SASDCR9

Kif2A-tubulin-DARP complex in the presence of AMP-PNP

Data type: SASBDB experimental data Status: Published Curve type: SEC-SAS Last updated: 2019-12-06T13:07:15.624532+01:00

For the SEC-SAXS analysis, a mixture of Kif2A, tubulin and DARPin was passed continuously through an X-ray sample cell via an in-line size exclusion column (GE Superdex 200 10/300 GL) at a flow rate of 1 ml/min. The column was pre-equilibrated with running buffer consisting of 20 mM HEPES, 150 mM NaCl, 1 mM MgCl2 pH 7.2. The protein sample was prepared at 25 μM tubulin, 27 μM DARP in and 20 μM Kif2A and injected into a 100 μL loop. Approximately 1200 two-second exposures were collected per sample, and 100 buffer profiles preceding the elution peaks were averaged and used for background subtraction.

▼

1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · Kif2A-tubulin-DARP complex in the presence of AMP-PNP

Concentration— – 3.7 Buffer / pHHEPES 20 mM, MgCl2 1mM, NaCl 150mM / 7.2
Experimental temperature22.0 Facility / beamlineCornell High Energy Synchrotron Source (CHESS) / G1
Wavelength0.1267 nmExposure2.0 s × 1200

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Designed Ankyrin Repeat Protein D1
View sequence
MGSHHHHHHGSDLGKKLLEAARAGQDDEVRILMANGADVNATDASGLTPLHLAATYGHLEIVEVLLKHGADVNAIDIMGSTPLHLAALIGHLEIVEVLLKHGADVNAVDTWGDTPLHLAAIMGHLEIVEVLLKHGADVNAQDKFGKTAFDISIDNGNEDLAEILQKLN
proteinsynthetic construct——–—monomerMolecule count 117.886 kDa
Kinesin-like protein KIF2A
View sequence
MGSSHHHHHHSSGLVPRGSSRRKSNCVKEVEKLQEKREKRRLQQQELREKRAQDVDATNPNYEIMCMIRDFRGSLDYRPLTTADPIDEHRICVCVRKRPLNKKETQMKDLDVITIPSKDVVMVHEPKQKVDLTRYLENQTFRFDYAFDDSAPNEMVYRFTARPLVETIFERGMATCFAYGQTGSGKTHTMGGDFSGKNQDCSKGIYALAARDVFLMLKKPNYKKLELQVYATFFEIYSGKVFDLLNRKTKLRVLEDGKQQVQVVGLQEREVKCVEDVLKLIDIGNSCRTSGQTSANAHSSRSHAVFQIILRRKGKLHGKFSLIDLAGNERGADTSSADRQTRLEGAEINKSLLALKECIRALGRNKPHTPFRASKLTQVLRDSFIGENSRTCMIATISPGMASCENTLNTLRYANRVKEL
proteinHomo sapiensO00139153–553monomerMolecule count 147.834 kDa
Tubulin alpha-1B chain
View sequence
MRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGKHVPRAVFVDLEPTVIDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLDRIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVDYGKKSKLEFSIYPAPQVSTAVVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLISQIVSSITASLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPANQMVKCDPRHGKYMACCLLYRGDVVPKDVNAAIATIKTKRSIQFVDWCPTGFKVGINYQPPTVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSEAREDMAALEKDYEEVGVDSVEGEGEEEGEEY
proteinBos taurusP81947—–—dimerMolecule count 250.151 kDa
Tubulin beta-2B chain
View sequence
MREIVHIQAGQCGNQIGAKFWEVISDEHGIDPTGSYHGDSDLQLERINVYYNEATGNKYVPRAILVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVVRKESESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVMPSPKVSDTVVEPYNATLSVHQLVENTDETYSIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCLRFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDSKNMMAACDPRHGRYLTVAAIFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRGLKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVSEYQQYQDATADEQGEFEEEEGEDEA
proteinBos taurusQ6B856—–—dimerMolecule count 249.936 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
1464[3]0.00859205786–0.273487884 1/AHas uncertainty columnMissing 064sasbdb/entries/r9/sasdcr9/source/SASDCR9.dat
▼

2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)19.5—Å
i0Guinier0.029490.0002arbitrary
i0P(r)0.02980.00029arbitrary
mwExperimental258.5—kDa
mwPorod279.7—kDa
porod_volumePorod374.0—ų
rgGuinier5.410.05Å
rgP(r)5.60.03Å

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 nameHEPES 20 mM, MgCl2 1mM, NaCl 150mMBuffer concentration—
pH7.2Additives—
Buffer description—
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2016-05-16Storage / measurement temperature4.0 / 22.0
Exposure time2.0Frames1200
Wavelength0.1267Sample-to-detector distance1.47
SourceX-ray synchrotronDetectorFinger Lakes CCD
Facility / beamlineCornell High Energy Synchrotron Source (CHESS) / G1 · Ithaca, NY, USA
q range0.086 – 2.735Sample 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

CategoryFileStatusSizeChecksumDownload and View
curvesasbdb/entries/r9/sasdcr9/source/SASDCR9.datdownloaded396011cf3562caa7924d5df45c82880f36aa7d5dab4368b473137f0b9d6d57cb2b48dDownloadView source fileSource site
full_entry_zipsasbdb/entries/r9/sasdcr9/source/SASDCR9.zipdownloaded4196219094c3680237676025ed221714fa4f13d805787b218a5e842236b2924be73113DownloadView source fileSource site
pddfsasbdb/entries/r9/sasdcr9/source/SASDCR9.outdownloaded329869fa3108f778f003a01e3840181e217611e9e3540b19b28ee8eedf2a33c0c9032DownloadView source fileSource site
sascifsasbdb/entries/r9/sasdcr9/source/SASDCR9.sascifdownloaded7076ef9d8bae2ad718a0fe24f24bdeeef8cabb7d8c8901dc49f20f4334782880c0ceDownloadView source fileSource site
summarysasbdb/entries/r9/sasdcr9/source/summary.jsondownloaded13961d50a8a0c6b09735710d69f54b45a579b5bc8dab2f6aadc4be071f4ecb5097188DownloadView source fileSource site
curve:source record
{
  "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.dat",
  "role": "curve",
  "sha256": "1cf3562caa7924d5df45c82880f36aa7d5dab4368b473137f0b9d6d57cb2b48d",
  "size": 39601,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/intensities_files/SASDCR9.dat"
}
full_entry_zip:source record and ZIP contents (6 items)
{
  "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.zip",
  "role": "full_entry_zip",
  "sha256": "9094c3680237676025ed221714fa4f13d805787b218a5e842236b2924be73113",
  "size": 419621,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/zip_directories/SASDCR9.zip",
  "zip_member_count": 6,
  "zip_members": [
    {
      "crc32": "9bdd7afb",
      "name": "SASDCR9/experimental_data/SASDCR9.dat",
      "size": 39601
    },
    {
      "crc32": "0a8c1494",
      "name": "SASDCR9/pddf/SASDCR9.out",
      "size": 32986
    },
    {
      "crc32": "384dd23f",
      "name": "SASDCR9/SASDCR9_fit1.fir",
      "size": 21053
    },
    {
      "crc32": "42d38d03",
      "name": "SASDCR9/SASDCR9_fit1_model1.pdb",
      "size": 95754
    },
    {
      "crc32": "371048a0",
      "name": "SASDCR9/SASDCR9_fit2.fit",
      "size": 27271
    },
    {
      "crc32": "d337cf4e",
      "name": "SASDCR9/SASDCR9_fit2_model1.pdb",
      "size": 1410538
    }
  ],
  "zip_validation": "central_directory_readable"
}
pddf:source record
{
  "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.out",
  "role": "pddf",
  "sha256": "9fa3108f778f003a01e3840181e217611e9e3540b19b28ee8eedf2a33c0c9032",
  "size": 32986,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/p_of_R_files/SASDCR9.out"
}
sascif:source record
{
  "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.sascif",
  "role": "sascif",
  "sha256": "ef9d8bae2ad718a0fe24f24bdeeef8cabb7d8c8901dc49f20f4334782880c0ce",
  "size": 7076,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/media/sascif/sascif_files/SASDCR9.sascif"
}
summary:source record
{
  "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/summary.json",
  "sha256": "d50a8a0c6b09735710d69f54b45a579b5bc8dab2f6aadc4be071f4ecb5097188",
  "size": 13961,
  "status": "downloaded",
  "url": "https://www.sasbdb.org/rest-api/entry/summary/SASDCR9/"
}

All source fields (unfiltered)

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

summary.json:233 field values
Field pathRaw value
codeSASDCR9
statusPublished
type_of_curveSEC-SAS
angular_unit1/A
project.titleTernary complex of Kif2A-bound tandem tubulin heterodimers represents a kinesin-13-mediated microtubule depolymerization reaction intermediate.
project.publication.titleTernary complex of Kif2A-bound tandem tubulin heterodimers represents a kinesin-13-mediated microtubule depolymerization reaction intermediate.
project.publication.author_listTrofimova D, Paydar M, Zara A, Talje L, Kwok BH, Allingham JS
project.publication.journalNat Commun
project.publication.doi10.1038/s41467-018-05025-7
project.publication.pmid29980677
project.publication.published_date2018 Jul 6
project.statusreleased
project.submitted_date2017-11-28
project.released_date2018-05-15
pddf_datahttps://www.sasbdb.org/media/p_of_R_files/SASDCR9.out
intensities_datahttps://www.sasbdb.org/media/intensities_files/SASDCR9.dat
intensities_log_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDCR9_dat_img.png
intensities_kratky_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDCR9_kratky_img.png
pddf_plothttps://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDCR9_pofr_img.png
intensities_guinier_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDCR9_guinier_img.png
sascif_datahttps://www.sasbdb.org/media/sascif/sascif_files/SASDCR9.sascif
experiment.instrument.detector.typeCCD
experiment.instrument.detector.nameFinger Lakes CCD
experiment.instrument.detector.resolution0.0
experiment.instrument.nameCornell High Energy Synchrotron Source (CHESS)
experiment.instrument.cityIthaca, NY
experiment.instrument.countryUSA
experiment.instrument.beamline_nameG1
experiment.instrument.beam_geometry
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_nameDesigned Ankyrin Repeat Protein D1
experiment.sample.molecule[0].short_nameDARPin D1
experiment.sample.molecule[0].sequenceMGSHHHHHHGSDLGKKLLEAARAGQDDEVRILMANGADVNATDASGLTPLHLAATYGHLEIVEVLLKHGADVNAIDIMGSTPLHLAALIGHLEIVEVLLKHGADVNAVDTWGDTPLHLAAIMGHLEIVEVLLKHGADVNAQDKFGKTAFDISIDNGNEDLAEILQKLN
experiment.sample.molecule[0].organismsynthetic construct
experiment.sample.molecule[0].uniprot_codenull
experiment.sample.molecule[0].uniprot_range_firstnull
experiment.sample.molecule[0].uniprot_range_lastnull
experiment.sample.molecule[0].oligomerizationmonomer
experiment.sample.molecule[0].molecular_typeprotein
experiment.sample.molecule[0].uniprot_sequencenull
experiment.sample.molecule[0].mw17.886
experiment.sample.molecule[0].total_mw17.886
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.molecule[1].long_nameKinesin-like protein KIF2A
experiment.sample.molecule[1].short_nameKif2A
experiment.sample.molecule[1].sequenceMGSSHHHHHHSSGLVPRGSSRRKSNCVKEVEKLQEKREKRRLQQQELREKRAQDVDATNPNYEIMCMIRDFRGSLDYRPLTTADPIDEHRICVCVRKRPLNKKETQMKDLDVITIPSKDVVMVHEPKQKVDLTRYLENQTFRFDYAFDDSAPNEMVYRFTARPLVETIFERGMATCFAYGQTGSGKTHTMGGDFSGKNQDCSKGIYALAARDVFLMLKKPNYKKLELQVYATFFEIYSGKVFDLLNRKTKLRVLEDGKQQVQVVGLQEREVKCVEDVLKLIDIGNSCRTSGQTSANAHSSRSHAVFQIILRRKGKLHGKFSLIDLAGNERGADTSSADRQTRLEGAEINKSLLALKECIRALGRNKPHTPFRASKLTQVLRDSFIGENSRTCMIATISPGMASCENTLNTLRYANRVKEL
experiment.sample.molecule[1].organismHomo sapiens
experiment.sample.molecule[1].uniprot_codeO00139
experiment.sample.molecule[1].uniprot_range_first153
experiment.sample.molecule[1].uniprot_range_last553
experiment.sample.molecule[1].oligomerizationmonomer
experiment.sample.molecule[1].molecular_typeprotein
experiment.sample.molecule[1].uniprot_sequenceMATANFGKIQIGIYVEIKRSDGRIHQAMVTSLNEDNESVTVEWIENGDTKGKEIDLESIF SLNPDLVPDEEIEPSPETPPPPASSAKVNKIVKNRRTVASIKNDPPSRDNRVVGSARARP SQFPEQSSSAQQNGSVSDISPVQAAKKEFGPPSRRKSNCVKEVEKLQEKREKRRLQQQEL REKRAQDVDATNPNYEIMCMIRDFRGSLDYRPLTTADPIDEHRICVCVRKRPLNKKETQM KDLDVITIPSKDVVMVHEPKQKVDLTRYLENQTFRFDYAFDDSAPNEMVYRFTARPLVET IFERGMATCFAYGQTGSGKTHTMGGDFSGKNQDCSKGIYALAARDVFLMLKKPNYKKLEL QVYATFFEIYSGKVFDLLNRKTKLRVLEDGKQQVQVVGLQEREVKCVEDVLKLIDIGNSC RTSGQTSANAHSSRSHAVFQIILRRKGKLHGKFSLIDLAGNERGADTSSADRQTRLEGAE INKSLLALKECIRALGRNKPHTPFRASKLTQVLRDSFIGENSRTCMIATISPGMASCENT LNTLRYANRVKELTVDPTAAGDVRPIMHHPPNQIDDLETQWGVGSSPQRDDLKLLCEQNE EEVSPQLFTFHEAVSQMVEMEEQVVEDHRAVFQESIRWLEDEKALLEMTEEVDYDVDSYA TQLEAILEQKIDILTELRDKVKSFRAALQEEEQASKQINPKRPRAL
experiment.sample.molecule[1].mw47.834
experiment.sample.molecule[1].total_mw47.834
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_descriptionnull
experiment.sample.molecule[2].long_nameTubulin alpha-1B chain
experiment.sample.molecule[2].short_namealpha tubulin
experiment.sample.molecule[2].sequenceMRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGKHVPRAVFVDLEPTVIDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLDRIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVDYGKKSKLEFSIYPAPQVSTAVVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLISQIVSSITASLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPANQMVKCDPRHGKYMACCLLYRGDVVPKDVNAAIATIKTKRSIQFVDWCPTGFKVGINYQPPTVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSEAREDMAALEKDYEEVGVDSVEGEGEEEGEEY
experiment.sample.molecule[2].organismBos taurus
experiment.sample.molecule[2].uniprot_codeP81947
experiment.sample.molecule[2].uniprot_range_firstnull
experiment.sample.molecule[2].uniprot_range_lastnull
experiment.sample.molecule[2].oligomerizationdimer
experiment.sample.molecule[2].molecular_typeprotein
experiment.sample.molecule[2].uniprot_sequenceMRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGK HVPRAVFVDLEPTVIDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLD RIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVDYGKKSKLEFSIYPAPQVSTA VVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLISQIVSSITA SLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPAN QMVKCDPRHGKYMACCLLYRGDVVPKDVNAAIATIKTKRSIQFVDWCPTGFKVGINYQPP TVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSE AREDMAALEKDYEEVGVDSVEGEGEEEGEEY
experiment.sample.molecule[2].mw50.151
experiment.sample.molecule[2].total_mw100.302
experiment.sample.molecule[2].number_molecules2
experiment.sample.molecule[2].complex_stateFalse
experiment.sample.molecule[2].deuterationnull
experiment.sample.molecule[2].molecule_sourcebiological
experiment.sample.molecule[2].molecule_descriptionnull
experiment.sample.molecule[3].long_nameTubulin beta-2B chain
experiment.sample.molecule[3].short_namebeta tubulin
experiment.sample.molecule[3].sequenceMREIVHIQAGQCGNQIGAKFWEVISDEHGIDPTGSYHGDSDLQLERINVYYNEATGNKYVPRAILVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVVRKESESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVMPSPKVSDTVVEPYNATLSVHQLVENTDETYSIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCLRFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDSKNMMAACDPRHGRYLTVAAIFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRGLKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVSEYQQYQDATADEQGEFEEEEGEDEA
experiment.sample.molecule[3].organismBos taurus
experiment.sample.molecule[3].uniprot_codeQ6B856
experiment.sample.molecule[3].uniprot_range_firstnull
experiment.sample.molecule[3].uniprot_range_lastnull
experiment.sample.molecule[3].oligomerizationdimer
experiment.sample.molecule[3].molecular_typeprotein
experiment.sample.molecule[3].uniprot_sequenceMREIVHIQAGQCGNQIGAKFWEVISDEHGIDPTGSYHGDSDLQLERINVYYNEATGNKYV PRAILVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVV RKESESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVMPSPKVSDTVV EPYNATLSVHQLVENTDETYCIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCL RFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDSKNMM AACDPRHGRYLTVAAIFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRG LKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVS EYQQYQDATADEQGEFEEEEGEDEA
experiment.sample.molecule[3].mw49.936
experiment.sample.molecule[3].total_mw99.872
experiment.sample.molecule[3].number_molecules2
experiment.sample.molecule[3].complex_stateFalse
experiment.sample.molecule[3].deuterationnull
experiment.sample.molecule[3].molecule_sourcebiological
experiment.sample.molecule[3].molecule_descriptionnull
experiment.sample.buffer.nameHEPES 20 mM, MgCl2 1mM, NaCl 150mM
experiment.sample.buffer.concentration_unitnull
experiment.sample.buffer.commentnull
experiment.sample.buffer.additivenull
experiment.sample.buffer.concentrationnull
experiment.sample.buffer.pkanull
experiment.sample.buffer.ph7.2
experiment.sample.buffer.deuterationnull
experiment.sample.purity_methodnull
experiment.sample.nameKif2A-tubulin-DARP complex in the presence of AMP-PNP
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].addressKingston, ON, Canada
experiment.contributor[0].affiliation[0].full_nameQueen's University
experiment.contributor[0].affiliation[0].webpagehttp://www.queensu.ca/
experiment.contributor[0].contributor_nameDaria
experiment.contributor[0].contributor_surnameTrofimova
experiment.contributor[0].orcidnull
experiment.concentration_methodnull
experiment.concentration_unitnull
experiment.date2016-05-16
experiment.storage_temperature4.0
experiment.cell_temperature22.0
experiment.exposure_time2.0
experiment.number_of_frames1200
experiment.wavelength0.1267
experiment.sample_detector_distance1.47
experiment.concentration_minnull
experiment.concentration_max3.7
experiment.sample_volumenull
experiment.flow_ratenull
experiment.s_min0.086
experiment.s_max2.735
experiment.total_exposure_timenull
experiment.seccolumnnull
fits[0].models[0].model_plothttps://www.sasbdb.org/media/pdb_file/images/SASDCR9_fit1_model1_img.png
fits[0].models[0].softwareDAMMIF
fits[0].models[0].pdb_link[]
fits[0].models[0].model_titlenull
fits[0].models[0].type_of_modeldummy
fits[0].models[0].software_versionnull
fits[0].models[0].model_datahttps://www.sasbdb.org/media/pdb_file/SASDCR9_fit1_model1.pdb
fits[0].models[0].model_mw240.0
fits[0].models[0].bead_radius4.1
fits[0].models[0].lognull
fits[0].models[0].symmetryP1
fits[0].models[0].commentnull
fits[0].models[0].user260
fits[0].fit_unit1/A
fits[0].fit_plothttps://www.sasbdb.org/media/fitting_files/scattering_plots/SASDCR9_fit1_fit_img.png
fits[0].softwareDAMMIF
fits[0].chi_square_value1.02
fits[0].p_value0.761362
fits[0].fit_residual_plotSASDCR9_fit1_fitresiduals_img.png
fits[0].fit_datahttps://www.sasbdb.org/media/fitting_files/SASDCR9_fit1.fir
fits[0].fit_loghttps://www.sasbdb.org/media/fitting_files/log_files/S_A_Kif2ATubDARPin_A4_64_001_0434_big_comp_subst_01_qE84UBp.log
fits[0].software_versionnull
fits[0].descriptionnull
fits[1].models[0].model_plothttps://www.sasbdb.org/media/pdb_file/images/SASDCR9_fit2_model1_img.png
fits[1].models[0].softwarePDB (Protein Data Bank)
fits[1].models[0].pdb_link[0].pdb_code6bbn
fits[1].models[0].pdb_link[0].ext_code6BBN
fits[1].models[0].pdb_link[0].ext_typepdb
fits[1].models[0].pdb_link[0].difference_with_modelidentical
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/SASDCR9_fit2_model1.pdb
fits[1].models[0].model_mw253.4
fits[1].models[0].bead_radius1.9
fits[1].models[0].lognull
fits[1].models[0].symmetryP21
fits[1].models[0].commentnull
fits[1].models[0].user260
fits[1].fit_unit1/A
fits[1].fit_plothttps://www.sasbdb.org/media/fitting_files/scattering_plots/SASDCR9_fit2_fit_img.png
fits[1].softwareCRYSOL
fits[1].chi_square_value1.087
fits[1].p_value0.600511
fits[1].fit_residual_plotSASDCR9_fit2_fitresiduals_img.png
fits[1].fit_datahttps://www.sasbdb.org/media/fitting_files/SASDCR9_fit2.fit
fits[1].fit_loghttps://www.sasbdb.org/media/fitting_files/log_files/Kif2A_TubDar_Final00.log
fits[1].software_versionnull
fits[1].descriptionnull
estimated_volume_methodnull
pddf_softwareATSAS GNOM
pddf_software_versionnull
i0_calibration_standardnull
descriptionFor the SEC-SAXS analysis, a mixture of Kif2A, tubulin and DARPin was passed continuously through an X-ray sample cell via an in-line size exclusion column (GE Superdex 200 10/300 GL) at a flow rate of 1 ml/min. The column was pre-equilibrated with running buffer consisting of 20 mM HEPES, 150 mM NaCl, 1 mM MgCl2 pH 7.2. The protein sample was prepared at 25 μM tubulin, 27 μM DARP in and 20 μM Kif2A and injected into a 100 μL loop. Approximately 1200 two-second exposures were collected per sample, and 100 buffer profiles preceding the elution peaks were averaged and used for background subtraction.
experiment_descriptionSynchrotron SAXS data from solutions of Kif2A-tubulin-DARPin complex in presence of AMP-PNP in 20 mM HEPES, 1 mM MgCl2, 150 mM NaCl, pH 7.2 were collected at the BioSAXS G1 beam line at the Cornell High Energy Synchrotron Source (CHESS; Ithaca, NY, USA) using a CCD Finger Lakes CCD detector at a sample-detector distance of 1.5 m and at a wavelength of λ = 0.1267 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). 1200 successive 2 second frames were collected using size exclusion chromatography SAXS (SEC-SAXS; 3.70 mg/ml sample injection at 22°C).
tags[]
intensity_unitarbitrary
experimental_mw258.5
experimental_mw_errornull
guinier_i0_mwnull
guinier_i0_mw_errornull
porod_mw279.7
porod_mw_errornull
pddf_i00.0298
pddf_i0_error0.00029
guinier_i00.02949
guinier_i0_error0.0002
pddf_rg5.6
pddf_rg_error0.03
guinier_rg5.41
guinier_rg_error0.05
pddf_dmax19.5
pddf_dmax_errornull
porod_volume374.0
porod_volume_errornull
estimated_volumenull
estimated_volume_errornull
guinier_point_first4
guinier_point_last26
pddf_point_firstnull
pddf_point_lastnull
i0_calibration_standard_datanull
intensities_log_log_plotSASDCR9_datloglog_img.png
symmetrynull
last_modified2019-12-06T13:07:15.624532+01:00
bragg_peak[]
manifest.json:36 field values
Field pathRaw value
codeSASDCR9
statussuccess
started_at2026-08-11T16:20:31.095509+00:00
finished_at2026-08-11T16:20:39.437470+00:00
source_last_modified2019-12-06T13:07:15.624532+01:00
files[0].statusdownloaded
files[0].urlhttps://www.sasbdb.org/rest-api/entry/summary/SASDCR9/
files[0].path/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/summary.json
files[0].size13961
files[0].sha256d50a8a0c6b09735710d69f54b45a579b5bc8dab2f6aadc4be071f4ecb5097188
files[1].statusdownloaded
files[1].urlhttps://www.sasbdb.org/media/intensities_files/SASDCR9.dat
files[1].path/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.dat
files[1].size39601
files[1].sha2561cf3562caa7924d5df45c82880f36aa7d5dab4368b473137f0b9d6d57cb2b48d
files[1].rolecurve
files[2].statusdownloaded
files[2].urlhttps://www.sasbdb.org/media/p_of_R_files/SASDCR9.out
files[2].path/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.out
files[2].size32986
files[2].sha2569fa3108f778f003a01e3840181e217611e9e3540b19b28ee8eedf2a33c0c9032
files[2].rolepddf
files[3].statusdownloaded
files[3].urlhttps://www.sasbdb.org/media/sascif/sascif_files/SASDCR9.sascif
files[3].path/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.sascif
files[3].size7076
files[3].sha256ef9d8bae2ad718a0fe24f24bdeeef8cabb7d8c8901dc49f20f4334782880c0ce
files[3].rolesascif
files[4].statusdownloaded
files[4].urlhttps://www.sasbdb.org/media/zip_directories/SASDCR9.zip
files[4].path/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.zip
files[4].size419621
files[4].sha2569094c3680237676025ed221714fa4f13d805787b218a5e842236b2924be73113
files[4].rolefull_entry_zip
files[4].zip_member_count6
files[4].zip_validationcentral_directory_readable
View the complete summary.json source
{
  "code": "SASDCR9",
  "status": "Published",
  "type_of_curve": "SEC-SAS",
  "angular_unit": "1/A",
  "project": {
    "title": "Ternary complex of Kif2A-bound tandem tubulin heterodimers represents a kinesin-13-mediated microtubule depolymerization reaction intermediate.",
    "publication": {
      "title": "Ternary complex of Kif2A-bound tandem tubulin heterodimers represents a kinesin-13-mediated microtubule depolymerization reaction intermediate.",
      "author_list": "Trofimova D, Paydar M, Zara A, Talje L, Kwok BH, Allingham JS",
      "journal": "Nat Commun",
      "doi": "10.1038/s41467-018-05025-7",
      "pmid": "29980677",
      "published_date": "2018 Jul 6"
    },
    "status": "released",
    "submitted_date": "2017-11-28",
    "released_date": "2018-05-15"
  },
  "pddf_data": "https://www.sasbdb.org/media/p_of_R_files/SASDCR9.out",
  "intensities_data": "https://www.sasbdb.org/media/intensities_files/SASDCR9.dat",
  "intensities_log_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDCR9_dat_img.png",
  "intensities_kratky_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDCR9_kratky_img.png",
  "pddf_plot": "https://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDCR9_pofr_img.png",
  "intensities_guinier_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDCR9_guinier_img.png",
  "sascif_data": "https://www.sasbdb.org/media/sascif/sascif_files/SASDCR9.sascif",
  "experiment": {
    "instrument": {
      "detector": {
        "type": "CCD",
        "name": "Finger Lakes CCD",
        "resolution": 0.0
      },
      "name": "Cornell High Energy Synchrotron Source (CHESS)",
      "city": "Ithaca, NY",
      "country": "USA",
      "beamline_name": "G1",
      "beam_geometry": "",
      "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": "Designed Ankyrin Repeat Protein D1",
          "short_name": "DARPin D1",
          "sequence": "MGSHHHHHHGSDLGKKLLEAARAGQDDEVRILMANGADVNATDASGLTPLHLAATYGHLEIVEVLLKHGADVNAIDIMGSTPLHLAALIGHLEIVEVLLKHGADVNAVDTWGDTPLHLAAIMGHLEIVEVLLKHGADVNAQDKFGKTAFDISIDNGNEDLAEILQKLN",
          "organism": "synthetic construct",
          "uniprot_code": null,
          "uniprot_range_first": null,
          "uniprot_range_last": null,
          "oligomerization": "monomer",
          "molecular_type": "protein",
          "uniprot_sequence": null,
          "mw": 17.886,
          "total_mw": 17.886,
          "number_molecules": 1,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        },
        {
          "long_name": "Kinesin-like protein KIF2A",
          "short_name": "Kif2A",
          "sequence": "MGSSHHHHHHSSGLVPRGSSRRKSNCVKEVEKLQEKREKRRLQQQELREKRAQDVDATNPNYEIMCMIRDFRGSLDYRPLTTADPIDEHRICVCVRKRPLNKKETQMKDLDVITIPSKDVVMVHEPKQKVDLTRYLENQTFRFDYAFDDSAPNEMVYRFTARPLVETIFERGMATCFAYGQTGSGKTHTMGGDFSGKNQDCSKGIYALAARDVFLMLKKPNYKKLELQVYATFFEIYSGKVFDLLNRKTKLRVLEDGKQQVQVVGLQEREVKCVEDVLKLIDIGNSCRTSGQTSANAHSSRSHAVFQIILRRKGKLHGKFSLIDLAGNERGADTSSADRQTRLEGAEINKSLLALKECIRALGRNKPHTPFRASKLTQVLRDSFIGENSRTCMIATISPGMASCENTLNTLRYANRVKEL",
          "organism": "Homo sapiens",
          "uniprot_code": "O00139",
          "uniprot_range_first": 153,
          "uniprot_range_last": 553,
          "oligomerization": "monomer",
          "molecular_type": "protein",
          "uniprot_sequence": "MATANFGKIQIGIYVEIKRSDGRIHQAMVTSLNEDNESVTVEWIENGDTKGKEIDLESIF\nSLNPDLVPDEEIEPSPETPPPPASSAKVNKIVKNRRTVASIKNDPPSRDNRVVGSARARP\nSQFPEQSSSAQQNGSVSDISPVQAAKKEFGPPSRRKSNCVKEVEKLQEKREKRRLQQQEL\nREKRAQDVDATNPNYEIMCMIRDFRGSLDYRPLTTADPIDEHRICVCVRKRPLNKKETQM\nKDLDVITIPSKDVVMVHEPKQKVDLTRYLENQTFRFDYAFDDSAPNEMVYRFTARPLVET\nIFERGMATCFAYGQTGSGKTHTMGGDFSGKNQDCSKGIYALAARDVFLMLKKPNYKKLEL\nQVYATFFEIYSGKVFDLLNRKTKLRVLEDGKQQVQVVGLQEREVKCVEDVLKLIDIGNSC\nRTSGQTSANAHSSRSHAVFQIILRRKGKLHGKFSLIDLAGNERGADTSSADRQTRLEGAE\nINKSLLALKECIRALGRNKPHTPFRASKLTQVLRDSFIGENSRTCMIATISPGMASCENT\nLNTLRYANRVKELTVDPTAAGDVRPIMHHPPNQIDDLETQWGVGSSPQRDDLKLLCEQNE\nEEVSPQLFTFHEAVSQMVEMEEQVVEDHRAVFQESIRWLEDEKALLEMTEEVDYDVDSYA\nTQLEAILEQKIDILTELRDKVKSFRAALQEEEQASKQINPKRPRAL",
          "mw": 47.834,
          "total_mw": 47.834,
          "number_molecules": 1,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        },
        {
          "long_name": "Tubulin alpha-1B chain",
          "short_name": "alpha tubulin",
          "sequence": "MRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGKHVPRAVFVDLEPTVIDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLDRIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVDYGKKSKLEFSIYPAPQVSTAVVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLISQIVSSITASLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPANQMVKCDPRHGKYMACCLLYRGDVVPKDVNAAIATIKTKRSIQFVDWCPTGFKVGINYQPPTVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSEAREDMAALEKDYEEVGVDSVEGEGEEEGEEY",
          "organism": "Bos taurus",
          "uniprot_code": "P81947",
          "uniprot_range_first": null,
          "uniprot_range_last": null,
          "oligomerization": "dimer",
          "molecular_type": "protein",
          "uniprot_sequence": "MRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIGGGDDSFNTFFSETGAGK\nHVPRAVFVDLEPTVIDEVRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLD\nRIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVDYGKKSKLEFSIYPAPQVSTA\nVVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLISQIVSSITA\nSLRFDGALNVDLTEFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPAN\nQMVKCDPRHGKYMACCLLYRGDVVPKDVNAAIATIKTKRSIQFVDWCPTGFKVGINYQPP\nTVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYVGEGMEEGEFSE\nAREDMAALEKDYEEVGVDSVEGEGEEEGEEY",
          "mw": 50.151,
          "total_mw": 100.302,
          "number_molecules": 2,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        },
        {
          "long_name": "Tubulin beta-2B chain",
          "short_name": "beta tubulin",
          "sequence": "MREIVHIQAGQCGNQIGAKFWEVISDEHGIDPTGSYHGDSDLQLERINVYYNEATGNKYVPRAILVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVVRKESESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVMPSPKVSDTVVEPYNATLSVHQLVENTDETYSIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCLRFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDSKNMMAACDPRHGRYLTVAAIFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRGLKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVSEYQQYQDATADEQGEFEEEEGEDEA",
          "organism": "Bos taurus",
          "uniprot_code": "Q6B856",
          "uniprot_range_first": null,
          "uniprot_range_last": null,
          "oligomerization": "dimer",
          "molecular_type": "protein",
          "uniprot_sequence": "MREIVHIQAGQCGNQIGAKFWEVISDEHGIDPTGSYHGDSDLQLERINVYYNEATGNKYV\nPRAILVDLEPGTMDSVRSGPFGQIFRPDNFVFGQSGAGNNWAKGHYTEGAELVDSVLDVV\nRKESESCDCLQGFQLTHSLGGGTGSGMGTLLISKIREEYPDRIMNTFSVMPSPKVSDTVV\nEPYNATLSVHQLVENTDETYCIDNEALYDICFRTLKLTTPTYGDLNHLVSATMSGVTTCL\nRFPGQLNADLRKLAVNMVPFPRLHFFMPGFAPLTSRGSQQYRALTVPELTQQMFDSKNMM\nAACDPRHGRYLTVAAIFRGRMSMKEVDEQMLNVQNKNSSYFVEWIPNNVKTAVCDIPPRG\nLKMSATFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNMNDLVS\nEYQQYQDATADEQGEFEEEEGEDEA",
          "mw": 49.936,
          "total_mw": 99.872,
          "number_molecules": 2,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        }
      ],
      "buffer": {
        "name": "HEPES 20 mM, MgCl2 1mM, NaCl 150mM",
        "concentration_unit": null,
        "comment": null,
        "additive": null,
        "concentration": null,
        "pka": null,
        "ph": 7.2,
        "deuteration": null
      },
      "purity_method": null,
      "name": "Kif2A-tubulin-DARP complex in the presence of AMP-PNP",
      "ext_coefficient": null,
      "contrast": null,
      "specific_vol": null,
      "dry_vol": null,
      "absorbption": null,
      "deuteration": null,
      "mixture": null
    },
    "contributor": [
      {
        "affiliation": [
          {
            "short_name": null,
            "address": "Kingston, ON, Canada",
            "full_name": "Queen's University",
            "webpage": "http://www.queensu.ca/"
          }
        ],
        "contributor_name": "Daria",
        "contributor_surname": "Trofimova",
        "orcid": null
      }
    ],
    "concentration_method": null,
    "concentration_unit": null,
    "date": "2016-05-16",
    "storage_temperature": 4.0,
    "cell_temperature": 22.0,
    "exposure_time": 2.0,
    "number_of_frames": 1200,
    "wavelength": 0.1267,
    "sample_detector_distance": 1.47,
    "concentration_min": null,
    "concentration_max": 3.7,
    "sample_volume": null,
    "flow_rate": null,
    "s_min": 0.086,
    "s_max": 2.735,
    "total_exposure_time": null,
    "seccolumn": null
  },
  "fits": [
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDCR9_fit1_model1_img.png",
          "software": "DAMMIF",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "dummy",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDCR9_fit1_model1.pdb",
          "model_mw": 240.0,
          "bead_radius": 4.1,
          "log": null,
          "symmetry": "P1",
          "comment": null,
          "user": 260
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDCR9_fit1_fit_img.png",
      "software": "DAMMIF",
      "chi_square_value": 1.02,
      "p_value": 0.761362,
      "fit_residual_plot": "SASDCR9_fit1_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDCR9_fit1.fir",
      "fit_log": "https://www.sasbdb.org/media/fitting_files/log_files/S_A_Kif2ATubDARPin_A4_64_001_0434_big_comp_subst_01_qE84UBp.log",
      "software_version": null,
      "description": null
    },
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDCR9_fit2_model1_img.png",
          "software": "PDB (Protein Data Bank)",
          "pdb_link": [
            {
              "pdb_code": "6bbn",
              "ext_code": "6BBN",
              "ext_type": "pdb",
              "difference_with_model": "identical"
            }
          ],
          "model_title": null,
          "type_of_model": "atomic",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDCR9_fit2_model1.pdb",
          "model_mw": 253.4,
          "bead_radius": 1.9,
          "log": null,
          "symmetry": "P21",
          "comment": null,
          "user": 260
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDCR9_fit2_fit_img.png",
      "software": "CRYSOL",
      "chi_square_value": 1.087,
      "p_value": 0.600511,
      "fit_residual_plot": "SASDCR9_fit2_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDCR9_fit2.fit",
      "fit_log": "https://www.sasbdb.org/media/fitting_files/log_files/Kif2A_TubDar_Final00.log",
      "software_version": null,
      "description": null
    }
  ],
  "estimated_volume_method": null,
  "pddf_software": "ATSAS GNOM",
  "pddf_software_version": null,
  "i0_calibration_standard": null,
  "description": "For the SEC-SAXS analysis, a mixture of Kif2A, tubulin and DARPin was passed continuously through an X-ray sample cell via an in-line size exclusion column (GE Superdex 200 10/300 GL) at a flow rate of 1 ml/min. The column was pre-equilibrated with running buffer consisting of 20 mM HEPES, 150 mM NaCl, 1 mM MgCl2 pH 7.2. The protein sample was prepared at 25 μM tubulin, 27 μM DARP in and 20 μM Kif2A and injected into a 100 μL loop. Approximately 1200 two-second exposures were collected per sample, and 100 buffer profiles preceding the elution peaks were averaged and used for background subtraction.",
  "experiment_description": "Synchrotron SAXS data from solutions of Kif2A-tubulin-DARPin complex in presence of AMP-PNP in 20 mM HEPES, 1 mM MgCl2, 150 mM NaCl, pH 7.2 were collected at the BioSAXS G1 beam line at the Cornell High Energy Synchrotron Source (CHESS; Ithaca, NY, USA) using a CCD Finger Lakes CCD detector at a sample-detector distance of 1.5 m and at a wavelength of λ = 0.1267 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). 1200 successive 2 second frames were collected using size exclusion chromatography SAXS (SEC-SAXS; 3.70 mg/ml sample injection at 22°C).",
  "tags": [],
  "intensity_unit": "arbitrary",
  "experimental_mw": 258.5,
  "experimental_mw_error": null,
  "guinier_i0_mw": null,
  "guinier_i0_mw_error": null,
  "porod_mw": 279.7,
  "porod_mw_error": null,
  "pddf_i0": 0.0298,
  "pddf_i0_error": 0.00029,
  "guinier_i0": 0.02949,
  "guinier_i0_error": 0.0002,
  "pddf_rg": 5.6,
  "pddf_rg_error": 0.03,
  "guinier_rg": 5.41,
  "guinier_rg_error": 0.05,
  "pddf_dmax": 19.5,
  "pddf_dmax_error": null,
  "porod_volume": 374.0,
  "porod_volume_error": null,
  "estimated_volume": null,
  "estimated_volume_error": null,
  "guinier_point_first": 4,
  "guinier_point_last": 26,
  "pddf_point_first": null,
  "pddf_point_last": null,
  "i0_calibration_standard_data": null,
  "intensities_log_log_plot": "SASDCR9_datloglog_img.png",
  "symmetry": null,
  "last_modified": "2019-12-06T13:07:15.624532+01:00",
  "bragg_peak": []
}
View the complete manifest.json source
{
  "code": "SASDCR9",
  "status": "success",
  "started_at": "2026-08-11T16:20:31.095509+00:00",
  "finished_at": "2026-08-11T16:20:39.437470+00:00",
  "source_last_modified": "2019-12-06T13:07:15.624532+01:00",
  "files": [
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/rest-api/entry/summary/SASDCR9/",
      "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/summary.json",
      "size": 13961,
      "sha256": "d50a8a0c6b09735710d69f54b45a579b5bc8dab2f6aadc4be071f4ecb5097188"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/intensities_files/SASDCR9.dat",
      "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.dat",
      "size": 39601,
      "sha256": "1cf3562caa7924d5df45c82880f36aa7d5dab4368b473137f0b9d6d57cb2b48d",
      "role": "curve"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/p_of_R_files/SASDCR9.out",
      "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.out",
      "size": 32986,
      "sha256": "9fa3108f778f003a01e3840181e217611e9e3540b19b28ee8eedf2a33c0c9032",
      "role": "pddf"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/sascif/sascif_files/SASDCR9.sascif",
      "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.sascif",
      "size": 7076,
      "sha256": "ef9d8bae2ad718a0fe24f24bdeeef8cabb7d8c8901dc49f20f4334782880c0ce",
      "role": "sascif"
    },
    {
      "status": "downloaded",
      "url": "https://www.sasbdb.org/media/zip_directories/SASDCR9.zip",
      "path": "/data/saxsdb/sasbdb/entries/r9/sasdcr9/source/SASDCR9.zip",
      "size": 419621,
      "sha256": "9094c3680237676025ed221714fa4f13d805787b218a5e842236b2924be73113",
      "role": "full_entry_zip",
      "zip_member_count": 6,
      "zip_validation": "central_directory_readable"
    }
  ]
}