SASDVY5

pseudoamylase BAM9 bound to alpha-amylase AMY3

Data type: SASBDB experimental data Status: Published Curve type: SEC-SAS Last updated: 2025-01-23T14:23:02.048022+01:00

Purified protein samples of AMY3 and BAM9 combined were shipped overnight at 4°C and analyzed using SEC-SAXS with in-line with UV/vis absorbance at 280nm and Multi-angle light scattering (MALS). Radially averaged SAXS data files were processed and analyzed in Scatter IV and RAW (Hopkins, 2024).

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1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · pseudoamylase BAM9 bound to alpha-amylase AMY3

Concentration— – 4.0 Buffer / pH20 mM HEPES, 100 mM NaCl, 0.2 mM TCEP / 7.0
Experimental temperature10.0 Facility / beamlineAdvanced Light Source (ALS) / 12.3.1 (SIBYLS)
Wavelength0.1027 nmExposure2.0 s × 20

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Inactive beta-amylase 9
View sequence
PFLKSTPKSKSLESVKLFVGLPLDTVSDCNNVNHLKAITAGLKALKLLGVEGIELPIFWGVVEKEAAGKYEWSGYLAVAEIVKKVGLKLHASLSFHGSKQTEIGLPDWVAKIGDAEPGIYFTDRYGQQYKDCLSFAVDDVPVLDGKTPMEVYRGFCESFKSAFADYMGNTITGITLGLGPDGELKYPSHQHNAKLSGAGEFQCYDKHMLSALKGYAESTGNPLWGLGGPHDAPAYDQQPNSSSFFSDGGSWESQYGDFFLSWYSSLLTSHADRVLSVASSAFSGIGVPLCGKLPLLHQWHKLRSHPSELTAGFYSSNGQDRYEAIAEIFAKNSCRMIIPGMDLSDEHQSPESLSSPESLLGHIKTSCKKQGVVVSGQNSSTPVPGGFERIVENLKDENVGIDLFTYQRMGALFFSPEHFHAFTVFVRNLSQFELSSDDQASEAEVEAETASIGSGTGAPSLQTA
proteinArabidopsis thalianaQ8VYW273–536monomerMolecule count 150.296 kDa
Alpha-amylase 3, chloroplastic
View sequence
MNKSPVAIRATSSDTAVVETAQSDDVIFKEIFPVQRIEKAEGKIYVRLKEVKEKNWELSVGCSIPGKWILHWGVSYVGDTGSEWDQPPEDMRPPGSIAIKDYAIETPLKKLSEGDSFFEVAINLNLESSVAALNFVLKDEETGAWYQHKGRDFKVPLVDDVPDNGNLIGAKKGFGALGQLSNIPLKQDKSSAETDSIEERKGLQEFYEEMPISKRVADDNSVSVTARKCPETSKNIVSIETDLPGDVTVHWGVCKNGTKKWEIPSEPYPEETSLFKNKALRTRLQRKDDGNGSFGLFSLDGKLEGLCFVLKLNENTWLNYRGEDFYVPFLTSSSSPVETEAAQVSKPKRKTDKEVSASGFTKEIITEIRNLAIDISSHKNQKTNVKEVQENILQEIEKLAAEAYSIFRSTTPAFSEEGVLEAEADKPDIKISSGTGSGFEILCQGFNWESNKSGRWYLELQEKADELASLGFTVLWLPPPTESVSPEGYMPKDLYNLNSRYGTIDELKDTVKKFHKVGIKVLGDAVLNHRCAHFKNQNGVWNLFGGRLNWDDRAVVADDPHFQGRGNKSSGDNFHAAPNIDHSQDFVRKDIKEWLCWMMEEVGYDGWRLDFVRGFWGGYVKDYMDASKPYFAVGEYWDSLSYTYGEMDYNQDAHRQRIVDWINATSGAAGAFDVTTKGILHTALQKCEYWRLSDPKGKPPGVVGWWPSRAVTFIENHDTGSTQGHWRFPEGKEMQGYAYILTHPGTPAVFFDHIFSDYHSEIAALLSLRNRQKLHCRSEVNIDKSERDVYAAIIDEKVAMKIGPGHYEPPNGSQNWSVAVEGRDYKVWETS
proteinArabidopsis thalianaQ94A4157–887monomerMolecule count 193.604 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
1912[3]0.011402–0.472902 1/AHas uncertainty columnMissing 087sasbdb/entries/y5/sasdvy5/source/SASDVY5.dat
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2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)25.5—Å
i0Guinier77.6681—arbitrary
i0P(r)89.991.48arbitrary
mwExperimental146.8—kDa
mwPorod200.0—kDa
porod_volumePorod379.7—ų
rgGuinier5.0471.431Å
rgP(r)6.520.11Å

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

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3. Source Fits and Models Source Fits & Models

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4. Source File Index Source Files

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5. Experiment Description and Publication Experiment & Publication

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6. Complete Source Record Complete Source Record

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

Open the original SASBDB entry

Buffer and Sample Properties

Buffer name20 mM HEPES, 100 mM NaCl, 0.2 mM TCEPBuffer concentration—
pH7.0Additives—
Buffer description—
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2023-05-16Storage / measurement temperature-80.0 / 10.0
Exposure time2.0Frames20
Wavelength0.1027Sample-to-detector distance2.1
SourceX-ray synchrotronDetectorPilatus3 X 2M
Facility / beamlineAdvanced Light Source (ALS) / 12.3.1 (SIBYLS) · Berkeley, CA, USA
q range0.114 – 4.729Sample 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:173 field values
Field pathRaw value
codeSASDVY5
statusPublished
type_of_curveSEC-SAS
angular_unit1/A
project.titleThe Pseudoenzyme β‐Amylase9 From Arabidopsis Activates α‐Amylase3: A Possible Mechanism to Promote Stress‐Induced Starch Degradation
project.publication.titleThe Pseudoenzyme β‐Amylase9 From Arabidopsis Activates α‐Amylase3: A Possible Mechanism to Promote Stress‐Induced Starch Degradation
project.publication.author_listBerndsen C, Storm A, Sardelli A, Hossain S, Clermont K, McFather L, Connor M, Monroe J
project.publication.journalProteins: Structure, Function, and Bioinformatics
project.publication.doi10.1002/prot.26803
project.publication.pmidnull
project.publication.published_date2025 Jan 23
project.statusreleased
project.submitted_date2024-07-30
project.released_date2025-01-20
pddf_datahttps://www.sasbdb.org/media/p_of_R_files/SASDVY5.out
intensities_datahttps://www.sasbdb.org/media/intensities_files/SASDVY5.dat
intensities_log_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDVY5_dat_img.png
intensities_kratky_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDVY5_kratky_img.png
pddf_plothttps://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDVY5_pofr_img.png
intensities_guinier_plothttps://www.sasbdb.org/media/intensities_files/scattering_plots/SASDVY5_guinier_img.png
sascif_datahttps://www.sasbdb.org/media/sascif/sascif_files/SASDVY5.sascif
experiment.instrument.detector.typenull
experiment.instrument.detector.namePilatus3 X 2M
experiment.instrument.detector.resolution172.0
experiment.instrument.nameAdvanced Light Source (ALS)
experiment.instrument.cityBerkeley, CA
experiment.instrument.countryUSA
experiment.instrument.beamline_name12.3.1 (SIBYLS)
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_nameInactive beta-amylase 9
experiment.sample.molecule[0].short_nameBAM9
experiment.sample.molecule[0].sequencePFLKSTPKSKSLESVKLFVGLPLDTVSDCNNVNHLKAITAGLKALKLLGVEGIELPIFWGVVEKEAAGKYEWSGYLAVAEIVKKVGLKLHASLSFHGSKQTEIGLPDWVAKIGDAEPGIYFTDRYGQQYKDCLSFAVDDVPVLDGKTPMEVYRGFCESFKSAFADYMGNTITGITLGLGPDGELKYPSHQHNAKLSGAGEFQCYDKHMLSALKGYAESTGNPLWGLGGPHDAPAYDQQPNSSSFFSDGGSWESQYGDFFLSWYSSLLTSHADRVLSVASSAFSGIGVPLCGKLPLLHQWHKLRSHPSELTAGFYSSNGQDRYEAIAEIFAKNSCRMIIPGMDLSDEHQSPESLSSPESLLGHIKTSCKKQGVVVSGQNSSTPVPGGFERIVENLKDENVGIDLFTYQRMGALFFSPEHFHAFTVFVRNLSQFELSSDDQASEAEVEAETASIGSGTGAPSLQTA
experiment.sample.molecule[0].organismArabidopsis thaliana
experiment.sample.molecule[0].uniprot_codeQ8VYW2
experiment.sample.molecule[0].uniprot_range_first73
experiment.sample.molecule[0].uniprot_range_last536
experiment.sample.molecule[0].oligomerizationmonomer
experiment.sample.molecule[0].molecular_typeprotein
experiment.sample.molecule[0].uniprot_sequenceMEVSVIGNPQARICRAELAYRELGFRFGSDVISGESRNRVSFCNQSSKWKEIAIRCSSRS VKCEAIVSDDASPFLKSTPKSKSLESVKLFVGLPLDTVSDCNNVNHLKAITAGLKALKLL GVEGIELPIFWGVVEKEAAGKYEWSGYLAVAEIVKKVGLKLHASLSFHGSKQTEIGLPDW VAKIGDAEPGIYFTDRYGQQYKDCLSFAVDDVPVLDGKTPMEVYRGFCESFKSAFADYMG NTITGITLGLGPDGELKYPSHQHNAKLSGAGEFQCYDKHMLSALKGYAESTGNPLWGLGG PHDAPAYDQQPNSSSFFSDGGSWESQYGDFFLSWYSSLLTSHADRVLSVASSAFSGIGVP LCGKLPLLHQWHKLRSHPSELTAGFYSSNGQDRYEAIAEIFAKNSCRMIIPGMDLSDEHQ SPESLSSPESLLGHIKTSCKKQGVVVSGQNSSTPVPGGFERIVENLKDENVGIDLFTYQR MGALFFSPEHFHAFTVFVRNLSQFELSSDDQASEAEVEAETASIGSGTGAPSLQTA
experiment.sample.molecule[0].mw50.296
experiment.sample.molecule[0].total_mw50.296
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_descriptionBAM9 expressed from a pETDeut-1 vector
experiment.sample.molecule[1].long_nameAlpha-amylase 3, chloroplastic
experiment.sample.molecule[1].short_nameAMY3
experiment.sample.molecule[1].sequenceMNKSPVAIRATSSDTAVVETAQSDDVIFKEIFPVQRIEKAEGKIYVRLKEVKEKNWELSVGCSIPGKWILHWGVSYVGDTGSEWDQPPEDMRPPGSIAIKDYAIETPLKKLSEGDSFFEVAINLNLESSVAALNFVLKDEETGAWYQHKGRDFKVPLVDDVPDNGNLIGAKKGFGALGQLSNIPLKQDKSSAETDSIEERKGLQEFYEEMPISKRVADDNSVSVTARKCPETSKNIVSIETDLPGDVTVHWGVCKNGTKKWEIPSEPYPEETSLFKNKALRTRLQRKDDGNGSFGLFSLDGKLEGLCFVLKLNENTWLNYRGEDFYVPFLTSSSSPVETEAAQVSKPKRKTDKEVSASGFTKEIITEIRNLAIDISSHKNQKTNVKEVQENILQEIEKLAAEAYSIFRSTTPAFSEEGVLEAEADKPDIKISSGTGSGFEILCQGFNWESNKSGRWYLELQEKADELASLGFTVLWLPPPTESVSPEGYMPKDLYNLNSRYGTIDELKDTVKKFHKVGIKVLGDAVLNHRCAHFKNQNGVWNLFGGRLNWDDRAVVADDPHFQGRGNKSSGDNFHAAPNIDHSQDFVRKDIKEWLCWMMEEVGYDGWRLDFVRGFWGGYVKDYMDASKPYFAVGEYWDSLSYTYGEMDYNQDAHRQRIVDWINATSGAAGAFDVTTKGILHTALQKCEYWRLSDPKGKPPGVVGWWPSRAVTFIENHDTGSTQGHWRFPEGKEMQGYAYILTHPGTPAVFFDHIFSDYHSEIAALLSLRNRQKLHCRSEVNIDKSERDVYAAIIDEKVAMKIGPGHYEPPNGSQNWSVAVEGRDYKVWETS
experiment.sample.molecule[1].organismArabidopsis thaliana
experiment.sample.molecule[1].uniprot_codeQ94A41
experiment.sample.molecule[1].uniprot_range_first57
experiment.sample.molecule[1].uniprot_range_last887
experiment.sample.molecule[1].oligomerizationmonomer
experiment.sample.molecule[1].molecular_typeprotein
experiment.sample.molecule[1].uniprot_sequenceMSTVPIESLLHHSYLRHNSKVNRGNRSFIPISLNLRSHFTSNKLLHSIGKSVGVSSMNKS PVAIRATSSDTAVVETAQSDDVIFKEIFPVQRIEKAEGKIYVRLKEVKEKNWELSVGCSI PGKWILHWGVSYVGDTGSEWDQPPEDMRPPGSIAIKDYAIETPLKKLSEGDSFFEVAINL NLESSVAALNFVLKDEETGAWYQHKGRDFKVPLVDDVPDNGNLIGAKKGFGALGQLSNIP LKQDKSSAETDSIEERKGLQEFYEEMPISKRVADDNSVSVTARKCPETSKNIVSIETDLP GDVTVHWGVCKNGTKKWEIPSEPYPEETSLFKNKALRTRLQRKDDGNGSFGLFSLDGKLE GLCFVLKLNENTWLNYRGEDFYVPFLTSSSSPVETEAAQVSKPKRKTDKEVSASGFTKEI ITEIRNLAIDISSHKNQKTNVKEVQENILQEIEKLAAEAYSIFRSTTPAFSEEGVLEAEA DKPDIKISSGTGSGFEILCQGFNWESNKSGRWYLELQEKADELASLGFTVLWLPPPTESV SPEGYMPKDLYNLNSRYGTIDELKDTVKKFHKVGIKVLGDAVLNHRCAHFKNQNGVWNLF GGRLNWDDRAVVADDPHFQGRGNKSSGDNFHAAPNIDHSQDFVRKDIKEWLCWMMEEVGY DGWRLDFVRGFWGGYVKDYMDASKPYFAVGEYWDSLSYTYGEMDYNQDAHRQRIVDWINA TSGAAGAFDVTTKGILHTALQKCEYWRLSDPKGKPPGVVGWWPSRAVTFIENHDTGSTQG HWRFPEGKEMQGYAYILTHPGTPAVFFDHIFSDYHSEIAALLSLRNRQKLHCRSEVNIDK SERDVYAAIIDEKVAMKIGPGHYEPPNGSQNWSVAVEGRDYKVWETS
experiment.sample.molecule[1].mw93.604
experiment.sample.molecule[1].total_mw93.604
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_description
experiment.sample.buffer.name20 mM HEPES, 100 mM NaCl, 0.2 mM TCEP
experiment.sample.buffer.concentration_unitnull
experiment.sample.buffer.commentnull
experiment.sample.buffer.additivenull
experiment.sample.buffer.concentrationnull
experiment.sample.buffer.pkanull
experiment.sample.buffer.ph7.0
experiment.sample.buffer.deuterationnull
experiment.sample.purity_methodnull
experiment.sample.namepseudoamylase BAM9 bound to alpha-amylase AMY3
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].addressHarrisonburg, Virginia, USA
experiment.contributor[0].affiliation[0].full_nameJames Madison University
experiment.contributor[0].affiliation[0].webpagehttps://www.jmu.edu/
experiment.contributor[0].contributor_nameChristopher
experiment.contributor[0].contributor_surnameBerndsen
experiment.contributor[0].orcidhttps://orcid.org/0000-0002-4285-4341
experiment.concentration_methodnull
experiment.concentration_unitnull
experiment.date2023-05-16
experiment.storage_temperature-80.0
experiment.cell_temperature10.0
experiment.exposure_time2.0
experiment.number_of_frames20
experiment.wavelength0.1027
experiment.sample_detector_distance2.1
experiment.concentration_minnull
experiment.concentration_max4.0
experiment.sample_volumenull
experiment.flow_ratenull
experiment.s_min0.114
experiment.s_max4.729
experiment.total_exposure_timenull
experiment.seccolumn40
fits[0].models[0].model_plothttps://www.sasbdb.org/media/pdb_file/images/SASDVY5_fit1_model1_img.png
fits[0].models[0].softwareBILBOMD
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/SASDVY5_fit1_model1.pdb
fits[0].models[0].model_mw146.8
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].user394
fits[0].fit_unit1/A
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fits[0].softwareFoXS
fits[0].chi_square_value1.405163
fits[0].p_value0.0
fits[0].fit_residual_plotSASDVY5_fit1_fitfoxsresiduals_img.png
fits[0].fit_datahttps://www.sasbdb.org/media/fitting_files/SASDVY5_fit1.dat
fits[0].fit_lognull
fits[0].software_versionnull
fits[0].description
estimated_volume_methodnull
pddf_softwareATSAS GNOM
pddf_software_version5.0
i0_calibration_standardnull
descriptionPurified protein samples of AMY3 and BAM9 combined were shipped overnight at 4°C and analyzed using SEC-SAXS with in-line with UV/vis absorbance at 280nm and Multi-angle light scattering (MALS). Radially averaged SAXS data files were processed and analyzed in Scatter IV and RAW (Hopkins, 2024).
experiment_descriptionSynchrotron SAXS data from solutions of pseudoamylase BAM9 bound to alpha-amylase AMY3 in 20 mM HEPES, 100 mM NaCl, 0.2 mM TCEP, pH 7 were collected on the 12.3.1 (SIBYLS) beam line at the Advanced Light Source (ALS; Berkeley, CA, USA) using a Pilatus3 X 2M detector at a sample-detector distance of 2.1 m and at a wavelength of λ = 0.1027 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 sample at 4 mg/ml was injected onto a Shodex KW-803 column at 10°C. 20 successive 2 second frames were collected through the sample 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_unitarbitrary
experimental_mw146.8
experimental_mw_errornull
guinier_i0_mwnull
guinier_i0_mw_errornull
porod_mw200.0
porod_mw_errornull
pddf_i089.99
pddf_i0_error1.48
guinier_i077.6681
guinier_i0_errornull
pddf_rg6.52
pddf_rg_error0.11
guinier_rg5.047
guinier_rg_error1.431
pddf_dmax25.5
pddf_dmax_errornull
porod_volume379.7
porod_volume_errornull
estimated_volumenull
estimated_volume_errornull
guinier_point_first3
guinier_point_last24
pddf_point_firstnull
pddf_point_lastnull
i0_calibration_standard_datanull
intensities_log_log_plotSASDVY5_datloglog_img.png
symmetrynull
last_modified2025-01-23T14:23:02.048022+01:00
bragg_peak[]
manifest.json:34 field values
Field pathRaw value
codeSASDVY5
statussuccess
started_at2026-08-11T14:59:21.081277+00:00
finished_at2026-08-11T14:59:29.698077+00:00
source_last_modified2025-01-23T14:23:02.048022+01:00
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View the complete summary.json source
{
  "code": "SASDVY5",
  "status": "Published",
  "type_of_curve": "SEC-SAS",
  "angular_unit": "1/A",
  "project": {
    "title": "The Pseudoenzyme β‐Amylase9 From Arabidopsis Activates α‐Amylase3: A Possible Mechanism to Promote Stress‐Induced Starch Degradation",
    "publication": {
      "title": "The Pseudoenzyme β‐Amylase9 From Arabidopsis Activates α‐Amylase3: A Possible Mechanism to Promote Stress‐Induced Starch Degradation",
      "author_list": "Berndsen C, Storm A, Sardelli A, Hossain S, Clermont K, McFather L, Connor M, Monroe J",
      "journal": "Proteins: Structure, Function, and Bioinformatics",
      "doi": "10.1002/prot.26803",
      "pmid": null,
      "published_date": "2025 Jan 23"
    },
    "status": "released",
    "submitted_date": "2024-07-30",
    "released_date": "2025-01-20"
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View the complete manifest.json source
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