Data type: SASBDB experimental dataStatus: PublishedCurve type: SEC-SASLast updated: 2019-12-06T13:07:15.624532+01:00
Sample concentration: UNKNOWN. The experimental molecular weight (MW) quoted in this entry (144 kDa) was determined using multi-angle laser light scattering (MALLS). Analytical ultracentrifugation provides a MW estimate of 122 kDa.
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1. Samples, Components and Experimental Conditions Sample & Experiment
2. Measurements Reported by SASBDB Reported Results
Metric
Method
Value
Uncertainty
Unit
dmax
P(r)
19.45
—
Å
i0
Guinier
0.276
0.00049
arbitrary
i0
P(r)
0.2785
—
arbitrary
mw
Experimental
144.0
—
kDa
porod_volume
Porod
400.0
—
ų
rg
Guinier
5.634
0.063
Å
rg
P(r)
5.82
—
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
This entry has no source fit record.
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4. Source File Index Source Files
Category
Path
Download status
Size
curve
sasbdb/entries/d7/sasddd7/source/SASDDD7.dat
downloaded
67351
full_entry_zip
sasbdb/entries/d7/sasddd7/source/SASDDD7.zip
downloaded
31018
pddf
sasbdb/entries/d7/sasddd7/source/SASDDD7.out
downloaded
33517
sascif
sasbdb/entries/d7/sasddd7/source/SASDDD7.sascif
downloaded
118605
summary
sasbdb/entries/d7/sasddd7/source/summary.json
downloaded
6572
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5. Experiment Description and Publication Experiment & Publication
Original Experiment Description
Synchrotron SAXS data from solutions of human apolipoprotein E2 in 20 mM HEPES, 300 mM NaCl, pH 8 were collected on the B21 beam line at the Diamond Light Source (Oxfordshire, UK) using a Pilatus 2M detector at a sample-detector distance of 3.9 m and at a wavelength of λ = 0.1 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Seven successive 3 second frames were collected at a sample temperature of 20°C. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.
Related Publication
Title
The molecular basis for Apolipoprotein E4 as the major risk factor for late onset Alzheimer's disease.
Authors
Raulin AC, Kraft L, Al-Hilaly YK, Xue WF, McGeehan JE, Atack JR, Serpell L
DOI / PMID
10.1016/j.jmb.2019.04.019 / 31051176
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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.
Sample concentration: UNKNOWN. The experimental molecular weight (MW) quoted in this entry (144 kDa) was determined using multi-angle laser light scattering (MALLS). Analytical ultracentrifugation provides a MW estimate of 122 kDa.
experiment_description
Synchrotron SAXS data from solutions of human apolipoprotein E2 in 20 mM HEPES, 300 mM NaCl, pH 8 were collected on the B21 beam line at the Diamond Light Source (Oxfordshire, UK) using a Pilatus 2M detector at a sample-detector distance of 3.9 m and at a wavelength of λ = 0.1 nm (l(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). Seven successive 3 second frames were collected at a sample temperature of 20°C. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.