{
  "code": "SASDBY4",
  "status": "Published",
  "type_of_curve": "Merged",
  "angular_unit": "1/nm",
  "project": {
    "title": "Dynamic intramolecular regulation of the histone chaperone nucleoplasmin controls histone binding and release.",
    "publication": {
      "title": "Dynamic intramolecular regulation of the histone chaperone nucleoplasmin controls histone binding and release.",
      "author_list": "Warren C, Matsui T, Karp JM, Onikubo T, Cahill S, Brenowitz M, Cowburn D, Girvin M, Shechter D",
      "journal": "Nat Commun",
      "doi": "10.1038/s41467-017-02308-3",
      "pmid": "29263320",
      "published_date": "2017 Dec 20"
    },
    "status": "released",
    "submitted_date": "2016-06-02",
    "released_date": "2017-11-18"
  },
  "pddf_data": "https://www.sasbdb.org/media/p_of_R_files/SASDBY4.out",
  "intensities_data": "https://www.sasbdb.org/media/intensities_files/SASDBY4.dat",
  "intensities_log_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDBY4_dat_img.png",
  "intensities_kratky_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDBY4_kratky_img.png",
  "pddf_plot": "https://www.sasbdb.org/media/p_of_R_files/pofr_images/SASDBY4_pofr_img.png",
  "intensities_guinier_plot": "https://www.sasbdb.org/media/intensities_files/scattering_plots/SASDBY4_guinier_img.png",
  "sascif_data": "https://www.sasbdb.org/media/sascif/sascif_files/SASDBY4.sascif",
  "experiment": {
    "instrument": {
      "detector": {
        "type": null,
        "name": "Rayonix MX225-HE",
        "resolution": null
      },
      "name": "Stanford Synchrotron Radiation Lightsource (SSRL)",
      "city": "Menlo Park, CA",
      "country": "USA",
      "beamline_name": "BL4-2",
      "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": "Nucleoplasmin core + A2",
          "short_name": "Npm core",
          "sequence": "ASTASNTSKVEKPVSLIWGCELNEQNKTFAFKIEDEEEKCEHQLALRTVCLGDKAKDEFHIVEIVTQEEGKEKPVPIASLKPSILPMATMVGIELTPPVTFRLKAGSGPVYISGQHVAMEEDYSWAEEEDEGEEEEEEEEDPESP",
          "organism": "Xenopus laevis",
          "uniprot_code": "Q6NUC7",
          "uniprot_range_first": 2,
          "uniprot_range_last": 145,
          "oligomerization": "pentamer",
          "molecular_type": "protein",
          "uniprot_sequence": null,
          "mw": 16.165,
          "total_mw": 80.824,
          "number_molecules": 5,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        },
        {
          "long_name": "Histone H2A (ΔAla127)",
          "short_name": "2HA",
          "sequence": "SGRGKQGGKTRAKAKTRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYLAAVLEYLTAEILELAGNAARDNKKTRIIPRHLQLAVRNDEELNKLLGRVTIAQGGVLPNIQSVLLPKKTESSKSKSK",
          "organism": "Xenopus laevis",
          "uniprot_code": "Q6AZJ8",
          "uniprot_range_first": 2,
          "uniprot_range_last": 130,
          "oligomerization": "pentamer",
          "molecular_type": "protein",
          "uniprot_sequence": "MSGRGKQGGKTRAKAKTRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYLAAVLEYLT\nAEILELAGNAARDNKKTRIIPRHLQLAVRNDEELNKLLGRVTIAQGGVLPNIQSVLLPKK\nTESSKSAKSK",
          "mw": 13.879,
          "total_mw": 69.395,
          "number_molecules": 5,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        },
        {
          "long_name": "Histone H2B 1.1 (Ser33Thr)",
          "short_name": "H2B",
          "sequence": "AKSAPAPKKGSKKAVTKTQKKDGKKRRKTRKESYAIYVYKVLKQVHPDTGISSKAMSIMNSFVNDVFERIAGEASRLAHYNKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVTKYTSAK",
          "organism": "Xenopus laevis",
          "uniprot_code": "P02281",
          "uniprot_range_first": 5,
          "uniprot_range_last": 126,
          "oligomerization": "pentamer",
          "molecular_type": "protein",
          "uniprot_sequence": "MPEPAKSAPAPKKGSKKAVTKTQKKDGKKRRKSRKESYAIYVYKVLKQVHPDTGISSKAM\nSIMNSFVNDVFERIAGEASRLAHYNKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVT\nKYTSAK",
          "mw": 13.494,
          "total_mw": 67.468,
          "number_molecules": 5,
          "complex_state": false,
          "deuteration": null,
          "molecule_source": "biological",
          "molecule_description": null
        }
      ],
      "buffer": {
        "name": "20 mM Tris. 150 mM NaCl, 1 mM EDTA, 5 mM DTT",
        "concentration_unit": "mM",
        "comment": null,
        "additive": "150mM NaCl, 1mM EDTA, 5mM DTT",
        "concentration": 20.0,
        "pka": null,
        "ph": 8.0,
        "deuteration": null
      },
      "purity_method": null,
      "name": "Pentameric Nucleoplasmin-histone H2A/H2B complex",
      "ext_coefficient": null,
      "contrast": null,
      "specific_vol": null,
      "dry_vol": null,
      "absorbption": null,
      "deuteration": null,
      "mixture": null
    },
    "contributor": [
      {
        "affiliation": [],
        "contributor_name": "Michael",
        "contributor_surname": "Brenowitz",
        "orcid": null
      },
      {
        "affiliation": [],
        "contributor_name": "Sean",
        "contributor_surname": "Cahill",
        "orcid": null
      },
      {
        "affiliation": [],
        "contributor_name": "Mark",
        "contributor_surname": "Girvin",
        "orcid": null
      },
      {
        "affiliation": [],
        "contributor_name": "Jerome",
        "contributor_surname": "Karp",
        "orcid": null
      },
      {
        "affiliation": [
          {
            "short_name": "SLAC",
            "address": "Menlo Park, CA, USA",
            "full_name": "Stanford Synchrotron Radiation Lightsource",
            "webpage": "http://www-ssrl.slac.stanford.edu/"
          }
        ],
        "contributor_name": "Tsutomu",
        "contributor_surname": "Matsui",
        "orcid": null
      },
      {
        "affiliation": [],
        "contributor_name": "Takashi",
        "contributor_surname": "Onikubo",
        "orcid": null
      },
      {
        "affiliation": [],
        "contributor_name": "David",
        "contributor_surname": "Shechter",
        "orcid": null
      },
      {
        "affiliation": [],
        "contributor_name": "Christopher",
        "contributor_surname": "Warren",
        "orcid": null
      }
    ],
    "concentration_method": null,
    "concentration_unit": null,
    "date": "2016-01-07",
    "storage_temperature": 20.0,
    "cell_temperature": 20.0,
    "exposure_time": 1.0,
    "number_of_frames": 55,
    "wavelength": 0.1127,
    "sample_detector_distance": 1.7,
    "concentration_min": null,
    "concentration_max": null,
    "sample_volume": null,
    "flow_rate": null,
    "s_min": 0.16,
    "s_max": 2.994,
    "total_exposure_time": null,
    "seccolumn": null
  },
  "fits": [
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDBY4_fit1_model1_img.png",
          "software": "DAMFILT",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "dummy",
          "software_version": "r6345",
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDBY4_fit1_model1.pdb",
          "model_mw": 250.736,
          "bead_radius": 5.75,
          "log": null,
          "symmetry": "P5",
          "comment": "",
          "user": 131
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/SASDBY4_fit2_fit_img.png",
      "software": null,
      "chi_square_value": 1.58,
      "p_value": 0.0,
      "fit_residual_plot": "SASDBY4_fit2_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDBY4_fit1.fir",
      "fit_log": null,
      "software_version": null,
      "description": null
    },
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDBY4_fit2_model1_img.png",
          "software": "CORAL",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "mix",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDBY4_fit2_model1.pdb",
          "model_mw": 223.5,
          "bead_radius": 1.9,
          "log": null,
          "symmetry": "P5",
          "comment": null,
          "user": 131
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/Major_site_fit_img.png",
      "software": "CORAL",
      "chi_square_value": 1.43,
      "p_value": 0.0,
      "fit_residual_plot": "Major_site_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDBY4_fit2.fit",
      "fit_log": null,
      "software_version": null,
      "description": null
    },
    {
      "models": [
        {
          "model_plot": "https://www.sasbdb.org/media/pdb_file/images/SASDBY4_fit3_model1_img.png",
          "software": "CORAL",
          "pdb_link": [],
          "model_title": null,
          "type_of_model": "mix",
          "software_version": null,
          "model_data": "https://www.sasbdb.org/media/pdb_file/SASDBY4_fit3_model1.pdb",
          "model_mw": 223.5,
          "bead_radius": 1.9,
          "log": null,
          "symmetry": "P5",
          "comment": null,
          "user": 131
        }
      ],
      "fit_unit": "1/A",
      "fit_plot": "https://www.sasbdb.org/media/fitting_files/scattering_plots/Minor_site_fit_img.png",
      "software": "CORAL",
      "chi_square_value": 1.26,
      "p_value": 0.000139,
      "fit_residual_plot": "Minor_site_fitresiduals_img.png",
      "fit_data": "https://www.sasbdb.org/media/fitting_files/SASDBY4_fit3.fit",
      "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": "The models displayed for this entry are: Top: ab initio bead model representation (derived from individual reconstructions (example fit shown), aligned, spatially averaged and volume-occupancy corrected): Middle: The best CORAL model using the major A2 site (site #1) of A2:H2A/H2B complex as a starting structure (See Figure 5D in the primary citation). Lacking fragments reconstructed by the program CORAL are shown as spheres. Bottom: The best CORAL model using the minor A2 site (site #2) of A2:H2A/H2B complex as a starting structure (See Figure 5D in the primary citation). Lacking fragments reconstructed by the program CORAL are shown as spheres.",
  "experiment_description": "Synchrotron SAXS data measured from solutions of the pentameric nucleoplasmin-histone H2A/H2B complex in 20 mM Tris 150mM NaCl, 1mM EDTA, 5mM DTT, pH 8.0, were collected on the BL4-2 beam line at the Stanford Synchrotron Radiation Lightsource (Stanford, USA) using a Rayonix MX225-HE detector (I(s) vs s; s = 4π sin θ/λ, where 2θ is the scattering angle and λ=0.1127 nm). Fifty five successive 1 s data frames were collected immediately after the protein complex eluted from a size-exclusion chromatography (SEC) column. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank (derived from the SEC running solvent) was subtracted and the individual solvent-corrected SAXS profiles were scaled and averaged to produce the final merged SAXS data profile.",
  "tags": [],
  "intensity_unit": null,
  "experimental_mw": 251.0,
  "experimental_mw_error": null,
  "guinier_i0_mw": null,
  "guinier_i0_mw_error": null,
  "porod_mw": null,
  "porod_mw_error": 251.0,
  "pddf_i0": 2822.0,
  "pddf_i0_error": 8.0,
  "guinier_i0": 2875.52,
  "guinier_i0_error": 14.75,
  "pddf_rg": 4.32,
  "pddf_rg_error": 0.01,
  "guinier_rg": 4.39,
  "guinier_rg_error": 0.03,
  "pddf_dmax": 14.0,
  "pddf_dmax_error": null,
  "porod_volume": 402.0,
  "porod_volume_error": null,
  "estimated_volume": null,
  "estimated_volume_error": null,
  "guinier_point_first": 1,
  "guinier_point_last": 16,
  "pddf_point_first": null,
  "pddf_point_last": null,
  "i0_calibration_standard_data": null,
  "intensities_log_log_plot": "SASDBY4_datloglog_img.png",
  "symmetry": null,
  "last_modified": "2021-08-18T17:28:04.360641+02:00",
  "bragg_peak": []
}