SASDF97

Complex of Binary toxin receptor (Cqm1) with deuterated BinB component protein in 100% D2O

Data type: SASBDB experimental data Status: Published Curve type: Single concentration Last updated: 2020-02-03T17:29:13.561891+01:00

This data is for a stable complex of receptor Cqm1 protein and deuterated BinB component of mosquito-larvicidal Binary (BinAB) toxin. Deuterated BinB (dBinB) protein was synthesized using E. coli based protein expression system grown in M9+ medium in D2O after three step adaption. The extent of deuteration for dBinB was estimated from contrast (p − s)2 values to be ~77%. Theoretical molecular weight of the dBinB protein includes 77% of D atoms. SANS analysis (DAMMIN and CRYSON fit) suggest that deuterated BinB (dBinB), expectedly, is fully matched out against the used solvent (100% D2O) and only monomer of Cqm1 is modelled from SANS experiments

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1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · Complex of Binary toxin receptor (Cqm1) with deuterated BinB component protein in 100% D2O

Concentration— – 1.0 Buffer / pH25 mM HEPES, pH 7.5, 25 mM NaCl, in 100% D2O / 7.5
Experimental temperature25.0 Facility / beamlineDhruva Reactor, Bhabha Atomic Research Centre / SANS-I facility
Wavelength0.52 nmExposure43200.0 s × 1

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Binary toxin receptor Cqm1 protein
View sequence
MHHHHHHSSGVDLGTENLYFQSMREPDSKDWYQHATFYQIYPRSFLDSNGDGIGDLAGITSKMKYLADIGIDATWLSPPFKSPLKDFGYDVSDFYAIQPEYGNLTDFDKLVEESHKNGIKLMLDFIPNHSSDQHEWFVKSVVRDPEYSDFYVWRPPATGGGPPNNWISVFGGSAWTYNQARGEYYLHQFTPQQPDLNYRNPKVLAEMTKMLFFWLDRGVDGFRLDAINHMFEDEQFRDEPLSGWGQPGEYDSLDHIYTKDIPDVYDVVYNWRDQMDKYSAEKGRTIILMTEAYSSIEGTMLYYESADRKRQGAHMPFNFQLIYDFKKEQNAVGLKSSIDWWMNNMPARHTPSWVAGSHDHSRVASRVGLDRVDQVMTLLHTLPGTSITYYGEEVAMQDFKEAQQFDNRDPNRTPMQWDSSTSAGFSTNTNTWLRVHPDYARYNVDVMQKNPQSTFHHFQHLTKLRRHRTMQSGEYVHKTVGTKVYALLRELRGEDSFLTVLNMAGAEDTVDLGDFVNLPQKMRVEVAQPNSKSKAGNEVDISKLTLGPYDSVVLRATVSSA
proteinsynthetic construct——–—monomerMolecule count 164.665 kDa
Deuterated BinB component of mosquito-larvicidal Binary toxin
View sequence
MGSSHHHHHHSSGLVPRGSMCDSKDNSGVSEKCGKKFTNYPLNTTPTSLNYNLPEISKKFYNLKNKYSRNGYGLSKTEFPSSIENCPSNEYSIMYDNKDPRFLIRFLLDDGRYIIADRDDGEVFDEAPTYLDNNNHPIISRHYTGEERQKFEQVGSGDYITGEQFFQFYTQNKTRVLSNCRALDSRTILLSTAKIFPIYPPASETQLTAFVNSSFYAAAIPQLPQTSLLENIPEPTSLDDSGVLPKDAVRAVKGSALLPCIIVHDPNLNNSDKMKFNTYYLLEYKEYWHQLWSQIIPAHQTVKIQERTGISEVVQNSMIEDLNMYIGADFGMLFYFRSSGFKEQITRGLNRPLSQTTTQLGERVEEMEYYNSNDLDVRYVKYALAREFTLKRVNGEIVKNWVAVDYRLAGIQSYPNAPITNPLTLTKHTIIRCENSYDGHIFKTPLIFKNGEVIVKTNEELIPKINQ
proteinsynthetic construct——–—monomerMolecule count 156.4 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
1100[3]0.01619–0.19905 1/AHas uncertainty columnMissing 01sasbdb/entries/97/sasdf97/source/SASDF97.dat
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2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)7.29—Å
i0Guinier0.0480.00131/cm
i0P(r)0.049630.00221/cm
mwExperimental70.6—kDa
mwGuinier I(0)66.5—kDa
rgGuinier1.870.43Å
rgP(r)2.180.121Å

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 2 · CRYSOL

χ²: 0.348CorMap p: 0.00032Unit: 1/A

Fit against DAMMIN dummy model suggested presence of only Cqm1 monomer. This is in agreement with "Contrast matched" SANS experiment, as scattering length density of deuterated BinB (dBinB) nearly matches that of solvent D2O (100%) and dBinB contribution to the scattering is expected to be eliminated.

ModelName / TypeSoftwareSymmetryModel MWPDB DeclarationSource file
1—atomicPDB (Protein Data Bank) —60.956K5PModel Image Log
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4. Source File Index Source Files

▶

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 HEPES, pH 7.5, 25 mM NaCl, in 100% D2OBuffer concentration—
pH7.5Additives—
Buffer descriptionSANS experiment were carried out in 100% D2O
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2019-04-23Storage / measurement temperature25.0 / 25.0
Exposure time43200.0Frames1
Wavelength0.52Sample-to-detector distance2.0
Sourceneutron sourceDetector1 m long He3 position sensitive detector
Facility / beamlineDhruva Reactor, Bhabha Atomic Research Centre / SANS-I facility · Mumbai, India
q range0.162 – 1.99Sample 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:199 field values
Field pathRaw value
codeSASDF97
statusPublished
type_of_curveSingle concentration
angular_unit1/A
project.titleSmall-angle neutron scattering studies suggest the mechanism of BinAB protein internalization
project.publication.titleSmall-angle neutron scattering studies suggest the mechanism of BinAB protein internalization
project.publication.author_listSharma M, Aswal V, Kumar V, Chidambaram R
project.publication.journalIUCrJ
project.publication.doi10.1107/S2052252519017159
project.publication.pmidnull
project.publication.published_date2020 Jan 25
project.statusreleased
project.submitted_date2019-06-09
project.released_date2020-02-03
pddf_datahttps://www.sasbdb.org/media/p_of_R_files/SASDF97.out
intensities_datahttps://www.sasbdb.org/media/intensities_files/SASDF97.dat
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experiment.instrument.detector.typeCustom-built
experiment.instrument.detector.name1 m long He3 position sensitive detector
experiment.instrument.detector.resolution12.0
experiment.instrument.nameDhruva Reactor, Bhabha Atomic Research Centre
experiment.instrument.cityMumbai
experiment.instrument.countryIndia
experiment.instrument.beamline_nameSANS-I facility
experiment.instrument.beam_geometrynull
experiment.instrument.type_of_sourceneutron source
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_nameBinary toxin receptor Cqm1 protein
experiment.sample.molecule[0].short_nameCqm1
experiment.sample.molecule[0].sequenceMHHHHHHSSGVDLGTENLYFQSMREPDSKDWYQHATFYQIYPRSFLDSNGDGIGDLAGITSKMKYLADIGIDA TWLSPPFKSPLKDFGYDVSDFYAIQPEYGNLTDFDKLVEESHKNGIKLMLDFIPNHSSDQHEWFVKSVVRDPE YSDFYVWRPPATGGGPPNNWISVFGGSAWTYNQARGEYYLHQFTPQQPDLNYRNPKVLAEMTKMLFFWLDRGV DGFRLDAINHMFEDEQFRDEPLSGWGQPGEYDSLDHIYTKDIPDVYDVVYNWRDQMDKYSAEKGRTIILMTEA YSSIEGTMLYYESADRKRQGAHMPFNFQLIYDFKKEQNAVGLKSSIDWWMNNMPARHTPSWVAGSHDHSRVAS RVGLDRVDQVMTLLHTLPGTSITYYGEEVAMQDFKEAQQFDNRDPNRTPMQWDSSTSAGFSTNTNTWLRVHPD YARYNVDVMQKNPQSTFHHFQHLTKLRRHRTMQSGEYVHKTVGTKVYALLRELRGEDSFLTVLNMAGAEDTVD LGDFVNLPQKMRVEVAQPNSKSKAGNEVDISKLTLGPYDSVVLRATVSSA
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].mw64.665
experiment.sample.molecule[0].total_mw64.665
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_nameDeuterated BinB component of mosquito-larvicidal Binary toxin
experiment.sample.molecule[1].short_namedBinB
experiment.sample.molecule[1].sequenceMGSSHHHHHHSSGLVPRGSMCDSKDNSGVSEKCGKKFTNYPLNTTPTSLNYNLPEISKKF YNLKNKYSRNGYGLSKTEFPSSIENCPSNEYSIMYDNKDPRFLIRFLLDDGRYIIADRDD GEVFDEAPTYLDNNNHPIISRHYTGEERQKFEQVGSGDYITGEQFFQFYTQNKTRVLSNC RALDSRTILLSTAKIFPIYPPASETQLTAFVNSSFYAAAIPQLPQTSLLENIPEPTSLDD SGVLPKDAVRAVKGSALLPCIIVHDPNLNNSDKMKFNTYYLLEYKEYWHQLWSQIIPAHQ TVKIQERTGISEVVQNSMIEDLNMYIGADFGMLFYFRSSGFKEQITRGLNRPLSQTTTQL GERVEEMEYYNSNDLDVRYVKYALAREFTLKRVNGEIVKNWVAVDYRLAGIQSYPNAPIT NPLTLTKHTIIRCENSYDGHIFKTPLIFKNGEVIVKTNEELIPKINQ
experiment.sample.molecule[1].organismsynthetic construct
experiment.sample.molecule[1].uniprot_codenull
experiment.sample.molecule[1].uniprot_range_firstnull
experiment.sample.molecule[1].uniprot_range_lastnull
experiment.sample.molecule[1].oligomerizationmonomer
experiment.sample.molecule[1].molecular_typeprotein
experiment.sample.molecule[1].uniprot_sequencenull
experiment.sample.molecule[1].mw56.4
experiment.sample.molecule[1].total_mw56.4
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.buffer.name25 mM HEPES, pH 7.5, 25 mM NaCl, in 100% D2O
experiment.sample.buffer.concentration_unitnull
experiment.sample.buffer.commentSANS experiment were carried out in 100% D2O
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.nameComplex of Binary toxin receptor (Cqm1) with deuterated BinB component protein in 100% D2O
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].addressMumbai 400085, INDIA
experiment.contributor[0].affiliation[0].full_nameBhabha Atomic Research Centre
experiment.contributor[0].affiliation[0].webpagenull
experiment.contributor[0].contributor_nameVinay
experiment.contributor[0].contributor_surnameKumar
experiment.contributor[0].orcidhttps://orcid.org/0000-0002-7619-6236
experiment.concentration_methodnull
experiment.concentration_unitnull
experiment.date2019-04-23
experiment.storage_temperature25.0
experiment.cell_temperature25.0
experiment.exposure_time43200.0
experiment.number_of_frames1
experiment.wavelength0.52
experiment.sample_detector_distance2.0
experiment.concentration_minnull
experiment.concentration_max1.0
experiment.sample_volumenull
experiment.flow_ratenull
experiment.s_min0.162
experiment.s_max1.99
experiment.total_exposure_timenull
experiment.seccolumnnull
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fits[0].models[0].softwareDAMMIN
fits[0].models[0].pdb_link[]
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fits[0].models[0].type_of_modeldummy
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fits[0].models[0].bead_radius1.9
fits[0].models[0].lognull
fits[0].models[0].symmetryP1
fits[0].models[0].commentdBinB component is fully 'contrast matched' with 100% D2O,
fits[0].models[0].user457
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fits[0].softwareDAMMIN
fits[0].chi_square_value0.318
fits[0].p_value0.086659
fits[0].fit_residual_plotSASDF97_fit1_fitresiduals_img.png
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fits[0].software_versionnull
fits[0].description
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fits[1].models[0].softwarePDB (Protein Data Bank)
fits[1].models[0].pdb_link[0].pdb_code6k5p
fits[1].models[0].pdb_link[0].ext_code6K5P
fits[1].models[0].pdb_link[0].ext_typepdb
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fits[1].models[0].commentnull
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fits[1].softwareCRYSOL
fits[1].chi_square_value0.348
fits[1].p_value0.00032
fits[1].fit_residual_plotfit4columns2362_fitresiduals_img.png
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fits[1].software_versionnull
fits[1].descriptionFit against DAMMIN dummy model suggested presence of only Cqm1 monomer. This is in agreement with "Contrast matched" SANS experiment, as scattering length density of deuterated BinB (dBinB) nearly matches that of solvent D2O (100%) and dBinB contribution to the scattering is expected to be eliminated.
estimated_volume_methodnull
pddf_softwareATSAS GNOM
pddf_software_version4.5a
i0_calibration_standardnull
descriptionThis data is for a stable complex of receptor Cqm1 protein and deuterated BinB component of mosquito-larvicidal Binary (BinAB) toxin. Deuterated BinB (dBinB) protein was synthesized using E. coli based protein expression system grown in M9+ medium in D2O after three step adaption. The extent of deuteration for dBinB was estimated from contrast (p − s)2 values to be ~77%. Theoretical molecular weight of the dBinB protein includes 77% of D atoms. SANS analysis (DAMMIN and CRYSON fit) suggest that deuterated BinB (dBinB), expectedly, is fully matched out against the used solvent (100% D2O) and only monomer of Cqm1 is modelled from SANS experiments
experiment_descriptionnull
tags[]
intensity_unit1/cm
experimental_mw70.6
experimental_mw_errornull
guinier_i0_mw66.5
guinier_i0_mw_errornull
porod_mwnull
porod_mw_errornull
pddf_i00.04963
pddf_i0_error0.0022
guinier_i00.048
guinier_i0_error0.0013
pddf_rg2.18
pddf_rg_error0.121
guinier_rg1.87
guinier_rg_error0.43
pddf_dmax7.29
pddf_dmax_errornull
porod_volumenull
porod_volume_errornull
estimated_volumenull
estimated_volume_errornull
guinier_point_first1
guinier_point_last29
pddf_point_firstnull
pddf_point_lastnull
i0_calibration_standard_datanull
intensities_log_log_plotSASDF97_datloglog_img.png
symmetrynull
last_modified2020-02-03T17:29:13.561891+01:00
bragg_peak[]
manifest.json:36 field values
Field pathRaw value
codeSASDF97
statussuccess
started_at2026-08-11T15:24:32.231856+00:00
finished_at2026-08-11T15:24:40.662967+00:00
source_last_modified2020-02-03T17:29:13.561891+01:00
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View the complete summary.json source
{
  "code": "SASDF97",
  "status": "Published",
  "type_of_curve": "Single concentration",
  "angular_unit": "1/A",
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    "title": "Small-angle neutron scattering studies suggest the mechanism of BinAB protein internalization",
    "publication": {
      "title": "Small-angle neutron scattering studies suggest the mechanism of BinAB protein internalization",
      "author_list": "Sharma M, Aswal V, Kumar V, Chidambaram R",
      "journal": "IUCrJ",
      "doi": "10.1107/S2052252519017159",
      "pmid": null,
      "published_date": "2020 Jan 25"
    },
    "status": "released",
    "submitted_date": "2019-06-09",
    "released_date": "2020-02-03"
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            "address": "Mumbai 400085, INDIA",
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        "contributor_name": "Vinay",
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  "last_modified": "2020-02-03T17:29:13.561891+01:00",
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View the complete manifest.json source
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