SASDD76

Phox Homologue (PX) - C2 domains of human phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha (PI3KC2α) in complex with inositol-hexaphosphate (IP6)

Data type: SASBDB experimental data Status: Published Curve type: SEC-SAS Last updated: 2021-08-18T17:28:57.323577+02:00

SEC-SAXS details: Column type: S200 5/150 GL column; Flow rate: 0.45 ml/min; Sample temperature, 10°C; Sample injection concentration: 10.5 mg/ml. The ab initio models represent the spatially aligned and volume occupancy corrected (averaged) representation of the protein obtained from 20 individual reconstructions (top, DAMFILT model: NSD = 0.66 +/- 0.02; resolution estimate = 3.3 nm) and the best-fit individual DAMMIN reconstruction (bottom) displayed with the corresponding individual model fit to the SAXS data.

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1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · Phox Homologue (PX) - C2 domains of human phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha (PI3KC2α) in complex with inositol-hexaphosphate (IP6)

Concentration— – 10.5 Buffer / pH25 mM Tris 200 mM NaCl 5% Glycerol 0.5 mM TCEP 4 mM InsP6 / 8.5
Experimental temperature10.0 Facility / beamlineAustralian Synchrotron / SAXS/WAXS
Wavelength0.10332 nmExposure1.0 s × 15

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Phox Homology (PX) - C2 domains of human Phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha
View sequence
SNADEPILSFSPKTYSFRQDGRIKEVSVFTYHKKYNPDKHYIYVVRILREGQIEPSFVFRTFDEFQELHNKLSIIFPLWKLPGFPNRMVLGRTHAKDVAAKRKIELNSYLQSLMNASTDVAECDLVCTFFHPLLRDEKAEGIARSADAGSFSPTPGQIGGAVKLSISYRNGTLFIMVMHIKDLVTEDGADPNPYVKTYLLPDNHKTSKRKTKISRKTRNPTFNEMLVYSGYSKETLRQRELQLSVLSAESLRENFFLGGVTLPLKDFNLSKETVKWYQLTAATYL
proteinHomo sapiensO004431405–1686monomerMolecule count 132.663 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
1233[3]0.01100259–0.3509108 1/AHas uncertainty columnMissing 09sasbdb/entries/76/sasdd76/source/SASDD76.dat
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2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)9.34—Å
i0Guinier0.01959.9e-05—
i0P(r)0.01979——
mwExperimental37.27—kDa
mwPorod28.0—kDa
porod_volumePorod47.61—ų
rgGuinier2.57—Å
rgP(r)2.69—Å

These values are reported by SASBDB; SAXSdb did not recalculate them from the experimental curve.

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3. Source Fits and Models Source Fits & Models

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4. Source File Index Source Files

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5. Experiment Description and Publication Experiment & Publication

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6. Complete Source Record Complete Source Record

The following content comes directly from the SASBDB entry. Missing values are shown as “—”; SAXSdb does not infer undeclared units.

Open the original SASBDB entry

Buffer and Sample Properties

Buffer name25 mM Tris 200 mM NaCl 5% Glycerol 0.5 mM TCEP 4 mM InsP6Buffer concentration—
pH8.5Additives—
Buffer description4 mM InsP6 (10 molar excess) was added to the protein sample a day before the data collection
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2017-10-20Storage / measurement temperature— / 10.0
Exposure time1.0Frames15
Wavelength0.10332Sample-to-detector distance—
SourceX-ray synchrotronDetectorPilatus 1M
Facility / beamlineAustralian Synchrotron / SAXS/WAXS · Melbourne, Australia
q range0.11 – 3.509Sample volume / flow rate— / —

Original SASBDB Plots

Experimental I(q)
Experimental I(q)
Experimental I(q), log-log
Experimental I(q), log-log
Guinier plot
Guinier plot
Kratky plot
Kratky plot
P(r) plot
P(r) plot

Downloadable Files

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All source fields (unfiltered)

Every source field is expanded here, including empty values, list members and fields already shown above.

summary.json:192 field values
Field pathRaw value
codeSASDD76
statusPublished
type_of_curveSEC-SAS
angular_unit1/A
project.titleMolecular Basis for Membrane Recruitment by the PX and C2 Domains of Class II Phosphoinositide 3-Kinase-C2α.
project.publication.titleMolecular Basis for Membrane Recruitment by the PX and C2 Domains of Class II Phosphoinositide 3-Kinase-C2α.
project.publication.author_listChen KE, Tillu VA, Chandra M, Collins BM
project.publication.journalStructure
project.publication.doi10.1016/j.str.2018.08.010
project.publication.pmid30293811
project.publication.published_date2018 Sep 19
project.statusreleased
project.submitted_date2018-04-15
project.released_date2018-10-09
pddf_datahttps://www.sasbdb.org/media/p_of_R_files/SASDD76.out
intensities_datahttps://www.sasbdb.org/media/intensities_files/SASDD76.dat
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sascif_datahttps://www.sasbdb.org/media/sascif/sascif_files/SASDD76.sascif
experiment.instrument.detector.typeDectris
experiment.instrument.detector.namePilatus 1M
experiment.instrument.detector.resolution172.0
experiment.instrument.nameAustralian Synchrotron
experiment.instrument.cityMelbourne
experiment.instrument.countryAustralia
experiment.instrument.beamline_nameSAXS/WAXS
experiment.instrument.beam_geometryPoint
experiment.instrument.type_of_sourceX-ray synchrotron
experiment.instrument.point_sourceTrue
experiment.instrument.line_collimationnull
experiment.instrument.sample_path_lengthnull
experiment.instrument.line_collimation_slitlengthnull
experiment.instrument.line_collimation_integrationwidthnull
experiment.instrument.xray_energynull
experiment.instrument.beam_profile_ahnull
experiment.instrument.beam_profile_alnull
experiment.sample.molecule[0].long_namePhox Homology (PX) - C2 domains of human Phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha
experiment.sample.molecule[0].short_namePI3KC2α
experiment.sample.molecule[0].sequenceSNADEPILSFSPKTYSFRQDGRIKEVSVFTYHKKYNPDKHYIYVVRILREGQIEPSFVFRTFDEFQELHNKLSIIFPLWKLPGFPNRMVLGRTHAKDVAAKRKIELNSYLQSLMNASTDVAECDLVCTFFHPLLRDEKAEGIARSADAGSFSPTPGQIGGAVKLSISYRNGTLFIMVMHIKDLVTEDGADPNPYVKTYLLPDNHKTSKRKTKISRKTRNPTFNEMLVYSGYSKETLRQRELQLSVLSAESLRENFFLGGVTLPLKDFNLSKETVKWYQLTAATYL
experiment.sample.molecule[0].organismHomo sapiens
experiment.sample.molecule[0].uniprot_codeO00443
experiment.sample.molecule[0].uniprot_range_first1405
experiment.sample.molecule[0].uniprot_range_last1686
experiment.sample.molecule[0].oligomerizationmonomer
experiment.sample.molecule[0].molecular_typeprotein
experiment.sample.molecule[0].uniprot_sequenceMAQISSNSGFKECPSSHPEPTRAKDVDKEEALQMEAEALAKLQKDRQVTDNQRGFELSSS TRKKAQVYNKQDYDLMVFPESDSQKRALDIDVEKLTQAELEKLLLDDSFETKKTPVLPVT PILSPSFSAQLYFRPTIQRGQWPPGLPGPSTYALPSIYPSTYSKQAAFQNGFNPRMPTFP STEPIYLSLPGQSPYFSYPLTPATPFHPQGSLPIYRPVVSTDMAKLFDKIASTSEFLKNG KARTDLEITDSKVSNLQVSPKSEDISKFDWLDLDPLSKPKVDNVEVLDHEEEKNVSSLLA KDPWDAVLLEERSTANCHLERKVNGKSLSVATVTRSQSLNIRTTQLAKAQGHISQKDPNG TSSLPTGSSLLQEVEVQNEEMAAFCRSITKLKTKFPYTNHRTNPGYLLSPVTAQRNICGE NASVKVSIDIEGFQLPVTFTCDVSSTVEIIIMQALCWVHDDLNQVDVGSYVLKVCGQEEV LQNNHCLGSHEHIQNCRKWDTEIRLQLLTFSAMCQNLARTAEDDETPVDLNKHLYQIEKP CKEAMTRHPVEELLDSYHNQVELALQIENQHRAVDQVIKAVRKICSALDGVETLAITESV KKLKRAVNLPRSKTADVTSLFGGEDTSRSSTRGSLNPENPVQVSINQLTAAIYDLLRLHA NSGRSPTDCAQSSKSVKEAWTTTEQLQFTIFAAHGISSNWVSNYEKYYLICSLSHNGKDL FKPIQSKKVGTYKNFFYLIKWDELIIFPIQISQLPLESVLHLTLFGILNQSSGSSPDSNK QRKGPEALGKVSLPLFDFKRFLTCGTKLLYLWTSSHTNSVPGTVTKKGYVMERIVLQVDF PSPAFDIIYTTPQVDRSIIQQHNLETLENDIKGKLLDILHKDSSLGLSKEDKAFLWEKRY YCFKHPNCLPKILASAPNWKWVNLAKTYSLLHQWPALYPLIALELLDSKFADQEVRSLAV TWIEAISDDELTDLLPQFVQALKYEIYLNSSLVQFLLSRALGNIQIAHNLYWLLKDALHD VQFSTRYEHVLGALLSVGGKRLREELLKQTKLVQLLGGVAEKVRQASGSARQVVLQRSME RVQSFFQKNKCRLPLKPSLVAKELNIKSCSFFSSNAVPLKVTMVNADPMGEEINVMFKVG EDLRQDMLALQMIKIMDKIWLKEGLDLRMVIFKCLSTGRDRGMVELVPASDTLRKIQVEY GVTGSFKDKPLAEWLRKYNPSEEEYEKASENFIYSCAGCCVATYVLGICDRHNDNIMLRS TGHMFHIDFGKFLGHAQMFGSFKRDRAPFVLTSDMAYVINGGEKPTIRFQLFVDLCCQAY NLIRKQTNLFLNLLSLMIPSGLPELTSIQDLKYVRDALQPQTTDAEATIFFTRLIESSLG SIATKFNFFIHNLAQLRFSGLPSNDEPILSFSPKTYSFRQDGRIKEVSVFTYHKKYNPDK HYIYVVRILREGQIEPSFVFRTFDEFQELHNKLSIIFPLWKLPGFPNRMVLGRTHIKDVA AKRKIELNSYLQSLMNASTDVAECDLVCTFFHPLLRDEKAEGIARSADAGSFSPTPGQIG GAVKLSISYRNGTLFIMVMHIKDLVTEDGADPNPYVKTYLLPDNHKTSKRKTKISRKTRN PTFNEMLVYSGYSKETLRQRELQLSVLSAESLRENFFLGGVTLPLKDFNLSKETVKWYQL TAATYL
experiment.sample.molecule[0].mw32.663
experiment.sample.molecule[0].total_mw32.663
experiment.sample.molecule[0].number_molecules1
experiment.sample.molecule[0].complex_stateFalse
experiment.sample.molecule[0].deuterationnull
experiment.sample.molecule[0].molecule_sourcebiological
experiment.sample.molecule[0].molecule_descriptionnull
experiment.sample.buffer.name25 mM Tris 200 mM NaCl 5% Glycerol 0.5 mM TCEP 4 mM InsP6
experiment.sample.buffer.concentration_unitnull
experiment.sample.buffer.comment4 mM InsP6 (10 molar excess) was added to the protein sample a day before the data collection
experiment.sample.buffer.additivenull
experiment.sample.buffer.concentrationnull
experiment.sample.buffer.pkanull
experiment.sample.buffer.ph8.5
experiment.sample.buffer.deuterationnull
experiment.sample.purity_methodnull
experiment.sample.namePhox Homologue (PX) - C2 domains of human phosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alpha (PI3KC2α) in complex with inositol-hexaphosphate (IP6)
experiment.sample.ext_coefficientnull
experiment.sample.contrastnull
experiment.sample.specific_volnull
experiment.sample.dry_volnull
experiment.sample.absorbptionnull
experiment.sample.deuterationnull
experiment.sample.mixturenull
experiment.contributor[0].affiliation[0].short_namenull
experiment.contributor[0].affiliation[0].addressBrisbane, Australia
experiment.contributor[0].affiliation[0].full_nameThe University of Queensland
experiment.contributor[0].affiliation[0].webpagehttps://www.qut.edu.au
experiment.contributor[0].contributor_nameKai-En
experiment.contributor[0].contributor_surnameChen
experiment.contributor[0].orcidnull
experiment.concentration_methodnull
experiment.concentration_unitnull
experiment.date2017-10-20
experiment.storage_temperaturenull
experiment.cell_temperature10.0
experiment.exposure_time1.0
experiment.number_of_frames15
experiment.wavelength0.10332
experiment.sample_detector_distancenull
experiment.concentration_minnull
experiment.concentration_max10.5
experiment.sample_volumenull
experiment.flow_ratenull
experiment.s_min0.11
experiment.s_max3.509
experiment.total_exposure_timenull
experiment.seccolumnnull
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fits[0].softwareDAMMIN
fits[0].chi_square_value2.592
fits[0].p_value0.040528
fits[0].fit_residual_plotIP6_H_1_fitresiduals_img.png
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fits[1].models[0].symmetrynull
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fits[1].models[0].user284
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fits[1].chi_square_value2.66
fits[1].p_value0.360326
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fits[1].descriptionnull
estimated_volume_methodnull
pddf_softwareATSAS GNOM
pddf_software_version5.0
i0_calibration_standardnull
descriptionSEC-SAXS details: Column type: S200 5/150 GL column; Flow rate: 0.45 ml/min; Sample temperature, 10°C; Sample injection concentration: 10.5 mg/ml. The ab initio models represent the spatially aligned and volume occupancy corrected (averaged) representation of the protein obtained from 20 individual reconstructions (top, DAMFILT model: NSD = 0.66 +/- 0.02; resolution estimate = 3.3 nm) and the best-fit individual DAMMIN reconstruction (bottom) displayed with the corresponding individual model fit to the SAXS data.
experiment_descriptionSynchrotron SAXS data from solutions of the C2 domains of human PI3KC2α (Phox homologue (PX)) bound to IP6 in 25 mM Tris 200 mM NaCl 5% v/v glycerol 0.5 mM TCEP 4 mM IP6, pH 8.5, were collected on the SAXS/WAXS camera at the Australian Synchrotron storage ring (Melbourne, Australia) using a Pilatus 1M detector at a wavelength of λ = 0.10332 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size exclusion chromatography SAXS (SEC-SAXS) was used. 15 successive 1 second frames were collected through SEC elution peak of the protein. The data were normalized to the intensity of the transmitted beam, radially averaged. The resulting 1D data frames were then scaled and then averaged. The scattering of an appropriate solvent-blank from the SEC column was subtracted.
tags[]
intensity_unitnull
experimental_mw37.27
experimental_mw_errornull
guinier_i0_mwnull
guinier_i0_mw_errornull
porod_mw28.0
porod_mw_errornull
pddf_i00.01979
pddf_i0_errornull
guinier_i00.0195
guinier_i0_error9.9e-05
pddf_rg2.69
pddf_rg_errornull
guinier_rg2.57
guinier_rg_errornull
pddf_dmax9.34
pddf_dmax_errornull
porod_volume47.61
porod_volume_errornull
estimated_volumenull
estimated_volume_errornull
guinier_point_first6
guinier_point_last28
pddf_point_firstnull
pddf_point_lastnull
i0_calibration_standard_datanull
intensities_log_log_plotSASDD76_datloglog_img.png
symmetrynull
last_modified2021-08-18T17:28:57.323577+02:00
bragg_peak[]
manifest.json:36 field values
Field pathRaw value
codeSASDD76
statussuccess
started_at2026-08-11T15:03:03.066918+00:00
finished_at2026-08-11T15:03:11.189704+00:00
source_last_modified2021-08-18T17:28:57.323577+02:00
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View the complete summary.json source
{
  "code": "SASDD76",
  "status": "Published",
  "type_of_curve": "SEC-SAS",
  "angular_unit": "1/A",
  "project": {
    "title": "Molecular Basis for Membrane Recruitment by the PX and C2 Domains of Class II Phosphoinositide 3-Kinase-C2α.",
    "publication": {
      "title": "Molecular Basis for Membrane Recruitment by the PX and C2 Domains of Class II Phosphoinositide 3-Kinase-C2α.",
      "author_list": "Chen KE, Tillu VA, Chandra M, Collins BM",
      "journal": "Structure",
      "doi": "10.1016/j.str.2018.08.010",
      "pmid": "30293811",
      "published_date": "2018 Sep 19"
    },
    "status": "released",
    "submitted_date": "2018-04-15",
    "released_date": "2018-10-09"
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            "address": "Brisbane, Australia",
            "full_name": "The University of Queensland",
            "webpage": "https://www.qut.edu.au"
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View the complete manifest.json source
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