2. Measurements Reported by SASBDB Reported Results
Metric
Method
Value
Uncertainty
Unit
dmax
P(r)
16.92
—
Å
i0
Guinier
324.9
0.5
arbitrary
i0
P(r)
326.4
—
arbitrary
mw
Experimental
125.4
—
kDa
mw
Porod
194.0
—
kDa
porod_volume
Porod
310.0
—
ų
rg
Guinier
4.653
0.08
Å
rg
P(r)
4.65
—
Å
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
Fit 1 · CRYSOL 2.7.2
χ²: 2.581CorMap p: 0.0Unit: 1/A
This is a fit derived from 10,000 crysol fit calculations using full simulation ensemble. The log file is reflective of this including all of the individual crysol calculations.
5. Experiment Description and Publication Experiment & Publication
Original Experiment Description
Synchrotron SAXS data were collected using size-exclusion chromatography SAXS (SEC-SAXS) on the BioCAT 18-ID beam line at the Advanced Photon Source (APS), Argonne National Laboratory (Lemont, IL, USA). Data were acquired using a reverse-biased silicon diode array Pilatus3 1M detector at a sample-detector distance of 3.5 m and at a wavelength of λ = 0.1033 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Poly-histidine tagged SUMO-proliferating cell nuclear antigen (SUMOPCNA) was measured as a split fusion protein (PCNA (1-163, His-SUMO-165-258) at a sample injection concentration of 32.5 mg/ml at 22°C using a Wyatt Technology WTC-030S5 (SN 0787), WTC - 015 S5 column with a sample injection volume of 500μL sample at a flow-rate of 0.9 mL/min. The mobile phase was 20 mM Tris, 150 mM NaCl, 5% glycerol, 1 mM TCEP, pH 7.5. 320 successive 0.500 second SAXS data frames were collected through the SEC-elution profile that underwent appropriate date reduction, background correction (buffer subtraction) scaling and averaging to generate the profile displayed in this entry. The model represents a one state from an ensemble trajectory of SUMO-modified PCNA. The full ensemble is included in the full-entry zip archive (ca. 300 MB).
Related Publication
Title
Conformational Flexibility of Ubiquitin-Modified and SUMO-Modified PCNA Shown by Full-Ensemble Hybrid Methods.
Authors
Powers KT, Lavering ED, Washington MT
DOI / PMID
10.1016/j.jmb.2018.10.017 / 30381149
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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.
This is a fit derived from 10,000 crysol fit calculations using full simulation ensemble. The log file is reflective of this including all of the individual crysol calculations.
estimated_volume_method
null
pddf_software
ATSAS GNOM
pddf_software_version
5.0
i0_calibration_standard
null
description
null
experiment_description
Synchrotron SAXS data were collected using size-exclusion chromatography SAXS (SEC-SAXS) on the BioCAT 18-ID beam line at the Advanced Photon Source (APS), Argonne National Laboratory (Lemont, IL, USA). Data were acquired using a reverse-biased silicon diode array Pilatus3 1M detector at a sample-detector distance of 3.5 m and at a wavelength of λ = 0.1033 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Poly-histidine tagged SUMO-proliferating cell nuclear antigen (SUMOPCNA) was measured as a split fusion protein (PCNA (1-163, His-SUMO-165-258) at a sample injection concentration of 32.5 mg/ml at 22°C using a Wyatt Technology WTC-030S5 (SN 0787), WTC - 015 S5 column with a sample injection volume of 500μL sample at a flow-rate of 0.9 mL/min. The mobile phase was 20 mM Tris, 150 mM NaCl, 5% glycerol, 1 mM TCEP, pH 7.5. 320 successive 0.500 second SAXS data frames were collected through the SEC-elution profile that underwent appropriate date reduction, background correction (buffer subtraction) scaling and averaging to generate the profile displayed in this entry. The model represents a one state from an ensemble trajectory of SUMO-modified PCNA. The full ensemble is included in the full-entry zip archive (ca. 300 MB).