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
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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:129 field values
manifest.json:34 field values
View the complete summary.json source {
"code": "SASDX67",
"status": "Published",
"type_of_curve": "Single concentration",
"angular_unit": "1/nm",
"project": {
"title": "Non Structural Protein 15 in Complex with RNA 9mer Oligo of SARS CoV 2",
"publication": null,
"status": "released",
"submitted_date": "2025-07-30",
"released_date": "2025-08-05"
},
"pddf_data": "https://www.sasbdb.org/media/p_of_R_files/SASDX67.out",
"intensities_data": "https://www.sasbdb.org/media/intensities_files/SASDX67.dat",
"intensities_log_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDX67_dat_img.png",
"intensities_kratky_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDX67_kratky_img.png",
"pddf_plot": "https://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDX67_pofr_img.png",
"intensities_guinier_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDX67_guinier_img.png",
"sascif_data": "https://www.sasbdb.org/media/sascif/sascif_files/SASDX67.sascif",
"experiment": {
"instrument": {
"detector": {
"type": "Hybrid Photon Counting (HPC)",
"name": "Mythen2 R 1K",
"resolution": null
},
"name": "CSIR-Central Drug Research Institute",
"city": "Lucknow",
"country": "India",
"beamline_name": "Anton Paar SAXSpace",
"beam_geometry": null,
"type_of_source": "X-ray in house",
"point_source": null,
"line_collimation": null,
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},
"sample": {
"molecule": [
{
"long_name": "Non structural Protein 15",
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"organism": "Severe acute respiratory syndrome coronavirus 2",
"uniprot_code": "P0DTD1",
"uniprot_range_first": 6465,
"uniprot_range_last": 6798,
"oligomerization": "monomer",
"molecular_type": "protein",
"uniprot_sequence": 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"mw": 233.3,
"total_mw": 250.74,
"number_molecules": 1,
"complex_state": false,
"deuteration": null,
"molecule_source": "biological",
"molecule_description": "The sample comprises a hexameric assembly of NSP15 protein (monomer MW ≈ 38.88 kDa) with an estimated hexameric molecular weight of ~233.30 kDa. Each protein hexamer is complexed with six copies of a 9-nucleotide single-stranded RNA (sequence: AAACGACAU), contributing an additional ~17.45 kDa, yielding a total molecular weight of approximately 250.74 kDa. The RNA is presumed to bind symmetrically across the RNA-binding sites of the protein hexamer, maintaining a compact, globular assembly in solution."
}
],
"buffer": {
"name": "20mM HEPES, 150mM Nacl",
"concentration_unit": null,
"comment": null,
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"ph": 7.5,
"deuteration": null
},
"purity_method": null,
"name": "Non Structural Protein 15 in complex with RNA 9mer",
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},
"contributor": [
{
"affiliation": [
{
"short_name": null,
"address": "India",
"full_name": "CSIR - Central Drug Research Institute",
"webpage": "https://cdri.res.in/"
}
],
"contributor_name": "Hira Singh",
"contributor_surname": "Gariya",
"orcid": ""
}
],
"concentration_method": null,
"concentration_unit": null,
"date": "2024-06-14",
"storage_temperature": 10.0,
"cell_temperature": 10.0,
"exposure_time": 900.0,
"number_of_frames": 3,
"wavelength": 1.54,
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},
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"pddf_software": "ATSAS GNOM",
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"i0_calibration_standard": null,
"description": "Small-angle X-ray scattering (SAXS) measurements were performed to characterize the solution structure of the SARS-CoV-2 Non-Structural Protein 15 (NSP15) in complex with a 9-mer RNA oligonucleotide (AAACGACAU) under catalytically relevant conditions. NSP15 is a uridine-specific endoribonuclease that functions as a hexamer. The SAXS sample was prepared in the presence of Mn²⁺ ions, which are essential for its enzymatic activity and RNA binding. \r\nThe complex was modeled as a single scattering particle composed of six NSP15 monomers, each associated with a 9-mer RNA, and validated through molecular weight estimation from both I(0) and Porod analysis. The SAXS profile supports a monodisperse and compact hexameric assembly of NSP15 in solution. The data correlate well with the known crystallographic structure (e.g., PDB: 7N33), indicating the preservation of the oligomeric state and RNA interactions in solution under physiological ionic and metal conditions.",
"experiment_description": null,
"tags": [],
"intensity_unit": "arbitrary",
"experimental_mw": 244.1,
"experimental_mw_error": null,
"guinier_i0_mw": 208.0,
"guinier_i0_mw_error": null,
"porod_mw": 222.0,
"porod_mw_error": null,
"pddf_i0": 51800.0,
"pddf_i0_error": null,
"guinier_i0": 52508.4,
"guinier_i0_error": 842.17,
"pddf_rg": 4.66,
"pddf_rg_error": 0.417,
"guinier_rg": 4.72,
"guinier_rg_error": 0.18,
"pddf_dmax": 13.83,
"pddf_dmax_error": null,
"porod_volume": 356.0,
"porod_volume_error": null,
"estimated_volume": null,
"estimated_volume_error": null,
"guinier_point_first": 9,
"guinier_point_last": 30,
"pddf_point_first": null,
"pddf_point_last": null,
"i0_calibration_standard_data": null,
"intensities_log_log_plot": "SASDX67_datloglog_img.png",
"symmetry": null,
"last_modified": "2025-09-17T14:35:36.817367+02:00",
"bragg_peak": []
}
View the complete manifest.json source {
"code": "SASDX67",
"status": "success",
"started_at": "2026-08-11T15:23:17.271806+00:00",
"finished_at": "2026-08-11T15:23:24.605774+00:00",
"source_last_modified": "2025-09-17T14:35:36.817367+02:00",
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