C


Mass: 35636.152 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PPP2CA / Production host: Spodoptera frugiperda (fall armyworm) / Strain (production host): HI-5
References: UniProt: P67775, protein-serine/threonine phosphatase

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Non-polymers , 4 types, 49 molecules

#3: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-XT1 / (2R)-3-[(2S,5R,6R,8S)-8-{(1R,2E)-3-[(2R,4a'R,5R,6'S,8'R,8a'S)-6'-{(1S,3S)-3-[(2S,3R,6R,11R)-3,11-dimethyl-1,7-dioxaspiro[5.5]undec-2-yl]-1-hydroxybutyl}-8'-hydroxy-7'-methylideneoctahydro-3H,3'H-spiro[furan-2,2'-pyrano[3,2-b]pyran]-5-yl]-1-methylprop-2-en-1-yl}-5-hydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl]-2-hydroxy-2-methylpropanoic acid / DINOPHYSISTOXIN-1


Mass: 819.029 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C45H70O13
#5: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 43 / 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: 4.52 Å3/Da / Density % sol: 72.8 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 8.5
Details: 0.2 M LITHIUM SULFATE, 1.5 M AMMONIUM SULFATE, 0.1 M TRIS-CL, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X29A / Wavelength: 1.0809 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Aug 2, 2007
RadiationMonochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.0809 Å / Relative weight: 1
ReflectionResolution: 2.85→50 Å / Num. all: 42933 / Num. obs: 42933 / % possible obs: 99.6 % / Observed criterion σ(I): -3 / Redundancy: 4.5 % / Biso Wilson estimate: 65.5 Å2 / Rsym value: 0.064
Reflection shellResolution: 2.85→2.95 Å / Redundancy: 4.5 % / Rsym value: 0.399 / % possible all: 99.4

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Processing

Software
NameClassification
CBASSdata collection
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: Rigid body refinement
Starting model: pdb entry 2IE4

2ie4


Resolution: 2.85→29.52 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 2355356.19 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber / Details: BULK SOLVENT MODEL USED
RfactorNum. reflection% reflectionSelection details
Rfree0.262 2113 4.9 %RANDOM
Rwork0.217 ---
obs0.217 42912 99.4 %-
all-42912 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 40.4209 Å2 / ksol: 0.35 e/Å3
Displacement parametersBiso mean: 58.3 Å2
Baniso -1Baniso -2Baniso -3
1--5.29 Å20 Å20 Å2
2---4.56 Å20 Å2
3---9.85 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.43 Å0.35 Å
Luzzati d res low-5 Å
Luzzati sigma a0.62 Å0.49 Å
Refinement stepCycle: LAST / Resolution: 2.85→29.52 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6849 0 75 43 6967
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.009
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.5
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d20.9
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.01
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
LS refinement shellResolution: 2.85→3.03 Å / Rfactor Rfree error: 0.02 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.37 352 5.1 %
Rwork0.318 6613 -
obs--98.2 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2dtx1.paramdtx1.top
X-RAY DIFFRACTION3water_rep.paramwater.top
X-RAY DIFFRACTION4ion.paramion.top
X-RAY DIFFRACTION5param_mn.inptopo_mn.inp

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