SASDF94

Insulin glulisine (Apidra), oligomeric composition

Data type: SASBDB experimental data Status: Published Curve type: Single concentration Last updated: 2023-06-21T07:56:39.492710+02:00

Here, Apidra measured at 3.49 mg/ml is displayed (formulation concentration). Measurements from 2 dilutions in placebo have been deposited in addition. Mixture analysis of the scattering profiles was performed with the program Oligomer. The SAXS data show that Apidra® primarily consists of hexamers, which dissociate into monomers upon dilution. The presence of dimers was not required to fit the experimental data, and their volume fraction was always essentially zero. A small volume fraction is, however, also made up by larger dodecameric species. The distribution between monomer, dimer, hexamer and dodecamer is documented in the logfile. Calculation of the form factors is based on an internal model (Apidra.pdb) for hexamers and 3W80.pdb for dodecamers.

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1. Samples, Components and Experimental Conditions Sample & Experiment

Sample 1 · Insulin glulisine (Apidra), oligomeric composition

Concentration— – 3.49 Buffer / pHApidra formulation (per ml: 5 mg Sodium chloride, 3.15 mg m-Cresol, 6 mg Trometamol, 0.01 mg Polysorbate 20) / 7.3
Experimental temperature20.0 Facility / beamlinePETRA III / EMBL P12
Wavelength0.1241 nmExposure0.045 s × 20

Molecular Components

ComponentType / organismUniProt and ConstructOligomeric StateMolecular weight
Insulin glulisine
View sequence
GIVEQCCTSICSLYQLENYCNFVKQHLCGSHLVEALYLVCGERGFFYTPET
protein———–—hexamerMolecule count 65.811 kDa

Experimental Curves

CurvePoints / columnsq rangeUncertainty qualityNegative-intensity pointsSource file
11796[3]0.00949275–0.50339 1/AHas uncertainty columnMissing 0124sasbdb/entries/94/sasdf94/source/SASDF94.dat
▼

2. Measurements Reported by SASBDB Reported Results

MetricMethodValueUncertaintyUnit
dmaxP(r)7.62—Å
i0Guinier62549.3147.88arbitrary
i0P(r)62680.0—arbitrary
mwExperimental34.0—kDa
mwGuinier I(0)34.05.0kDa
rgGuinier2.310.2Å
rgP(r)2.33—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

▶

4. Source File Index Source Files

▶

5. Experiment Description and Publication Experiment & Publication

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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.

Open the original SASBDB entry

Buffer and Sample Properties

Buffer nameApidra formulation (per ml: 5 mg Sodium chloride, 3.15 mg m-Cresol, 6 mg Trometamol, 0.01 mg Polysorbate 20)Buffer concentration—
pH7.3Additives—
Buffer description—
Purity measurement method—Extinction coefficient—
Absorbance—Scattering contrast—
Specific volume / dry volume— / —Mixture / deuteration— / —

Acquisition Conditions and Instrument

Measurement date2017-04-20Storage / measurement temperature20.0 / 20.0
Exposure time0.045Frames20
Wavelength0.1241Sample-to-detector distance3.1
SourceX-ray synchrotronDetectorPilatus 2M
Facility / beamlinePETRA III / EMBL P12 · DESY; Hamburg, Germany
q range0.095 – 5.034Sample volume / flow rate— / —

Original SASBDB Plots

Experimental I(q)
Experimental I(q)
Experimental I(q), log-log
Experimental I(q), log-log
Guinier plot
Guinier plot
Kratky plot
Kratky plot
P(r) plot
P(r) plot

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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:220 field values
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codeSASDF94
statusPublished
type_of_curveSingle concentration
angular_unit1/A
project.titleThe quaternary structure of insulin glargine and glulisine under formulation conditions.
project.publication.titleThe quaternary structure of insulin glargine and glulisine under formulation conditions.
project.publication.author_listNagel N, Graewert MA, Gao M, Heyse W, Jeffries CM, Svergun D, Berchtold H
project.publication.journalBiophys Chem
project.publication.doi10.1016/j.bpc.2019.106226
project.publication.pmid31376619
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project.statusreleased
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experiment.sample.molecule[0].organismnull
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experiment.contributor[0].affiliation[0].full_nameEuropean Molecular Biology Laboratory (EMBL) - Hamburg outstation
experiment.contributor[0].affiliation[0].webpagehttp://www.embl-hamburg.de/index.php
experiment.contributor[0].contributor_nameMelissa
experiment.contributor[0].contributor_surnameGraewert
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descriptionHere, Apidra measured at 3.49 mg/ml is displayed (formulation concentration). Measurements from 2 dilutions in placebo have been deposited in addition. Mixture analysis of the scattering profiles was performed with the program Oligomer. The SAXS data show that Apidra® primarily consists of hexamers, which dissociate into monomers upon dilution. The presence of dimers was not required to fit the experimental data, and their volume fraction was always essentially zero. A small volume fraction is, however, also made up by larger dodecameric species. The distribution between monomer, dimer, hexamer and dodecamer is documented in the logfile. Calculation of the form factors is based on an internal model (Apidra.pdb) for hexamers and 3W80.pdb for dodecamers.
experiment_descriptionnull
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View the complete summary.json source
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  "project": {
    "title": "The quaternary structure of insulin glargine and glulisine under formulation conditions.",
    "publication": {
      "title": "The quaternary structure of insulin glargine and glulisine under formulation conditions.",
      "author_list": "Nagel N, Graewert MA, Gao M, Heyse W, Jeffries CM, Svergun D, Berchtold H",
      "journal": "Biophys Chem",
      "doi": "10.1016/j.bpc.2019.106226",
      "pmid": "31376619",
      "published_date": "2019 Oct"
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            "address": "Notkestraße 85, Geb. 25A, 22607 Hamburg, Deutschland, Germany",
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View the complete manifest.json source
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