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
Acquisition Conditions and Instrument
Original SASBDB Plots Experimental I(q) Experimental I(q), log-log Guinier plot Kratky plot P(r) plot Downloadable Files
curve：source record {
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.dat",
"role": "curve",
"sha256": "0d6ccbe4761b3fe27f90e9b78e500717f64f1a5004aad985d8c541c0ecdaaf12",
"size": 82432,
"status": "downloaded",
"url": "https://www.sasbdb.org/media/intensities_files/SASDBD4.dat"
} full_entry_zip：source record and ZIP contents (4 items) {
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.zip",
"role": "full_entry_zip",
"sha256": "13c7e161db0430acf4df17867b2a23d1c78469f366f0ec4033e54a2ab51d7390",
"size": 67584,
"status": "downloaded",
"url": "https://www.sasbdb.org/media/zip_directories/SASDBD4.zip",
"zip_member_count": 4,
"zip_members": [
{
"crc32": "2719807b",
"name": "SASDBD4/experimental_data/SASDBD4.dat",
"size": 82432
},
{
"crc32": "e6eaf7c5",
"name": "SASDBD4/pddf/SASDBD4.out",
"size": 99209
},
{
"crc32": "e446839d",
"name": "SASDBD4/SASDBD4_fit1.fir",
"size": 62927
},
{
"crc32": "6df4bea1",
"name": "SASDBD4/SASDBD4_fit1_model1.pdb",
"size": 28819
}
],
"zip_validation": "central_directory_readable"
} pddf：source record {
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.out",
"role": "pddf",
"sha256": "06d08e2c96bca93663ac5a87a3f834b0c6d13357edfbc803bbc8fd327c21ccbd",
"size": 99209,
"status": "downloaded",
"url": "https://www.sasbdb.org/media/p_of_R_files/SASDBD4.out"
} sascif：source record {
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.sascif",
"role": "sascif",
"sha256": "f97889a04d2738824153c81dc2e03ff7d6650d58c181119fddfca253200fbf41",
"size": 256329,
"status": "downloaded",
"url": "https://www.sasbdb.org/media/sascif/sascif_files/SASDBD4.sascif"
} summary：source record {
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/summary.json",
"sha256": "f671818af161331f7472bcaf537ad39527dd4c4da3fbd82de78fc24c6b63ac4c",
"size": 10520,
"status": "downloaded",
"url": "https://www.sasbdb.org/rest-api/entry/summary/SASDBD4/"
} All source fields (unfiltered)
Every source field is expanded here, including empty values, list members and fields already shown above.
summary.json：156 field values manifest.json：36 field values View the complete summary.json source {
"code": "SASDBD4",
"status": "Published",
"type_of_curve": "Extrapolated to infinite dilution",
"angular_unit": "1/nm",
"project": {
"title": "The Structure of the Plakin Domain of Plectin Reveals an Extended Rod-like Shape.",
"publication": {
"title": "The Structure of the Plakin Domain of Plectin Reveals an Extended Rod-like Shape.",
"author_list": "Ortega E, Manso JA, Buey RM, Carballido AM, Carabias A, Sonnenberg A, de Pereda JM",
"journal": "J Biol Chem",
"doi": "10.1074/jbc.M116.732909",
"pmid": "27413182",
"published_date": "2016 Sep 2"
},
"status": "released",
"submitted_date": "2016-07-14",
"released_date": "2016-07-14"
},
"pddf_data": "https://www.sasbdb.org/media/p_of_R_files/SASDBD4.out",
"intensities_data": "https://www.sasbdb.org/media/intensities_files/SASDBD4.dat",
"intensities_log_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDBD4_dat_img.png",
"intensities_kratky_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDBD4_kratky_img.png",
"pddf_plot": "https://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDBD4_pofr_img.png",
"intensities_guinier_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDBD4_guinier_img.png",
"sascif_data": "https://www.sasbdb.org/media/sascif/sascif_files/SASDBD4.sascif",
"experiment": {
"instrument": {
"detector": {
"type": null,
"name": "Pilatus 2M",
"resolution": null
},
"name": "PETRA III",
"city": "DESY; Hamburg",
"country": "Germany",
"beamline_name": "EMBL P12",
"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": "Plakin domain fragment of Human Desmoplakin encompassing spectrin repeats SR7-SR8-SR9",
"short_name": "Desmoplakin",
"sequence": "GSHMENDKQETWMLMELQKIRRQIEHCEGRMTLKNLPLADQGSSHHITVKINELKSVQND\r\nSQAIAEVLNQLKDMLANFRGSEKYCYLQNEVFGLFQKLENINGVTDGYLNSLCTVRALLQ\r\nAILQTEDMLKVYEARLTEEETVCLDLDKVEAYRCGLKKIKNDLNLKKSLLATMKTELQKA\r\nQQIHSQTSQQYPLYDLDLGKFGEKVTQLTDRWQRIDKQIDFRLWDLEKQIKQLRNYRDNY\r\nQAFCKWLYDAKRRQDSLESMKFGDSNTVMRFLNEQKNLHSEISGKRDKSEEVQKIAELCA\r\nNSIKDYELQLASYTSGLETLLNIPIKRTMIQSPSGVILQEAADVHARYIELLTRSGDYYR",
"organism": "Homo sapiens",
"uniprot_code": "P15924",
"uniprot_range_first": 660,
"uniprot_range_last": 1025,
"oligomerization": "monomer",
"molecular_type": "protein",
"uniprot_sequence": "MSCNGGSHPRINTLGRMIRAESGPDLRYEVTSGGGGTSRMYYSRRGVITDQNSDGYCQTG\nTMSRHQNQNTIQELLQNCSDCLMRAELIVQPELKYGDGIQLTRSRELDECFAQANDQMEI\nLDSLIREMRQMGQPCDAYQKRLLQLQEQMRALYKAISVPRVRRASSKGGGGYTCQSGSGW\nDEFTKHVTSECLGWMRQQRAEMDMVAWGVDLASVEQHINSHRGIHNSIGDYRWQLDKIKA\nDLREKSAIYQLEEEYENLLKASFERMDHLRQLQNIIQATSREIMWINDCEEEELLYDWSD\nKNTNIAQKQEAFSIRMSQLEVKEKELNKLKQESDQLVLNQHPASDKIEAYMDTLQTQWSW\nILQITKCIDVHLKENAAYFQFFEEAQSTEAYLKGLQDSIRKKYPCDKNMPLQHLLEQIKE\nLEKEREKILEYKRQVQNLVNKSKKIVQLKPRNPDYRSNKPIILRALCDYKQDQKIVHKGD\nECILKDNNERSKWYVTGPGGVDMLVPSVGLIIPPPNPLAVDLSCKIEQYYEAILALWNQL\nYINMKSLVSWHYCMIDIEKIRAMTIAKLKTMRQEDYMKTIADLELHYQEFIRNSQGSEMF\nGDDDKRKIQSQFTDAQKHYQTLVIQLPGYPQHQTVTTTEITHHGTCQDVNHNKVIETNRE\nNDKQETWMLMELQKIRRQIEHCEGRMTLKNLPLADQGSSHHITVKINELKSVQNDSQAIA\nEVLNQLKDMLANFRGSEKYCYLQNEVFGLFQKLENINGVTDGYLNSLCTVRALLQAILQT\nEDMLKVYEARLTEEETVCLDLDKVEAYRCGLKKIKNDLNLKKSLLATMKTELQKAQQIHS\nQTSQQYPLYDLDLGKFGEKVTQLTDRWQRIDKQIDFRLWDLEKQIKQLRNYRDNYQAFCK\nWLYDAKRRQDSLESMKFGDSNTVMRFLNEQKNLHSEISGKRDKSEEVQKIAELCANSIKD\nYELQLASYTSGLETLLNIPIKRTMIQSPSGVILQEAADVHARYIELLTRSGDYYRFLSEM\nLKSLEDLKLKNTKIEVLEEELRLARDANSENCNKNKFLDQNLQKYQAECSQFKAKLASLE\nELKRQAELDGKSAKQNLDKCYGQIKELNEKITRLTYEIEDEKRRRKSVEDRFDQQKNDYD\nQLQKARQCEKENLGWQKLESEKAIKEKEYEIERLRVLLQEEGTRKREYENELAKVRNHYN\nEEMSNLRNKYETEINITKTTIKEISMQKEDDSKNLRNQLDRLSRENRDLKDEIVRLNDSI\nLQATEQRRRAEENALQQKACGSEIMQKKQHLEIELKQVMQQRSEDNARHKQSLEEAAKTI\nQDKNKEIERLKAEFQEEAKRRWEYENELSKVRNNYDEEIISLKNQFETEINITKTTIHQL\nTMQKEEDTSGYRAQIDNLTRENRSLSEEIKRLKNTLTQTTENLRRVEEDIQQQKATGSEV\nSQRKQQLEVELRQVTQMRTEESVRYKQSLDDAAKTIQDKNKEIERLKQLIDKETNDRKCL\nEDENARLQRVQYDLQKANSSATETINKLKVQEQELTRLRIDYERVSQERTVKDQDITRFQ\nNSLKELQLQKQKVEEELNRLKRTASEDSCKRKKLEEELEGMRRSLKEQAIKITNLTQQLE\nQASIVKKRSEDDLRQQRDVLDGHLREKQRTQEELRRLSSEVEALRRQLLQEQESVKQAHL\nRNEHFQKAIEDKSRSLNESKIEIERLQSLTENLTKEHLMLEEELRNLRLEYDDLRRGRSE\nADSDKNATILELRSQLQISNNRTLELQGLINDLQRERENLRQEIEKFQKQALEASNRIQE\nSKNQCTQVVQERESLLVKIKVLEQDKARLQRLEDELNRAKSTLEAETRVKQRLECEKQQI\nQNDLNQWKTQYSRKEEAIRKIESEREKSEREKNSLRSEIERLQAEIKRIEERCRRKLEDS\nTRETQSQLETERSRYQREIDKLRQRPYGSHRETQTECEWTVDTSKLVFDGLRKKVTAMQL\nYECQLIDKTTLDKLLKGKKSVEEVASEIQPFLRGAGSIAGASASPKEKYSLVEAKRKKLI\nSPESTVMLLEAQAATGGIIDPHRNEKLTVDSAIARDLIDFDDRQQIYAAEKAITGFDDPF\nSGKTVSVSEAIKKNLIDRETGMRLLEAQIASGGVVDPVNSVFLPKDVALARGLIDRDLYR\nSLNDPRDSQKNFVDPVTKKKVSYVQLKERCRIEPHTGLLLLSVQKRSMSFQGIRQPVTVT\nELVDSGILRPSTVNELESGQISYDEVGERIKDFLQGSSCIAGIYNETTKQKLGIYEAMKI\nGLVRPGTALELLEAQAATGFIVDPVSNLRLPVEEAYKRGLVGIEFKEKLLSAERAVTGYN\nDPETGNIISLFQAMNKELIEKGHGIRLLEAQIATGGIIDPKESHRLPVDIAYKRGYFNEE\nLSEILSDPSDDTKGFFDPNTEENLTYLQLKERCIKDEETGLCLLPLKEKKKQVQTSQKNT\nLRKRRVVIVDPETNKEMSVQEAYKKGLIDYETFKELCEQECEWEEITITGSDGSTRVVLV\nDRKTGSQYDIQDAIDKGLVDRKFFDQYRSGSLSLTQFADMISLKNGVGTSSSMGSGVSDD\nVFSSSRHESVSKISTISSVRNLTIRSSSFSDTLEESSPIAAIFDTENLEKISITEGIERG\nIVDSITGQRLLEAQACTGGIIHPTTGQKLSLQDAVSQGVIDQDMATRLKPAQKAFIGFEG\nVKGKKKMSAAEAVKEKWLPYEAGQRFLEFQYLTGGLVDPEVHGRISTEEAIRKGFIDGRA\nAQRLQDTSSYAKILTCPKTKLKISYKDAINRSMVEDITGLRLLEAASVSSKGLPSPYNMS\nSAPGSRSGSRSGSRSGSRSGSRSGSRRGSFDATGNSSYSYSYSFSSSSIGH",
"mw": 41.982,
"total_mw": 41.982,
"number_molecules": 1,
"complex_state": false,
"deuteration": null,
"molecule_source": "biological",
"molecule_description": null
}
],
"buffer": {
"name": "20 mM Sodium Phosphate 150 mM NaCl 5% glycerol 3 mM DTT",
"concentration_unit": "mM",
"comment": null,
"additive": "150 mM NaCl, 5% glycerol, 3 mM DTT",
"concentration": 20.0,
"pka": null,
"ph": 7.5,
"deuteration": null
},
"purity_method": null,
"name": "Plakin domain fragment of Human desmoplakin (C-terminal region spectrin repeats: SR7-SR8-SR9)",
"ext_coefficient": null,
"contrast": null,
"specific_vol": null,
"dry_vol": null,
"absorbption": null,
"deuteration": null,
"mixture": null
},
"contributor": [
{
"affiliation": [
{
"short_name": "USAL",
"address": "Salamanca, Spain",
"full_name": "La Universidad de Salamanca",
"webpage": "http://www.usal.es"
}
],
"contributor_name": "Jose M",
"contributor_surname": "de Pereda",
"orcid": null
}
],
"concentration_method": null,
"concentration_unit": "mg/ml",
"date": "2015-09-25",
"storage_temperature": 10.0,
"cell_temperature": 10.0,
"exposure_time": 0.05,
"number_of_frames": 30,
"wavelength": 0.12,
"sample_detector_distance": 3.1,
"concentration_min": 0.96,
"concentration_max": 7.7,
"sample_volume": null,
"flow_rate": null,
"s_min": 0.089,
"s_max": 4.812,
"total_exposure_time": null,
"seccolumn": null
},
"fits": [
{
"models": [
{
"model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDBD4_fit1_model1_img.png",
"software": "DAMMIF",
"pdb_link": [],
"model_title": null,
"type_of_model": "dummy",
"software_version": "",
"model_data": "https://www.sasbdb.org/media/pdb_file/SASDBD4_fit1_model1.pdb",
"model_mw": 45.0,
"bead_radius": 3.5,
"log": null,
"symmetry": "",
"comment": "",
"user": 26
}
],
"fit_unit": "1/A",
"fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDBD4_fit1_fit_img.png",
"software": null,
"chi_square_value": 1.393,
"p_value": 0.4155,
"fit_residual_plot": "SASDBD4_fit1_fitresiduals_img.png",
"fit_data": "https://www.sasbdb.org/media/fitting_files/SASDBD4_fit1.fir",
"fit_log": null,
"software_version": null,
"description": null
}
],
"estimated_volume_method": null,
"pddf_software": "ATSAS GNOM",
"pddf_software_version": null,
"i0_calibration_standard": null,
"description": null,
"experiment_description": "Synchrotron SAXS data from solutions of a plakin domain fragment from Human desmoplakin (C-terminal region spectrin repeats SR7-SR8-SR9) in 20 mM sodium phosphate, 150 mM NaCl, 5% v/v glycerol, 3 mM DTT were collected on the P12 beam line of Petra-III (Hamburg, Germany) using a Pilatus 2M detector (I(s) vs s; s = 4π sin θ/λ, where 2θ is the scattering angle and λ=0.124 nm). Different solute concentrations in the range 0.96-7.70 mg/ml were measured using an exposure time of 1 s (recorded as 30 x 0.050 s frames). The data were normalized to the intensity of the transmitted beam and radially averaged and the scattering from the matched solvent-blank was subtracted. The data were normalized to protein concentration and then extrapolated to infinite dilution to simulate a zero-concentration scattering curve.",
"tags": [],
"intensity_unit": null,
"experimental_mw": 44.9,
"experimental_mw_error": null,
"guinier_i0_mw": null,
"guinier_i0_mw_error": null,
"porod_mw": 43.4,
"porod_mw_error": null,
"pddf_i0": 10110.0,
"pddf_i0_error": null,
"guinier_i0": 9950.0,
"guinier_i0_error": null,
"pddf_rg": 4.72,
"pddf_rg_error": null,
"guinier_rg": 4.41,
"guinier_rg_error": null,
"pddf_dmax": 17.5,
"pddf_dmax_error": null,
"porod_volume": 69.4,
"porod_volume_error": null,
"estimated_volume": null,
"estimated_volume_error": null,
"guinier_point_first": null,
"guinier_point_last": null,
"pddf_point_first": null,
"pddf_point_last": null,
"i0_calibration_standard_data": null,
"intensities_log_log_plot": "SASDBD4_datloglog_img.png",
"symmetry": null,
"last_modified": "2023-06-21T07:56:39.492710+02:00",
"bragg_peak": []
} View the complete manifest.json source {
"code": "SASDBD4",
"status": "success",
"started_at": "2026-08-11T14:20:19.291246+00:00",
"finished_at": "2026-08-11T14:20:28.133244+00:00",
"source_last_modified": "2023-06-21T07:56:39.492710+02:00",
"files": [
{
"status": "downloaded",
"url": "https://www.sasbdb.org/rest-api/entry/summary/SASDBD4/",
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/summary.json",
"size": 10520,
"sha256": "f671818af161331f7472bcaf537ad39527dd4c4da3fbd82de78fc24c6b63ac4c"
},
{
"status": "downloaded",
"url": "https://www.sasbdb.org/media/intensities_files/SASDBD4.dat",
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.dat",
"size": 82432,
"sha256": "0d6ccbe4761b3fe27f90e9b78e500717f64f1a5004aad985d8c541c0ecdaaf12",
"role": "curve"
},
{
"status": "downloaded",
"url": "https://www.sasbdb.org/media/p_of_R_files/SASDBD4.out",
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.out",
"size": 99209,
"sha256": "06d08e2c96bca93663ac5a87a3f834b0c6d13357edfbc803bbc8fd327c21ccbd",
"role": "pddf"
},
{
"status": "downloaded",
"url": "https://www.sasbdb.org/media/sascif/sascif_files/SASDBD4.sascif",
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.sascif",
"size": 256329,
"sha256": "f97889a04d2738824153c81dc2e03ff7d6650d58c181119fddfca253200fbf41",
"role": "sascif"
},
{
"status": "downloaded",
"url": "https://www.sasbdb.org/media/zip_directories/SASDBD4.zip",
"path": "/data/saxsdb/sasbdb/entries/d4/sasdbd4/source/SASDBD4.zip",
"size": 67584,
"sha256": "13c7e161db0430acf4df17867b2a23d1c78469f366f0ec4033e54a2ab51d7390",
"role": "full_entry_zip",
"zip_member_count": 4,
"zip_validation": "central_directory_readable"
}
]
} 
