{
  "code": "SASDX82",
  "status": "Published",
  "type_of_curve": "Single concentration",
  "angular_unit": "1/nm",
  "project": {
    "title": "Activation and dimerization of the relaxase from the Bacillus subtilis conjugative plasmid pLS20 by DNA-induced cross-over of the catalytic residue",
    "publication": null,
    "status": "released",
    "submitted_date": "2025-03-11",
    "released_date": "2025-09-19"
  },
  "pddf_data": "https://www.sasbdb.org/media/p_of_R_files/SASDX82.out",
  "intensities_data": "https://www.sasbdb.org/media/intensities_files/SASDX82.dat",
  "intensities_log_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDX82_dat_img.png",
  "intensities_kratky_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDX82_kratky_img.png",
  "pddf_plot": "https://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDX82_pofr_img.png",
  "intensities_guinier_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDX82_guinier_img.png",
  "sascif_data": "https://www.sasbdb.org/media/sascif/sascif_files/SASDX82.sascif",
  "experiment": {
    "instrument": {
      "detector": {
        "type": "CCD",
        "name": "ADSC Quantum 210r",
        "resolution": null
      },
      "name": "ALBA",
      "city": "Cerdanyola del Vallès, Barcelona",
      "country": "Spain",
      "beamline_name": "BL11 - NCD",
      "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": "Relaxase",
          "short_name": null,
          "sequence": "MDSPGVVLVSKYVSGKSTKFSKYVNYINRDEAVRTEKFQTYNVNKLDGYNQYMGNPEKSSGIFTQHKDSLSPVEKNQLKEIFRQAQKNDSVMWQDVISFDNKWLEERGIYNSQTGWVNEGAIQNSIRKGMEVLLREEQLEQSGVWSAAIHYNTDNIHVHIALVEPNPTKEYGVFTNKKTGEVYQARRGNRKLKTLDKMKSKVANTLMDRDKELSKISQLIHDRIAPKGLKFQVDKLAAALEHHHHHH",
          "organism": "Bacillus subtilis subsp. natto",
          "uniprot_code": "E9RJ23",
          "uniprot_range_first": 1,
          "uniprot_range_last": 232,
          "oligomerization": "monomer",
          "molecular_type": "protein",
          "uniprot_sequence": "MDSPGVVLVSKYVSGKSTKFSKYVNYINRDEAVRTEKFQTYNVNKLDGYNQYMGNPEKSS\r\nGIFTQHKDSLSPVEKNQLKEIFRQAQKNDSVMWQDVISFDNKWLEERGIYNSQTGWVNEG\r\nAIQNSIRKGMEVLLREEQLEQSGVWSAAIHYNTDNIHVHIALVEPNPTKEYGVFTNKKTG\r\nEVYQARRGNRKLKTLDKMKSKVANTLMDRDKELSKISQLIHDRIAPKGLKFQPRLDTYMT\r\nKMYNHIYENLPEDMRLWKYNNNALNNIRPEIDSVITMYIQKYHPEDYKELDQSLKEEMEF\r\nRKSVYGDGPKQVERYKEYRKNKHKELYTKLGNSMLKEMAEIRRRESQSKQMNRSGTYAPS\r\nSVSNRQWDTKGRRIKRSDINKIKHALDKDYQSMKNMRKYQQMQYEMEQSR",
          "mw": 28.502,
          "total_mw": 28.502,
          "number_molecules": 1,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": "The protein construct used for SAXS contains an additional non-native 15 amino acid C-terminal extension including a polyhistidine tag (VDKLAAALEHHHHHH)."
        }
      ],
      "buffer": {
        "name": "20 mM Tris, 300 mM NaCl, 1 mM DTT",
        "concentration_unit": null,
        "comment": null,
        "additive": null,
        "concentration": null,
        "pka": null,
        "ph": 8.0,
        "deuteration": null
      },
      "purity_method": null,
      "name": "N-terminal domain of relaxase from Bacillus subtilis conjugative plasmid pLS20",
      "ext_coefficient": null,
      "contrast": null,
      "specific_vol": null,
      "dry_vol": null,
      "absorbption": null,
      "deuteration": null,
      "mixture": null
    },
    "contributor": [
      {
        "affiliation": [
          {
            "short_name": null,
            "address": "Barcelona, Spain",
            "full_name": "ALBA - Cells",
            "webpage": "https://www.cells.es"
          }
        ],
        "contributor_name": "Isidro",
        "contributor_surname": "Crespo",
        "orcid": "https://orcid.org/0000-0001-7698-1720"
      }
    ],
    "concentration_method": null,
    "concentration_unit": null,
    "date": "2019-12-03",
    "storage_temperature": 4.0,
    "cell_temperature": 25.0,
    "exposure_time": 0.1,
    "number_of_frames": 20,
    "wavelength": 0.1,
    "sample_detector_distance": 2.56,
    "concentration_min": null,
    "concentration_max": 5.0,
    "sample_volume": null,
    "flow_rate": null,
    "s_min": 0.21,
    "s_max": 5.82,
    "total_exposure_time": null,
    "seccolumn": null
  },
  "fits": [
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDX82_fit1_model1_img.png",
          "software": "Phenix",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "atomic",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDX82_fit1_model1.pdb",
          "model_mw": 25.03,
          "bead_radius": null,
          "log": null,
          "symmetry": "Monomer",
          "comment": "Monomer",
          "user": 1088
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDX82_fit1_fixed_fit_img.png",
      "software": "OLIGOMER",
      "chi_square_value": 0.89,
      "p_value": 0.0,
      "fit_residual_plot": "SASDX82_fit1_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDX82_fit1.fit",
      "fit_log": "https://www.sasbdb.org/media/fitting_files/log_files/oligomer_OpjE7AF.log",
      "software_version": null,
      "description": ""
    }
  ],
  "estimated_volume_method": null,
  "pddf_software": "ATSAS GNOM",
  "pddf_software_version": "5.0",
  "i0_calibration_standard": null,
  "description": "pLS20: https://doi.org/10.1093/nargab/lqab096",
  "experiment_description": "Synchrotron SAXS data from solutions of the N-terminal domain of relaxase in 20 mM Tris, 300 mM NaCl, 1 mM DTT, pH 8 were collected on the BL11-NCD beam line at ALBA (Cerdanyola del Vallès, Barcelona, Spain) using a ADSC Quantum 210r detector at a sample-detector distance of 2.6 m and at a wavelength of λ = 0.1 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). One solute concentration of 5.00 mg/ml was measured at 25°C. 20 successive 0.100 second frames were collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.",
  "tags": [],
  "intensity_unit": "arbitrary",
  "experimental_mw": 26.45,
  "experimental_mw_error": null,
  "guinier_i0_mw": null,
  "guinier_i0_mw_error": null,
  "porod_mw": 39.9,
  "porod_mw_error": null,
  "pddf_i0": 1.875,
  "pddf_i0_error": null,
  "guinier_i0": 1.91399,
  "guinier_i0_error": null,
  "pddf_rg": 2.279,
  "pddf_rg_error": null,
  "guinier_rg": 2.28,
  "guinier_rg_error": 0.014,
  "pddf_dmax": 7.5,
  "pddf_dmax_error": null,
  "porod_volume": 48.4,
  "porod_volume_error": null,
  "estimated_volume": null,
  "estimated_volume_error": null,
  "guinier_point_first": 23,
  "guinier_point_last": 124,
  "pddf_point_first": null,
  "pddf_point_last": null,
  "i0_calibration_standard_data": null,
  "intensities_log_log_plot": "SASDX82_datloglog_img.png",
  "symmetry": null,
  "last_modified": "2026-04-14T12:48:12.254122+02:00",
  "bragg_peak": []
}