SASDXC4

Peroxisomal biogenesis factor 8 (Pex8) bound to the C-terminal domain of Peroxisomal targeting signal receptor, Pex5 (Pex8-Pex5CTD complex from P. pastoris)

Data type: SASBDB experimental data Status: Published Curve type: SEC-SAS Last updated: 2025-09-03T12:12:42.430703+02:00

The experimental molecular weight was estimated using Bayesian inference in the MW rage of 92-107 kDa (datmw tool, ATSAS 3; GNOM.out file input). SASREF models and the unsubtracted SEC-SAXS data frames are made available in the full entry zip archive.

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1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · Peroxisomal biogenesis factor 8 (Pex8) bound to the C-terminal domain of Peroxisomal targeting signal receptor, Pex5 (Pex8-Pex5CTD complex from P. pastoris)

Concentration— – 5.8 Buffer / pH50 mM HEPES, 150 mM NaCl, 3% v/v glycerol / 7.5
Experimental temperature20.0 Facility / beamlinePETRA III / EMBL P12
Wavelength0.123982 nmExposure0.5 s × 63

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Peroxisomal biogenesis factor 8
View sequence
GPMDMREAQRIPQQLDYLLAEIISPNEDTNVIGYLAYYYPKLKNEQNVALLTDFFLRCPTYFSHSNVVSLRNNYPVMEAFNYIMTTKFKVSQPTVPFYRFYAAVLASLLNCEKTDPSHHWKLIPILTGVLLSIKGRDDVELYPDHSRSIKGSDTAVAQLLQRCLLRFYQSGDARSYDLNALVIISMSCALDYVEDDTIKKILYCFNYTRAIIDLIYYSPYGLNDSDIPLLSDSSVNSQSFDQLLNNNPALKHLNRLSFLFERTVKLNDGSIQSNLNDIDISLNKMQSFSEKLSKKISVLDDDSSKGVGQLLRQCLYASIIIHQAILTTFFQLDNADYTKYFLPSFSRKILSILFNLFFIVDRIGTGGFQPYNFVYLTCLQGIIQYDMKTAESLVKTFTTGINYSSLKDSEVARAKLLFTLNLMEQIVNICSDDLRLELIVPLVEDLVNNKNACVDIHNHVFKSIFESAHSVILKFFTVVDSSVKNVDYETNVTLVSEKIIPYLTLVIDQFPEFLSINQLDIAIETISRTVFPDSPIYSYDKNISSMFLNVLFNKCLTVDNDELVELPAIEAVVAPKNDEENNTSDAQDGGPKELQSLNDLKSRRSALISALISVFPLIPVKDYTKWLSIAFYDLIVATPERTERAFLQERLWDCVVGTNKYDPQKGNLGIMWWYENVNAQSTAKL
proteinKomagataella pastorisQ0196233–713monomerMolecule count 178.017 kDa
Peroxisomal targeting signal receptor
View sequence
GPMDGRLNYGEYKYEEKNQFRNDPDAYEIGMRLMESGAKLSEAGLAFEAAVQQDPKHVDAWLKLGEVQTQNEKESDGIAALEKCLELDPTNLAALMTLAISYINDGYDNAAYATLERWIETKYPDIASRARSSNPDLDGGDRIEQNKRVTELFMKAAQLSPDVASMDADVQTGLGVLFYSMEEFDKTIDCFKAAIEVEPDKALNWNRLGAALANYNKPEEAVEAYSRALQLNPNFVRARYNLGVSFINMGRYKEAVEHLLTGISLHEVEGVDASEMSSNQGLQNNALVETLKRAFLGMNRRDLVDKVYPGMGLAQFRKMFDF
proteinKomagataella pastorisP33292259–576monomerMolecule count 136.057 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
12648[3]0.0235803–7.39543 1/nmHas uncertainty columnMissing 0234sasbdb/entries/c4/sasdxc4/source/SASDXC4.dat
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2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)14.5—nm
i0Guinier0.0357463—1/cm
i0P(r)0.03591—1/cm
mwExperimental101.0—kDa
mwPorod88.0—kDa
porod_volumePorod141.0—nm³
rgGuinier4.2110.01nm
rgP(r)4.311—nm

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

Fit 1 · CRYSOL

χ²: 1.093CorMap p: 0.9067Unit: 1/A
ModelName / TypeSoftwareSymmetryModel MWPDB DeclarationSource file
1—otherOther [static image] ———Model
2—atomicSASREF P1113.2—Model Image
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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 name50 mM HEPES, 150 mM NaCl, 3% v/v glycerolBuffer concentration—
pH7.5Additives—
Buffer description0.2um filtered and degassed
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2021-08-17Storage / measurement temperature10.0 / 20.0
Exposure time0.5Frames63
Wavelength0.123982Sample-to-detector distance3.0
SourceX-ray synchrotronDetectorPilatus 6M
Facility / beamlinePETRA III / EMBL P12 · DESY; Hamburg, Germany
q range0.024 – 7.395Sample volume / flow rate90.0 / 0.6

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

CategoryFileStatusSizeChecksumDownload and View
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full_entry_zipsasbdb/entries/c4/sasdxc4/source/SASDXC4.zipdownloaded2793953459d41ee731936776894b54d566e84ed57a5b5c6ea151415bae8f106c5fb33b3ebDownloadView source fileSource site
pddfsasbdb/entries/c4/sasdxc4/source/SASDXC4.outdownloaded107494fbe19a28c93d6ebcf995ac852daba24c5cdfc52b51d42bb35c35d6984d56e232DownloadView source fileSource site
sascifsasbdb/entries/c4/sasdxc4/source/SASDXC4.sascifnot_available——DownloadView source fileSource site
summarysasbdb/entries/c4/sasdxc4/source/summary.jsondownloaded115820eef4e6bc7a005a9c80e68b2c08e20249f1805731a6953417692b30e0a3ce7cdDownloadView source fileSource site
curve:source record
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full_entry_zip:source record and ZIP contents (8 items)
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pddf:source record
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sascif:source record
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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:186 field values
Field pathRaw value
codeSASDXC4
statusPublished
type_of_curveSEC-SAS
angular_unit1/nm
project.titleStructure of Pex8 in complex with peroxisomal receptor Pex5 reveals its essential role in peroxisomal cargo translocation
project.publication.titleStructure of Pex8 in complex with peroxisomal receptor Pex5 reveals its essential role in peroxisomal cargo translocation
project.publication.author_listEkal L, Wendscheck D, David Y, Chojnowski G, Jeffries C, Mullapudi E, Schuldiner M, Warscheid B, Zalckvar E, Wilmanns M
project.publication.journalnull
project.publication.doi10.1101/2025.08.30.673231
project.publication.pmidnull
project.publication.published_date2025 Sep 02
project.statusreleased
project.submitted_date2025-04-25
project.released_date2025-09-03
pddf_datahttps://www.sasbdb.org/media/p_of_R_files/SASDXC4.out
intensities_datahttps://www.sasbdb.org/media/intensities_files/SASDXC4.dat
intensities_log_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDXC4_dat_img.png
intensities_kratky_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDXC4_kratky_img.png
pddf_plothttps://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDXC4_pofr_img.png
intensities_guinier_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDXC4_guinier_img.png
sascif_datahttps://www.sasbdb.org/media/sascif/sascif_files/SASDXC4.sascif
experiment.instrument.detector.typenull
experiment.instrument.detector.namePilatus 6M
experiment.instrument.detector.resolutionnull
experiment.instrument.namePETRA III
experiment.instrument.cityDESY; Hamburg
experiment.instrument.countryGermany
experiment.instrument.beamline_nameEMBL P12
experiment.instrument.beam_geometrynull
experiment.instrument.type_of_sourceX-ray synchrotron
experiment.instrument.point_sourcenull
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_namePeroxisomal biogenesis factor 8
experiment.sample.molecule[0].short_namePex8
experiment.sample.molecule[0].sequenceGPMDMREAQRIPQQLDYLLAEIISPNEDTNVI GYLAYYYPKLKNEQNVALLTDFFLRCPTYFSHSNVVSLRNNYPVMEAFNYIMTTKFKVSQ PTVPFYRFYAAVLASLLNCEKTDPSHHWKLIPILTGVLLSIKGRDDVELYPDHSRSIKGS DTAVAQLLQRCLLRFYQSGDARSYDLNALVIISMSCALDYVEDDTIKKILYCFNYTRAII DLIYYSPYGLNDSDIPLLSDSSVNSQSFDQLLNNNPALKHLNRLSFLFERTVKLNDGSIQ SNLNDIDISLNKMQSFSEKLSKKISVLDDDSSKGVGQLLRQCLYASIIIHQAILTTFFQL DNADYTKYFLPSFSRKILSILFNLFFIVDRIGTGGFQPYNFVYLTCLQGIIQYDMKTAES LVKTFTTGINYSSLKDSEVARAKLLFTLNLMEQIVNICSDDLRLELIVPLVEDLVNNKNA CVDIHNHVFKSIFESAHSVILKFFTVVDSSVKNVDYETNVTLVSEKIIPYLTLVIDQFPE FLSINQLDIAIETISRTVFPDSPIYSYDKNISSMFLNVLFNKCLTVDNDELVELPAIEAV VAPKNDEENNTSDAQDGGPKELQSLNDLKSRRSALISALISVFPLIPVKDYTKWLSIAFY DLIVATPERTERAFLQERLWDCVVGTNKYDPQKGNLGIMWWYENVNAQSTAKL
experiment.sample.molecule[0].organismKomagataella pastoris
experiment.sample.molecule[0].uniprot_codeQ01962
experiment.sample.molecule[0].uniprot_range_first33
experiment.sample.molecule[0].uniprot_range_last713
experiment.sample.molecule[0].oligomerizationmonomer
experiment.sample.molecule[0].molecular_typeprotein
experiment.sample.molecule[0].uniprot_sequenceMYRLGSQGRSIQSQLQNGDSSSGRPLQLQGTGMREAQRIPQQLDYLLAEIISPNEDTNVI GYLAYYYPKLKNEQNVALLTDFFLRCPTYFSHSNVVSLRNNYPVMEAFNYIMTTKFKVSQ PTVPFYRFYAAVLASLLNCEKTDPSHHWKLIPILTGVLLSIKGRDDVELYPDHSRSIKGS DTAVAQLLQRCLLRFYQSGDARSYDLNALVIISMSCALDYVEDDTIKKILYCFNYTRAII DLIYYSPYGLNDSDIPLLSDSSVNSQSFDQLLNNNPALKHLNRLSFLFERTVKLNDGSIQ SNLNDIDISLNKMQSFSEKLSKKISVLDDDSSKGVGQLLRQCLYASIIIHQAILTTFFQL DNADYTKYFLPSFSRKILSILFNLFFIVDRIGTGGFQPYNFVYLTCLQGIIQYDMKTAES LVKTFTTGINYSSLKDSEVARAKLLFTLNLMEQIVNICSDDLRLELIVPLVEDLVNNKNA CVDIHNHVFKSIFESAHSVILKFFTVVDSSVKNVDYETNVTLVSEKIIPYLTLVIDQFPE FLSINQLDIAIETISRTVFPDSPIYSYDKNISSMFLNVLFNKCLTVDNDELVELPAIEAV VAPKNDEENNTSDAQDGGPKELQSLNDLKSRRSALISALISVFPLIPVKDYTKWLSIAFY DLIVATPERTERAFLQERLWDCVVGTNKYDPQKGNLGIMWWYENVNAQSTAKL
experiment.sample.molecule[0].mw78.017
experiment.sample.molecule[0].total_mw78.017
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_descriptionThe protein construct used for SAXS contains an additional four non-native amino acids at the N-terminus (GPMD). The protein was expressed in E. coli BL21 DE3 Lobstr cells.
experiment.sample.molecule[1].long_namePeroxisomal targeting signal receptor
experiment.sample.molecule[1].short_namePex5
experiment.sample.molecule[1].sequenceGPMDGRLNYGEYKYEEKNQFRNDPDAYEIGMRLMESGAKLSEAGLA FEAAVQQDPKHVDAWLKLGEVQTQNEKESDGIAALEKCLELDPTNLAALMTLAISYINDG YDNAAYATLERWIETKYPDIASRARSSNPDLDGGDRIEQNKRVTELFMKAAQLSPDVASM DADVQTGLGVLFYSMEEFDKTIDCFKAAIEVEPDKALNWNRLGAALANYNKPEEAVEAYS RALQLNPNFVRARYNLGVSFINMGRYKEAVEHLLTGISLHEVEGVDASEMSSNQGLQNNA LVETLKRAFLGMNRRDLVDKVYPGMGLAQFRKMFDF
experiment.sample.molecule[1].organismKomagataella pastoris
experiment.sample.molecule[1].uniprot_codeP33292
experiment.sample.molecule[1].uniprot_range_first259
experiment.sample.molecule[1].uniprot_range_last576
experiment.sample.molecule[1].oligomerizationmonomer
experiment.sample.molecule[1].molecular_typeprotein
experiment.sample.molecule[1].uniprot_sequenceMSLIGGGSDCAAGSNPLAQFTKHTQHDTSLQQSMRNGEFQQGNQRMMRNESTMSPMERQQ MDQFMQQQNNPAFNFQPMQHELNVMQQNMNAPQQVANNSWNQEFRMKDPMVANAPSAQVQ TPVQSTNWAQDFQQAGPEVQHHAQQHQHPILSVPGVRAGIYGGGRLMGGSMMNRAAQMQQ QNPAQAQTSEQSQTQWEDQFKDIESMLNSKTQEPKTKQQEQNTFEQVWDDIQVSYADVEL TNDQFQAQWEKDFAQYAEGRLNYGEYKYEEKNQFRNDPDAYEIGMRLMESGAKLSEAGLA FEAAVQQDPKHVDAWLKLGEVQTQNEKESDGIAALEKCLELDPTNLAALMTLAISYINDG YDNAAYATLERWIETKYPDIASRARSSNPDLDGGDRIEQNKRVTELFMKAAQLSPDVASM DADVQTGLGVLFYSMEEFDKTIDCFKAAIEVEPDKALNWNRLGAALANYNKPEEAVEAYS RALQLNPNFVRARYNLGVSFINMGRYKEAVEHLLTGISLHEVEGVDASEMSSNQGLQNNA LVETLKRAFLGMNRRDLVDKVYPGMGLAQFRKMFDF
experiment.sample.molecule[1].mw36.057
experiment.sample.molecule[1].total_mw36.057
experiment.sample.molecule[1].number_molecules1
experiment.sample.molecule[1].complex_stateFalse
experiment.sample.molecule[1].deuterationnull
experiment.sample.molecule[1].molecule_sourcebiological
experiment.sample.molecule[1].molecule_descriptionThe protein construct used for SAXS contains an additional four non-native amino acids at the N-terminus (GPMD). The protein was expressed and purified from E. coli Codon+ RIL.
experiment.sample.buffer.name50 mM HEPES, 150 mM NaCl, 3% v/v glycerol
experiment.sample.buffer.concentration_unitnull
experiment.sample.buffer.comment0.2um filtered and degassed
experiment.sample.buffer.additivenull
experiment.sample.buffer.concentrationnull
experiment.sample.buffer.pkanull
experiment.sample.buffer.ph7.5
experiment.sample.buffer.deuterationnull
experiment.sample.purity_methodnull
experiment.sample.namePeroxisomal biogenesis factor 8 (Pex8) bound to the C-terminal domain of Peroxisomal targeting signal receptor, Pex5 (Pex8-Pex5CTD complex from P. pastoris)
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_nameEMBL-Hamburg
experiment.contributor[0].affiliation[0].addressNotkestraße 85, Geb. 25A, 22607 Hamburg, Deutschland, Germany
experiment.contributor[0].affiliation[0].full_nameEuropean Molecular Biology Laboratory (EMBL) - Hamburg outstation
experiment.contributor[0].affiliation[0].webpagehttp://www.embl-hamburg.de/index.php
experiment.contributor[0].contributor_nameLakhan
experiment.contributor[0].contributor_surnameEkal
experiment.contributor[0].orcidhttps://orcid.org/0000-0001-8916-4201
experiment.concentration_methodnull
experiment.concentration_unitnull
experiment.date2021-08-17
experiment.storage_temperature10.0
experiment.cell_temperature20.0
experiment.exposure_time0.5
experiment.number_of_frames63
experiment.wavelength0.123982
experiment.sample_detector_distance3.0
experiment.concentration_minnull
experiment.concentration_max5.8
experiment.sample_volume90.0
experiment.flow_rate0.6
experiment.s_min0.024
experiment.s_max7.395
experiment.total_exposure_timenull
experiment.seccolumn1
fits[0].models[0].model_plotnull
fits[0].models[0].softwareOther [static image]
fits[0].models[0].pdb_link[]
fits[0].models[0].model_titlenull
fits[0].models[0].type_of_modelother
fits[0].models[0].software_versionnull
fits[0].models[0].model_datahttps://www.sasbdb.org/media/pdb_file/SASDXC4_fit1_model1.png
fits[0].models[0].model_mwnull
fits[0].models[0].bead_radiusnull
fits[0].models[0].lognull
fits[0].models[0].symmetrynull
fits[0].models[0].commentnull
fits[0].models[0].user1019
fits[0].models[1].model_plothttps://www.sasbdb.org/media/pdb_file/images/SASDXC4_fit1_model2_img.png
fits[0].models[1].softwareSASREF
fits[0].models[1].pdb_link[]
fits[0].models[1].model_titlenull
fits[0].models[1].type_of_modelatomic
fits[0].models[1].software_versionnull
fits[0].models[1].model_datahttps://www.sasbdb.org/media/pdb_file/SASDXC4_fit1_model2.pdb
fits[0].models[1].model_mw113.2
fits[0].models[1].bead_radiusnull
fits[0].models[1].lognull
fits[0].models[1].symmetryP1
fits[0].models[1].commentIndividual SASREF model example (renumbered)
fits[0].models[1].user1019
fits[0].fit_unit1/A
fits[0].fit_plothttps://www.sasbdb.org/media/fitting_files/scattering_plots/SASDXC4_fit1_fixed_fit_img.png
fits[0].softwareCRYSOL
fits[0].chi_square_value1.093
fits[0].p_value0.9067
fits[0].fit_residual_plotSASDXC4_fit1_fitresiduals_img.png
fits[0].fit_datahttps://www.sasbdb.org/media/fitting_files/SASDXC4_fit1.fit
fits[0].fit_lognull
fits[0].software_versionnull
fits[0].description
estimated_volume_methodnull
pddf_softwareATSAS GNOM
pddf_software_version5.0
i0_calibration_standardnull
descriptionThe experimental molecular weight was estimated using Bayesian inference in the MW rage of 92-107 kDa (datmw tool, ATSAS 3; GNOM.out file input). SASREF models and the unsubtracted SEC-SAXS data frames are made available in the full entry zip archive.
experiment_descriptionSynchrotron SAXS data from solutions of the Pex8-Pex5CTD complex in 50 mM HEPES, 150 mM NaCl, 3% v/v glycerol, pH 7.5 were collected on the EMBL P12 beam line at PETRA III storage ring (DESY; Hamburg, Germany) using a Pilatus 6M detector at a sample-detector distance of 3 m and at a wavelength of λ = 0.123982 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 90.00 μl sample at 5.8 mg/ml was injected at a 0.60 ml/min flow rate onto a GE Superdex 200 Increase 10/300 column at 20°C. 63 successive 0.500 second frames were collected through the main SEC elution peak. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.
tags[]
intensity_unit1/cm
experimental_mw101.0
experimental_mw_errornull
guinier_i0_mwnull
guinier_i0_mw_errornull
porod_mw88.0
porod_mw_errornull
pddf_i00.03591
pddf_i0_errornull
guinier_i00.0357463
guinier_i0_errornull
pddf_rg4.311
pddf_rg_errornull
guinier_rg4.211
guinier_rg_error0.01
pddf_dmax14.5
pddf_dmax_errornull
porod_volume141.0
porod_volume_errornull
estimated_volumenull
estimated_volume_errornull
guinier_point_first18
guinier_point_last103
pddf_point_firstnull
pddf_point_lastnull
i0_calibration_standard_datanull
intensities_log_log_plotSASDXC4_datloglog_img.png
symmetrynull
last_modified2025-09-03T12:12:42.430703+02:00
bragg_peak[]
manifest.json:34 field values
Field pathRaw value
codeSASDXC4
statussuccess
started_at2026-08-11T14:20:12.513952+00:00
finished_at2026-08-11T14:22:03.986090+00:00
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View the complete summary.json source
{
  "code": "SASDXC4",
  "status": "Published",
  "type_of_curve": "SEC-SAS",
  "angular_unit": "1/nm",
  "project": {
    "title": "Structure of Pex8 in complex with peroxisomal receptor Pex5 reveals its essential role in peroxisomal cargo translocation",
    "publication": {
      "title": "Structure of Pex8 in complex with peroxisomal receptor Pex5 reveals its essential role in peroxisomal cargo translocation",
      "author_list": "Ekal L, Wendscheck D, David Y, Chojnowski G, Jeffries C, Mullapudi E, Schuldiner M, Warscheid B, Zalckvar E, Wilmanns M",
      "journal": null,
      "doi": "10.1101/2025.08.30.673231",
      "pmid": null,
      "published_date": "2025 Sep 02"
    },
    "status": "released",
    "submitted_date": "2025-04-25",
    "released_date": "2025-09-03"
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      "country": "Germany",
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          "uniprot_code": "Q01962",
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          "uniprot_range_last": 713,
          "oligomerization": "monomer",
          "molecular_type": "protein",
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            "short_name": "EMBL-Hamburg",
            "address": "Notkestraße 85, Geb. 25A, 22607 Hamburg, Deutschland, Germany",
            "full_name": "European Molecular Biology Laboratory (EMBL) - Hamburg outstation",
            "webpage": "http://www.embl-hamburg.de/index.php"
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    "date": "2021-08-17",
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View the complete manifest.json source
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