SASDW23

SEC-SAXS of Trypanosoma cruzi Prolyl Oligopepetidase (TcPOP)

Data type: SASBDB experimental data Status: Published Curve type: SEC-SAS Last updated: 2025-08-07T13:57:51.099551+02:00

CAUTION! Primary display data is different to the data used for modelling! CAUTION! Data used for modelling has NO GUINIER REGION, i.e., does not encompass the particle size/volume and radius of gyration! CAUTION! The models displayed in this entry were NOT used to calculate the fits to the data and therefore have no connection/relevance to the fits displayed in this entry (interpret model fits with extreme caution)!

▼

1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · SEC-SAXS of Trypanosoma cruzi Prolyl Oligopepetidase (TcPOP)

Concentration— – 8.0 Buffer / pH20 mM HEPES, 150 mM NaCl / 7.4
Experimental temperature15.0 Facility / beamlineDiamond Light Source / B21
Wavelength0.09464 nmExposure3.0 s × 600

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Prolyl endopeptidase
View sequence
MRSVYPLARRSMAAYTMHNMTVPEPYDYLEDPENPETKTFVNEQNAFFEEYFASEAELRKKIFESISNSQDYPRTSNPSYINGHYYYYHNSGLQNQSVLMRAMSLTDTAPSIFLDPNSMSSDGTTALKATAWSEDESMLAYSLSDKGSDWQRIHVRRADTVEDTSDVIEWAKFTAIAWWHNLGFFYTRYPALQGDVDKGAETDAAQDAFICFHRIGRPQDEDVVILSVPEHPQWNMGASVSDCHSYVIVVLFDGCEPHNLVWVAELPSVEKGLGSEPLVFKKLVNEFAGRYTYLGNEGSTFYFVTTRDAPRKKIVSIDIHTGQETVIVEQQRSVLSQAALVKKTLLLAYLEDVKDVFYYCRLEDPTLNAIPLPIGTITSFFSDRKKDFVSFKITSFLLPGRSFFLDINDPQSSLRVFKDDTVEGLLVDDFVTEQTFYNSSDGVRIPMFIVYRKGSVSSESPLLLYGYGGFNIPLTPAFSSSRMVFLRDLGGVLAVLNIRGGGEYGEEWHDAGRRACKQNCFTDFIEGAKFLHRQGYGSPQTTAIMGGSNGGLLVAAVANQAPELFRCVVCRVGVLDMYKFHKFTIGHAWKSDYGDPEKEEDFRVLQQYSPLHNIKSGIKYPAILVVTGDHDDRVVPLHSLKYVATLQHMNPNEGGPFLARIEVAAGHGAGKPTSKILREAGDIYTFIAKNINASWKE
proteinTrypanosoma cruziQ71MD61–697monomerMolecule count 178.335 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
12573[3]0.0045–0.34 1/AHas uncertainty columnMissing 0369sasbdb/entries/23/sasdw23/source/SASDW23.dat
▼

2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)0.03—Å
i0Guinier0.0248482—arbitrary
i0P(r)0.01530873—arbitrary
mwExperimental78.5—kDa
mwGuinier I(0)75.0—kDa
mwPorod88.0—kDa
porod_volumePorod142.0—ų
rgGuinier3.00.103Å
rgP(r)0.0—Å

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

▼

3. Source Fits and Models Source Fits & Models

▶

4. Source File Index Source Files

▶

5. Experiment Description and Publication Experiment & Publication

▼

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 name20 mM HEPES, 150 mM NaClBuffer concentration—
pH7.4Additives—
Buffer descriptionPurification buffer
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2023-04-24Storage / measurement temperature15.0 / 15.0
Exposure time3.0Frames600
Wavelength0.09464Sample-to-detector distance3.6856
SourceX-ray synchrotronDetectorEiger 4M
Facility / beamlineDiamond Light Source / B21 · Didcot, UK
q range0.045 – 3.4Sample volume / flow rate50.0 / 0.08

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
curvesasbdb/entries/23/sasdw23/source/SASDW23.datdownloaded1272512276734d62b256b3a2639f876ebe15bc9930b34b943013622d0d12aaa36b7756DownloadView source fileSource site
full_entry_zipsasbdb/entries/23/sasdw23/source/SASDW23.zipdownloaded348998e8dc3c17dc3d1ea955fa6119a93a529e8f366891677df0a3191086498e60ed96DownloadView source fileSource site
pddfsasbdb/entries/23/sasdw23/source/SASDW23.outdownloaded20946031d3caad642aa66e1e57bfa011fa5f4ef381dc1641a23665dd0cc473bc837dfcDownloadView source fileSource site
sascifsasbdb/entries/23/sasdw23/source/SASDW23.sascifnot_available——DownloadView source fileSource site
summarysasbdb/entries/23/sasdw23/source/summary.jsondownloaded94048a7d7b3b07b820d4701ced2b038b2c8c63486cf49c3ec2c1425d83496be34f61DownloadView source fileSource site
curve:source record
{
  "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.dat",
  "role": "curve",
  "sha256": "2276734d62b256b3a2639f876ebe15bc9930b34b943013622d0d12aaa36b7756",
  "size": 127251,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/intensities_files/SASDW23.dat"
}
full_entry_zip:source record and ZIP contents (6 items)
{
  "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.zip",
  "role": "full_entry_zip",
  "sha256": "e8dc3c17dc3d1ea955fa6119a93a529e8f366891677df0a3191086498e60ed96",
  "size": 348998,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/zip_directories/SASDW23.zip",
  "zip_member_count": 6,
  "zip_members": [
    {
      "crc32": "ca9932ef",
      "name": "SASDW23/experimental_data/SASDW23.dat",
      "size": 127251
    },
    {
      "crc32": "319cce01",
      "name": "SASDW23/pddf/SASDW23.out",
      "size": 209460
    },
    {
      "crc32": "bf649725",
      "name": "SASDW23/SASDW23_fit1.fit",
      "size": 81509
    },
    {
      "crc32": "f162c1a4",
      "name": "SASDW23/SASDW23_fit1_model1.pdb",
      "size": 442477
    },
    {
      "crc32": "18ca703d",
      "name": "SASDW23/SASDW23_fit2.fit",
      "size": 81509
    },
    {
      "crc32": "a5411700",
      "name": "SASDW23/SASDW23_fit2_model1.pdb",
      "size": 456353
    }
  ],
  "zip_validation": "central_directory_readable"
}
pddf:source record
{
  "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.out",
  "role": "pddf",
  "sha256": "31d3caad642aa66e1e57bfa011fa5f4ef381dc1641a23665dd0cc473bc837dfc",
  "size": 209460,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/p_of_R_files/SASDW23.out"
}
sascif:source record
{
  "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.sascif",
  "role": "sascif",
  "status": "not_available",
  "url": "https://www.sasbdb.org/media/sascif/sascif_files/SASDW23.sascif"
}
summary:source record
{
  "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/summary.json",
  "sha256": "8a7d7b3b07b820d4701ced2b038b2c8c63486cf49c3ec2c1425d83496be34f61",
  "size": 9404,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/rest-api/entry/summary/SASDW23/"
}

All source fields (unfiltered)

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

summary.json:179 field values
Field pathRaw value
codeSASDW23
statusPublished
type_of_curveSEC-SAS
angular_unit1/A
project.titleCryo-EM led analysis of open and closed conformations of Chagas vaccine candidate TcPOP.
project.publication.titleCryo-EM led analysis of open and closed conformations of Chagas vaccine candidate TcPOP.
project.publication.author_listBatra S, Olmo F, Ragan TJ, Kaplan M, Calvaresi V, Frank AM, Lancey C, Assadipapari M, Ying C, Struwe WB, Hesketh EL, Kelly JM, Barfod L, Campeotto I
project.publication.journalNat Commun
project.publication.doi10.1038/s41467-025-62068-3
project.publication.pmid40764299
project.publication.published_date2025 Aug 5
project.statusreleased
project.submitted_date2024-12-07
project.released_date2025-08-07
pddf_datahttps://www.sasbdb.org/media/p_of_R_files/SASDW23.out
intensities_datahttps://www.sasbdb.org/media/intensities_files/SASDW23.dat
intensities_log_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDW23_dat_img.png
intensities_kratky_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDW23_kratky_img.png
pddf_plothttps://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDW23_pofr_img.png
intensities_guinier_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDW23_guinier_img.png
sascif_datahttps://www.sasbdb.org/media/sascif/sascif_files/SASDW23.sascif
experiment.instrument.detector.typenull
experiment.instrument.detector.nameEiger 4M
experiment.instrument.detector.resolution75.0
experiment.instrument.nameDiamond Light Source
experiment.instrument.cityDidcot
experiment.instrument.countryUK
experiment.instrument.beamline_nameB21
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_nameProlyl endopeptidase
experiment.sample.molecule[0].short_namenull
experiment.sample.molecule[0].sequenceMRSVYPLARRSMAAYTMHNMTVPEPYDYLEDPENPETKTFVNEQNAFFEEYFASEAELRKKIFESISNSQ DYPRTSNPSYINGHYYYYHNSGLQNQSVLMRAMSLTDTAPSIFLDPNSMSSDGTTALKATAWSEDESMLA YSLSDKGSDWQRIHVRRADTVEDTSDVIEWAKFTAIAWWHNLGFFYTRYPALQGDVDKGAETDAAQDAFI CFHRIGRPQDEDVVILSVPEHPQWNMGASVSDCHSYVIVVLFDGCEPHNLVWVAELPSVEKGLGSEPLVF KKLVNEFAGRYTYLGNEGSTFYFVTTRDAPRKKIVSIDIHTGQETVIVEQQRSVLSQAALVKKTLLLAYL EDVKDVFYYCRLEDPTLNAIPLPIGTITSFFSDRKKDFVSFKITSFLLPGRSFFLDINDPQSSLRVFKDD TVEGLLVDDFVTEQTFYNSSDGVRIPMFIVYRKGSVSSESPLLLYGYGGFNIPLTPAFSSSRMVFLRDLG GVLAVLNIRGGGEYGEEWHDAGRRACKQNCFTDFIEGAKFLHRQGYGSPQTTAIMGGSNGGLLVAAVANQ APELFRCVVCRVGVLDMYKFHKFTIGHAWKSDYGDPEKEEDFRVLQQYSPLHNIKSGIKYPAILVVTGDH DDRVVPLHSLKYVATLQHMNPNEGGPFLARIEVAAGHGAGKPTSKILREAGDIYTFIAKNINASWKE
experiment.sample.molecule[0].organismTrypanosoma cruzi
experiment.sample.molecule[0].uniprot_codeQ71MD6
experiment.sample.molecule[0].uniprot_range_first1
experiment.sample.molecule[0].uniprot_range_last697
experiment.sample.molecule[0].oligomerizationmonomer
experiment.sample.molecule[0].molecular_typeprotein
experiment.sample.molecule[0].uniprot_sequenceMRSVYPLARRSMAAYTMHNMTVPEPYDYLEDPENPETKTFVNEQNAFFEEYFASEAELRK KIFESISNSQDYPRTSNPSYINGHYYYYHNSGLQNQSVLMRAMSLTDTAPSIFLDPNSMS SDGTTALKATAWSEDESMLAYSLSDKGSDWQRIHVRRADTVEDTSDVIEWAKFTAIAWWH NLGFFYTRYPALQGDVDKGAETDAAQDAFICFHRIGRPQDEDVVILSVPEHPQWNMGASV SDCHSYVIVVLFDGCEPHNLVWVAELPSVEKGLGSEPLVFKKLVNEFAGRYTYLGNEGST FYFVTTRDAPRKKIVSIDIHTGQETVIVEQQRSVLSQAALVKKTLLLAYLEDVKDVFYYC RLEDPTLNAIPLPIGTITSFFSDRKKDFVSFKITSFLLPGRSFFLDINDPQSSLRVFKDD TVEGLLVDDFVTEQTFYNSSDGVRIPMFIVYRKGSVSSESPLLLYGYGGFNIPLTPAFSS SRMVFLRDLGGVLAVLNIRGGGEYGEEWHDAGRRACKQNCFTDFIEGAKFLHRQGYGSPQ TTAIMGGSNGGLLVAAVANQAPELFRCVVCRVGVLDMYKFHKFTIGHAWKSDYGDPEKEE DFRVLQQYSPLHNIKSGIKYPAILVVTGDHDDRVVPLHSLKYVATLQHMNPNEGGPFLAR IEVAAGHGAGKPTSKILREAGDIYTFIAKNINASWKE
experiment.sample.molecule[0].mw78.335
experiment.sample.molecule[0].total_mw78.335
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_description
experiment.sample.buffer.name20 mM HEPES, 150 mM NaCl
experiment.sample.buffer.concentration_unitnull
experiment.sample.buffer.commentPurification buffer
experiment.sample.buffer.additivenull
experiment.sample.buffer.concentrationnull
experiment.sample.buffer.pkanull
experiment.sample.buffer.ph7.4
experiment.sample.buffer.deuterationnull
experiment.sample.purity_methodnull
experiment.sample.nameSEC-SAXS of Trypanosoma cruzi Prolyl Oligopepetidase (TcPOP)
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].addressnull
experiment.contributor[0].affiliation[0].full_nameuniversity of nottingham
experiment.contributor[0].affiliation[0].webpagenull
experiment.contributor[0].contributor_nameIvan
experiment.contributor[0].contributor_surnameCampeotto
experiment.contributor[0].orcidhttps://orcid.org/0000-0002-0814-619X
experiment.concentration_methodnull
experiment.concentration_unitnull
experiment.date2023-04-24
experiment.storage_temperature15.0
experiment.cell_temperature15.0
experiment.exposure_time3.0
experiment.number_of_frames600
experiment.wavelength0.09464
experiment.sample_detector_distance3.6856
experiment.concentration_minnull
experiment.concentration_max8.0
experiment.sample_volume50.0
experiment.flow_rate0.08
experiment.s_min0.045
experiment.s_max3.4
experiment.total_exposure_timenull
experiment.seccolumn2
fits[0].models[0].model_plothttps://www.sasbdb.org/media/pdb_file/images/SASDW23_fit1_model1_img.png
fits[0].models[0].softwareAlphaFold
fits[0].models[0].pdb_link[]
fits[0].models[0].model_titlenull
fits[0].models[0].type_of_modelatomic
fits[0].models[0].software_versionnull
fits[0].models[0].model_datahttps://www.sasbdb.org/media/pdb_file/SASDW23_fit1_model1.pdb
fits[0].models[0].model_mw78.31
fits[0].models[0].bead_radiusnull
fits[0].models[0].loghttps://www.sasbdb.org/media/log_files/open_jEX66Kv.log
fits[0].models[0].symmetryC1
fits[0].models[0].commentnull
fits[0].models[0].user1152
fits[0].fit_unit1/A
fits[0].fit_plothttps://www.sasbdb.org/media/fitting_files/scattering_plots/SASDW23_fit1_fixed_fit_img.png
fits[0].softwareDENSS
fits[0].chi_square_value1.0833
fits[0].p_value0.0064
fits[0].fit_residual_plotSASDW23_fit1_fitresiduals_img.png
fits[0].fit_datahttps://www.sasbdb.org/media/fitting_files/SASDW23_fit1.fit
fits[0].fit_loghttps://www.sasbdb.org/media/fitting_files/log_files/avrg_001_16.log
fits[0].software_versionnull
fits[0].description
fits[1].models[0].model_plothttps://www.sasbdb.org/media/pdb_file/images/SASDW23_fit2_model1_img.png
fits[1].models[0].softwareAlphaFold
fits[1].models[0].pdb_link[]
fits[1].models[0].model_titlenull
fits[1].models[0].type_of_modelatomic
fits[1].models[0].software_versionnull
fits[1].models[0].model_datahttps://www.sasbdb.org/media/pdb_file/SASDW23_fit2_model1.pdb
fits[1].models[0].model_mw78.31
fits[1].models[0].bead_radiusnull
fits[1].models[0].loghttps://www.sasbdb.org/media/log_files/close.log
fits[1].models[0].symmetryC1
fits[1].models[0].commentnull
fits[1].models[0].user1152
fits[1].fit_unit1/A
fits[1].fit_plothttps://www.sasbdb.org/media/fitting_files/scattering_plots/SASDW23_fit2_fixed_fit_img.png
fits[1].softwareDENSS
fits[1].chi_square_value1.0356
fits[1].p_value0.0002
fits[1].fit_residual_plotSASDW23_fit2_fitresiduals_img.png
fits[1].fit_datahttps://www.sasbdb.org/media/fitting_files/SASDW23_fit2.fit
fits[1].fit_loghttps://www.sasbdb.org/media/fitting_files/log_files/avrg_001_9.log
fits[1].software_versionnull
fits[1].description
estimated_volume_methodnull
pddf_softwareBioXTAS RAW
pddf_software_versionnull
i0_calibration_standardnull
descriptionCAUTION! Primary display data is different to the data used for modelling! CAUTION! Data used for modelling has NO GUINIER REGION, i.e., does not encompass the particle size/volume and radius of gyration! CAUTION! The models displayed in this entry were NOT used to calculate the fits to the data and therefore have no connection/relevance to the fits displayed in this entry (interpret model fits with extreme caution)!
experiment_descriptionnull
tags[]
intensity_unitarbitrary
experimental_mw78.5
experimental_mw_errornull
guinier_i0_mw75.0
guinier_i0_mw_errornull
porod_mw88.0
porod_mw_errornull
pddf_i00.01530873
pddf_i0_errornull
guinier_i00.0248482
guinier_i0_errornull
pddf_rg0.0
pddf_rg_errornull
guinier_rg3.0
guinier_rg_error0.103
pddf_dmax0.03
pddf_dmax_errornull
porod_volume142.0
porod_volume_errornull
estimated_volumenull
estimated_volume_errornull
guinier_point_first45
guinier_point_last298
pddf_point_firstnull
pddf_point_lastnull
i0_calibration_standard_datanull
intensities_log_log_plotSASDW23_datloglog_img.png
symmetrynull
last_modified2025-08-07T13:57:51.099551+02:00
bragg_peak[]
manifest.json:34 field values
Field pathRaw value
codeSASDW23
statussuccess
started_at2026-08-11T13:51:03.158650+00:00
finished_at2026-08-11T13:51:12.818437+00:00
source_last_modified2025-08-07T13:57:51.099551+02:00
files[0].statusdownloaded
files[0].urlhttps://www.sasbdb.org/rest-api/entry/summary/SASDW23/
files[0].path/data/saxsdb/sasbdb/entries/23/sasdw23/source/summary.json
files[0].size9404
files[0].sha2568a7d7b3b07b820d4701ced2b038b2c8c63486cf49c3ec2c1425d83496be34f61
files[1].statusdownloaded
files[1].urlhttps://www.sasbdb.org/media/intensities_files/SASDW23.dat
files[1].path/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.dat
files[1].size127251
files[1].sha2562276734d62b256b3a2639f876ebe15bc9930b34b943013622d0d12aaa36b7756
files[1].rolecurve
files[2].statusdownloaded
files[2].urlhttps://www.sasbdb.org/media/p_of_R_files/SASDW23.out
files[2].path/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.out
files[2].size209460
files[2].sha25631d3caad642aa66e1e57bfa011fa5f4ef381dc1641a23665dd0cc473bc837dfc
files[2].rolepddf
files[3].statusnot_available
files[3].urlhttps://www.sasbdb.org/media/sascif/sascif_files/SASDW23.sascif
files[3].path/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.sascif
files[3].rolesascif
files[4].statusdownloaded
files[4].urlhttps://www.sasbdb.org/media/zip_directories/SASDW23.zip
files[4].path/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.zip
files[4].size348998
files[4].sha256e8dc3c17dc3d1ea955fa6119a93a529e8f366891677df0a3191086498e60ed96
files[4].rolefull_entry_zip
files[4].zip_member_count6
files[4].zip_validationcentral_directory_readable
View the complete summary.json source
{
  "code": "SASDW23",
  "status": "Published",
  "type_of_curve": "SEC-SAS",
  "angular_unit": "1/A",
  "project": {
    "title": "Cryo-EM led analysis of open and closed conformations of Chagas vaccine candidate TcPOP.",
    "publication": {
      "title": "Cryo-EM led analysis of open and closed conformations of Chagas vaccine candidate TcPOP.",
      "author_list": "Batra S, Olmo F, Ragan TJ, Kaplan M, Calvaresi V, Frank AM, Lancey C, Assadipapari M, Ying C, Struwe WB, Hesketh EL, Kelly JM, Barfod L, Campeotto I",
      "journal": "Nat Commun",
      "doi": "10.1038/s41467-025-62068-3",
      "pmid": "40764299",
      "published_date": "2025 Aug 5"
    },
    "status": "released",
    "submitted_date": "2024-12-07",
    "released_date": "2025-08-07"
  },
  "pddf_data": "https://www.sasbdb.org/media/p_of_R_files/SASDW23.out",
  "intensities_data": "https://www.sasbdb.org/media/intensities_files/SASDW23.dat",
  "intensities_log_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDW23_dat_img.png",
  "intensities_kratky_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDW23_kratky_img.png",
  "pddf_plot": "https://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDW23_pofr_img.png",
  "intensities_guinier_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDW23_guinier_img.png",
  "sascif_data": "https://www.sasbdb.org/media/sascif/sascif_files/SASDW23.sascif",
  "experiment": {
    "instrument": {
      "detector": {
        "type": null,
        "name": "Eiger 4M",
        "resolution": 75.0
      },
      "name": "Diamond Light Source",
      "city": "Didcot",
      "country": "UK",
      "beamline_name": "B21",
      "beam_geometry": null,
      "type_of_source": "X-ray synchrotron",
      "point_source": null,
      "line_collimation": null,
      "sample_path_length": null,
      "line_collimation_slitlength": null,
      "line_collimation_integrationwidth": null,
      "xray_energy": null,
      "beam_profile_ah": null,
      "beam_profile_al": null
    },
    "sample": {
      "molecule": [
        {
          "long_name": "Prolyl endopeptidase",
          "short_name": null,
          "sequence": "MRSVYPLARRSMAAYTMHNMTVPEPYDYLEDPENPETKTFVNEQNAFFEEYFASEAELRKKIFESISNSQ\r\nDYPRTSNPSYINGHYYYYHNSGLQNQSVLMRAMSLTDTAPSIFLDPNSMSSDGTTALKATAWSEDESMLA\r\nYSLSDKGSDWQRIHVRRADTVEDTSDVIEWAKFTAIAWWHNLGFFYTRYPALQGDVDKGAETDAAQDAFI\r\nCFHRIGRPQDEDVVILSVPEHPQWNMGASVSDCHSYVIVVLFDGCEPHNLVWVAELPSVEKGLGSEPLVF\r\nKKLVNEFAGRYTYLGNEGSTFYFVTTRDAPRKKIVSIDIHTGQETVIVEQQRSVLSQAALVKKTLLLAYL\r\nEDVKDVFYYCRLEDPTLNAIPLPIGTITSFFSDRKKDFVSFKITSFLLPGRSFFLDINDPQSSLRVFKDD\r\nTVEGLLVDDFVTEQTFYNSSDGVRIPMFIVYRKGSVSSESPLLLYGYGGFNIPLTPAFSSSRMVFLRDLG\r\nGVLAVLNIRGGGEYGEEWHDAGRRACKQNCFTDFIEGAKFLHRQGYGSPQTTAIMGGSNGGLLVAAVANQ\r\nAPELFRCVVCRVGVLDMYKFHKFTIGHAWKSDYGDPEKEEDFRVLQQYSPLHNIKSGIKYPAILVVTGDH\r\nDDRVVPLHSLKYVATLQHMNPNEGGPFLARIEVAAGHGAGKPTSKILREAGDIYTFIAKNINASWKE",
          "organism": "Trypanosoma cruzi",
          "uniprot_code": "Q71MD6",
          "uniprot_range_first": 1,
          "uniprot_range_last": 697,
          "oligomerization": "monomer",
          "molecular_type": "protein",
          "uniprot_sequence": "MRSVYPLARRSMAAYTMHNMTVPEPYDYLEDPENPETKTFVNEQNAFFEEYFASEAELRK\nKIFESISNSQDYPRTSNPSYINGHYYYYHNSGLQNQSVLMRAMSLTDTAPSIFLDPNSMS\nSDGTTALKATAWSEDESMLAYSLSDKGSDWQRIHVRRADTVEDTSDVIEWAKFTAIAWWH\nNLGFFYTRYPALQGDVDKGAETDAAQDAFICFHRIGRPQDEDVVILSVPEHPQWNMGASV\nSDCHSYVIVVLFDGCEPHNLVWVAELPSVEKGLGSEPLVFKKLVNEFAGRYTYLGNEGST\nFYFVTTRDAPRKKIVSIDIHTGQETVIVEQQRSVLSQAALVKKTLLLAYLEDVKDVFYYC\nRLEDPTLNAIPLPIGTITSFFSDRKKDFVSFKITSFLLPGRSFFLDINDPQSSLRVFKDD\nTVEGLLVDDFVTEQTFYNSSDGVRIPMFIVYRKGSVSSESPLLLYGYGGFNIPLTPAFSS\nSRMVFLRDLGGVLAVLNIRGGGEYGEEWHDAGRRACKQNCFTDFIEGAKFLHRQGYGSPQ\nTTAIMGGSNGGLLVAAVANQAPELFRCVVCRVGVLDMYKFHKFTIGHAWKSDYGDPEKEE\nDFRVLQQYSPLHNIKSGIKYPAILVVTGDHDDRVVPLHSLKYVATLQHMNPNEGGPFLAR\nIEVAAGHGAGKPTSKILREAGDIYTFIAKNINASWKE",
          "mw": 78.335,
          "total_mw": 78.335,
          "number_molecules": 1,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": ""
        }
      ],
      "buffer": {
        "name": "20 mM HEPES, 150 mM NaCl",
        "concentration_unit": null,
        "comment": "Purification buffer",
        "additive": null,
        "concentration": null,
        "pka": null,
        "ph": 7.4,
        "deuteration": null
      },
      "purity_method": null,
      "name": "SEC-SAXS of  Trypanosoma cruzi Prolyl Oligopepetidase (TcPOP)",
      "ext_coefficient": null,
      "contrast": null,
      "specific_vol": null,
      "dry_vol": null,
      "absorbption": null,
      "deuteration": null,
      "mixture": null
    },
    "contributor": [
      {
        "affiliation": [
          {
            "short_name": null,
            "address": null,
            "full_name": "university of nottingham",
            "webpage": null
          }
        ],
        "contributor_name": "Ivan",
        "contributor_surname": "Campeotto",
        "orcid": "https://orcid.org/0000-0002-0814-619X"
      }
    ],
    "concentration_method": null,
    "concentration_unit": null,
    "date": "2023-04-24",
    "storage_temperature": 15.0,
    "cell_temperature": 15.0,
    "exposure_time": 3.0,
    "number_of_frames": 600,
    "wavelength": 0.09464,
    "sample_detector_distance": 3.6856,
    "concentration_min": null,
    "concentration_max": 8.0,
    "sample_volume": 50.0,
    "flow_rate": 0.08,
    "s_min": 0.045,
    "s_max": 3.4,
    "total_exposure_time": null,
    "seccolumn": 2
  },
  "fits": [
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDW23_fit1_model1_img.png",
          "software": "AlphaFold",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "atomic",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDW23_fit1_model1.pdb",
          "model_mw": 78.31,
          "bead_radius": null,
          "log": "https://www.sasbdb.org/media/log_files/open_jEX66Kv.log",
          "symmetry": "C1",
          "comment": null,
          "user": 1152
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDW23_fit1_fixed_fit_img.png",
      "software": "DENSS",
      "chi_square_value": 1.0833,
      "p_value": 0.0064,
      "fit_residual_plot": "SASDW23_fit1_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDW23_fit1.fit",
      "fit_log": "https://www.sasbdb.org/media/fitting_files/log_files/avrg_001_16.log",
      "software_version": null,
      "description": ""
    },
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDW23_fit2_model1_img.png",
          "software": "AlphaFold",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "atomic",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDW23_fit2_model1.pdb",
          "model_mw": 78.31,
          "bead_radius": null,
          "log": "https://www.sasbdb.org/media/log_files/close.log",
          "symmetry": "C1",
          "comment": null,
          "user": 1152
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDW23_fit2_fixed_fit_img.png",
      "software": "DENSS",
      "chi_square_value": 1.0356,
      "p_value": 0.0002,
      "fit_residual_plot": "SASDW23_fit2_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDW23_fit2.fit",
      "fit_log": "https://www.sasbdb.org/media/fitting_files/log_files/avrg_001_9.log",
      "software_version": null,
      "description": ""
    }
  ],
  "estimated_volume_method": null,
  "pddf_software": "BioXTAS RAW",
  "pddf_software_version": null,
  "i0_calibration_standard": null,
  "description": "CAUTION! Primary display data is different to the data used for modelling! CAUTION! Data used for modelling has NO GUINIER REGION, i.e., does not encompass the particle size/volume and radius of gyration! CAUTION! The models displayed in this entry were NOT used to calculate the fits to the data and therefore have no connection/relevance to the fits displayed in this entry (interpret model fits with extreme caution)!",
  "experiment_description": null,
  "tags": [],
  "intensity_unit": "arbitrary",
  "experimental_mw": 78.5,
  "experimental_mw_error": null,
  "guinier_i0_mw": 75.0,
  "guinier_i0_mw_error": null,
  "porod_mw": 88.0,
  "porod_mw_error": null,
  "pddf_i0": 0.01530873,
  "pddf_i0_error": null,
  "guinier_i0": 0.0248482,
  "guinier_i0_error": null,
  "pddf_rg": 0.0,
  "pddf_rg_error": null,
  "guinier_rg": 3.0,
  "guinier_rg_error": 0.103,
  "pddf_dmax": 0.03,
  "pddf_dmax_error": null,
  "porod_volume": 142.0,
  "porod_volume_error": null,
  "estimated_volume": null,
  "estimated_volume_error": null,
  "guinier_point_first": 45,
  "guinier_point_last": 298,
  "pddf_point_first": null,
  "pddf_point_last": null,
  "i0_calibration_standard_data": null,
  "intensities_log_log_plot": "SASDW23_datloglog_img.png",
  "symmetry": null,
  "last_modified": "2025-08-07T13:57:51.099551+02:00",
  "bragg_peak": []
}
View the complete manifest.json source
{
  "code": "SASDW23",
  "status": "success",
  "started_at": "2026-08-11T13:51:03.158650+00:00",
  "finished_at": "2026-08-11T13:51:12.818437+00:00",
  "source_last_modified": "2025-08-07T13:57:51.099551+02:00",
  "files": [
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/rest-api/entry/summary/SASDW23/",
      "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/summary.json",
      "size": 9404,
      "sha256": "8a7d7b3b07b820d4701ced2b038b2c8c63486cf49c3ec2c1425d83496be34f61"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/intensities_files/SASDW23.dat",
      "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.dat",
      "size": 127251,
      "sha256": "2276734d62b256b3a2639f876ebe15bc9930b34b943013622d0d12aaa36b7756",
      "role": "curve"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/p_of_R_files/SASDW23.out",
      "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.out",
      "size": 209460,
      "sha256": "31d3caad642aa66e1e57bfa011fa5f4ef381dc1641a23665dd0cc473bc837dfc",
      "role": "pddf"
    },
    {
      "status": "not_available",
      "url": "https://www.sasbdb.org/media/sascif/sascif_files/SASDW23.sascif",
      "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.sascif",
      "role": "sascif"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/zip_directories/SASDW23.zip",
      "path": "/data/saxsdb/sasbdb/entries/23/sasdw23/source/SASDW23.zip",
      "size": 348998,
      "sha256": "e8dc3c17dc3d1ea955fa6119a93a529e8f366891677df0a3191086498e60ed96",
      "role": "full_entry_zip",
      "zip_member_count": 6,
      "zip_validation": "central_directory_readable"
    }
  ]
}