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- PDB-8uo5: Protein Phosphatase 2A B55 subunit in complex with IER5 -

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Basic information

Entry
Database: PDB / ID: 8uo5
TitleProtein Phosphatase 2A B55 subunit in complex with IER5
Components
  • (Serine/threonine-protein phosphatase 2A ...) x 3
  • Immediate early response gene 5 protein
KeywordsSIGNALING PROTEIN / Phosphatase / complex
Function / homology
Function and homology information


positive regulation of cellular response to heat / regulation of chromosome segregation / meiotic spindle elongation / Integration of energy metabolism / PP2A-mediated dephosphorylation of key metabolic factors / 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 ...positive regulation of cellular response to heat / regulation of chromosome segregation / meiotic spindle elongation / Integration of energy metabolism / PP2A-mediated dephosphorylation of key metabolic factors / 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 / peptidyl-threonine dephosphorylation / meiotic sister chromatid cohesion, centromeric / peptidyl-serine dephosphorylation / FAR/SIN/STRIPAK complex / : / Regulation of glycolysis by fructose 2,6-bisphosphate metabolism / female meiotic nuclear division / Inhibition of replication initiation of damaged DNA by RB1/E2F1 / GABA receptor binding / protein phosphatase regulator activity / protein antigen binding / APC truncation mutants have impaired AXIN binding / AXIN missense mutants destabilize the destruction complex / Truncations of AMER1 destabilize the destruction complex / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / ERKs are inactivated / Initiation of Nuclear Envelope (NE) Reformation / 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 / Co-stimulation by CD28 / regulation of growth / Disassembly of the destruction complex and recruitment of AXIN to the membrane / response to morphine / negative regulation of epithelial to mesenchymal transition / Co-inhibition by CTLA4 / protein serine/threonine phosphatase activity / Platelet sensitization by LDL / histone H2AXS140 phosphatase activity / RNA polymerase II CTD heptapeptide repeat Y1 phosphatase activity / RNA polymerase II CTD heptapeptide repeat T4 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S2 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S5 phosphatase activity / RNA polymerase II CTD heptapeptide repeat S7 phosphatase activity / MAP kinase serine/threonine phosphatase activity / calmodulin-dependent protein phosphatase activity / myosin phosphatase activity / protein-serine/threonine phosphatase / negative regulation of glycolytic process through fructose-6-phosphate / positive regulation of NLRP3 inflammasome complex assembly / ERK/MAPK targets / T cell homeostasis / mesoderm development / vascular endothelial cell response to oscillatory fluid shear stress / regulation of cell differentiation / regulation of G1/S transition of mitotic cell cycle / phosphoprotein phosphatase activity / chromosome, centromeric region / DARPP-32 events / positive regulation of protein serine/threonine kinase activity / lateral plasma membrane / negative regulation of hippo signaling / enzyme-substrate adaptor activity / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Cyclin A/B1/B2 associated events during G2/M transition / spindle assembly / protein dephosphorylation / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / protein tyrosine phosphatase activity / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / Resolution of Sister Chromatid Cohesion / AURKA Activation by TPX2 / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / meiotic cell cycle / chromosome segregation / RHO GTPases Activate Formins / RAF activation / response to lead ion / Spry regulation of FGF signaling / PKR-mediated signaling / Degradation of beta-catenin by the destruction complex / tau protein binding / spindle pole / Negative regulation of MAPK pathway / Cyclin D associated events in G1 / Separation of Sister Chromatids / Regulation of TP53 Degradation / Regulation of PLK1 Activity at G2/M Transition / mitotic cell cycle / regulation of cell population proliferation
Similarity search - Function
Immediate early response / Immediate early response protein (IER) / Protein phosphatase 2A regulatory subunit PR55 / Protein phosphatase 2A regulatory subunit PR55, conserved site / Protein phosphatase 2A regulatory subunit PR55 signature 1. / Protein phosphatase 2A regulatory subunit PR55 signature 2. / : / : / HEAT repeat / HEAT repeat ...Immediate early response / Immediate early response protein (IER) / Protein phosphatase 2A regulatory subunit PR55 / Protein phosphatase 2A regulatory subunit PR55, conserved site / Protein phosphatase 2A regulatory subunit PR55 signature 1. / Protein phosphatase 2A regulatory subunit PR55 signature 2. / : / : / 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 / Calcineurin-like phosphoesterase domain, ApaH type / Calcineurin-like phosphoesterase / Metallo-dependent phosphatase-like / Armadillo-like helical / Armadillo-type fold / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
: / Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform / Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform / Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform / Immediate early response gene 5 protein
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.27 Å
AuthorsJones, D.T.D. / Cao, R. / Rawson, S.D. / Blacklow, S.C.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)CA220340 United States
CitationJournal: To Be Published
Title: Protein Phosphatase 2A B55 subunit in complex with IER5
Authors: Jones, D.T.D. / Cao, R. / Rawson, S.D. / Blacklow, S.C.
History
DepositionOct 19, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 26, 2025Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: Additional map / Part number: 2 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 26, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform
B: Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform
C: Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform
D: Immediate early response gene 5 protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)166,7416
Polymers166,6204
Non-polymers1212
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Serine/threonine-protein phosphatase 2A ... , 3 types, 3 molecules ABC

#1: Protein Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform


Mass: 68065.211 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PPP2R1A / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P30153
#2: Protein Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform


Mass: 51762.012 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PPP2R2A / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63151
#3: Protein Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform


Mass: 38259.879 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) / References: UniProt: P67775

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Protein , 1 types, 1 molecules D

#4: Protein Immediate early response gene 5 protein


Mass: 8532.818 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: IER5, PP4583, SBBI48 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q5VY09

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Non-polymers , 2 types, 2 molecules

#5: Chemical ChemComp-FE / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: PP2A complex with B55 regulatory subunit bound by IER5
Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT
Source (natural)Organism: Spodoptera frugiperda (fall armyworm)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.6
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 53.7 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 3.27 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 66568 / Symmetry type: POINT

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