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You searched for: EV240113 (EV-TRACK ID)

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Experiment number
  • If needed, multiple experiments were identified in a single publication based on differing sample types, separation protocols and/or vesicle types of interest.
Species
  • Species of origin of the EVs.
Separation protocol
  • Gives a short, non-chronological overview of the different steps of the separation protocol.
    • (d)(U)C = (differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Details EV-TRACK ID Experiment nr. Species Sample type Separation protocol First author Year EV-METRIC
EV240113 1/6 Escherichia coli E44Δ (d)(U)C
UF
Dialysis
Allahghadry T 2022 33%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
33% (74th percentile of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
Cell culture supernatant
Sample origin
mutant strain (ST117 O78:H4)
Focus vesicles
Outer Membrane Vesicle
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
(Differential) (ultra)centrifugation
Ultrafiltration
Dialysis
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
Escherichia coli
Sample Type
Cell culture supernatant
EV-producing cells
E44Δ
EV-harvesting Medium
Serum free medium
Separation Method
(Differential) (ultra)centrifugation
dUC: centrifugation steps
Between 800 g and 10,000 g
Pelleting performed
No
Ultra filtration
Cut-off size (kDa)
100
Membrane type
Polyethersulfone (PES)
Other
Name other separation method
Dialysis
Characterization: Protein analysis
Protein Concentration Method
Fluorometric assay
Protein Yield (µg)
per microliter of starting sample
Detected EV-associated proteins
None
Not detected EV-associated proteins
None
Detected contaminants
None
Not detected contaminants
None
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Mean
Reported size (nm)
95.9 (±1.0) and 90.4 (±0.9)
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 2.64 × 10^12 (±8.6 × 10^10) and 1.44 × 10^12 (±1.4 × 10^11)
EM
EM-type
Cryo-­EM
Image type
Wide-field
Extra information
- filtration step of separation protocol: The pore size of the filter was 0.45 µm, I reported this as ‘between 0.22 and 0.45 µm’.
EV240113 2/6 Escherichia coli E44Δ Filtration
UF
Dialysis
Prefiltration treatment: diatomaceous earth (20 g/L)
Allahghadry T 2022 33%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
33% (74th percentile of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
Cell culture supernatant
Sample origin
mutant strain (ST117 O78:H4)
Focus vesicles
Outer Membrane Vesicle
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Filtration
Ultrafiltration
Dialysis
Prefiltration treatment: diatomaceous earth (20 g/L)
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
Escherichia coli
Sample Type
Cell culture supernatant
EV-producing cells
E44Δ
EV-harvesting Medium
Serum free medium
Separation Method
Filtration steps
0.45µm > x > 0.22µm,
Ultra filtration
Cut-off size (kDa)
100
Membrane type
Polyethersulfone (PES)
Other
Name other separation method
Dialysis
Other
Name other separation method
Prefiltration treatment: diatomaceous earth (20 g/L)
Characterization: Protein analysis
Protein Concentration Method
Fluorometric assay
Protein Yield (µg)
per microliter of starting sample
Detected EV-associated proteins
None
Not detected EV-associated proteins
None
Detected contaminants
None
Not detected contaminants
None
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Mean
Reported size (nm)
96.0 (±1.6) and 96.2 (±1.2)
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 2.32 × 10^12 (±3.2 × 10^11) and 3.32 × 10^12 (±2.2 × 10^11)
EM
EM-type
Cryo-­EM
Image type
Wide-field
EV240113 3/6 Escherichia coli E44Δ Filtration
UF
Dialysis
Prefiltration treatment: diatomaceous earth (40 g/L)
Allahghadry T 2022 33%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
33% (74th percentile of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
Cell culture supernatant
Sample origin
mutant strain (ST117 O78:H4)
Focus vesicles
Outer Membrane Vesicle
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Filtration
Ultrafiltration
Dialysis
Prefiltration treatment: diatomaceous earth (40 g/L)
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
Escherichia coli
Sample Type
Cell culture supernatant
EV-producing cells
E44Δ
EV-harvesting Medium
Serum free medium
Separation Method
Filtration steps
0.45µm > x > 0.22µm,
Ultra filtration
Cut-off size (kDa)
100
Membrane type
Polyethersulfone (PES)
Other
Name other separation method
Dialysis
Other
Name other separation method
Prefiltration treatment: diatomaceous earth (40 g/L)
Characterization: Protein analysis
Protein Concentration Method
Fluorometric assay
Protein Yield (µg)
per microliter of starting sample
Detected EV-associated proteins
None
Not detected EV-associated proteins
None
Detected contaminants
None
Not detected contaminants
None
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Mean
Reported size (nm)
91.3 (±0.8) and 115.1 (±4.1)
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 2.67 × 10^12 (±1.5 × 10^11) and 2.49 × 10^12 (±3.9 × 10^11)
EM
EM-type
Cryo-­EM
Image type
Wide-field
EV240113 4/6 Escherichia coli E44Δ Filtration
UF
Dialysis
Prefiltration treatment: diatomaceous earth (40 g/L)
Allahghadry T 2022 33%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
33% (74th percentile of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
Cell culture supernatant
Sample origin
mutant strain (ST117 O78:H4)
Focus vesicles
Outer Membrane Vesicle
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Filtration
Ultrafiltration
Dialysis
Prefiltration treatment: diatomaceous earth (40 g/L)
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
Escherichia coli
Sample Type
Cell culture supernatant
EV-producing cells
E44Δ
EV-harvesting Medium
Serum free medium
Separation Method
Filtration steps
0.22µm or 0.2µm
Ultra filtration
Cut-off size (kDa)
100
Membrane type
Polyethersulfone (PES)
Other
Name other separation method
Dialysis
Other
Name other separation method
Prefiltration treatment: diatomaceous earth (40 g/L)
Characterization: Protein analysis
Protein Concentration Method
Fluorometric assay
Protein Yield (µg)
per microliter of starting sample
Detected EV-associated proteins
None
Not detected EV-associated proteins
None
Detected contaminants
None
Not detected contaminants
None
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Mean
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 4.47 × 10^12 (±3.6 × 10^11)
EM
EM-type
Cryo-­EM
Image type
Wide-field
EV240113 5/6 Escherichia coli E44Δ Filtration
UF
Dialysis
Prefiltration treatment: diatomaceous earth (80 g/L)
Allahghadry T 2022 33%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
33% (74th percentile of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
Cell culture supernatant
Sample origin
mutant strain (ST117 O78:H4)
Focus vesicles
Outer Membrane Vesicle
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Filtration
Ultrafiltration
Dialysis
Prefiltration treatment: diatomaceous earth (80 g/L)
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
Escherichia coli
Sample Type
Cell culture supernatant
EV-producing cells
E44Δ
EV-harvesting Medium
Serum free medium
Separation Method
Filtration steps
0.22µm or 0.2µm
Ultra filtration
Cut-off size (kDa)
100
Membrane type
Polyethersulfone (PES)
Other
Name other separation method
Dialysis
Other
Name other separation method
Prefiltration treatment: diatomaceous earth (80 g/L)
Characterization: Protein analysis
Protein Concentration Method
Fluorometric assay
Protein Yield (µg)
per microliter of starting sample
Detected EV-associated proteins
None
Not detected EV-associated proteins
None
Detected contaminants
None
Not detected contaminants
None
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Mean
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 4.04 × 10^12 (±2.5 × 10^11)
EM
EM-type
Cryo-­EM
Image type
Wide-field
EV240113 6/6 Escherichia coli E44Δ Filtration
UF
Dialysis
Prefiltration treatment: diatomaceous earth (80 g/L)
Allahghadry T 2022 33%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
33% (74th percentile of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
Cell culture supernatant
Sample origin
mutant strain (ST117 O78:H4)
Focus vesicles
Outer Membrane Vesicle
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
Filtration
Ultrafiltration
Dialysis
Prefiltration treatment: diatomaceous earth (80 g/L)
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
Escherichia coli
Sample Type
Cell culture supernatant
EV-producing cells
E44Δ
EV-harvesting Medium
Serum free medium
Separation Method
Filtration steps
0.22µm or 0.2µm
Ultra filtration
Cut-off size (kDa)
10
Membrane type
Regenerated cellulose
Other
Name other separation method
Dialysis
Other
Name other separation method
Prefiltration treatment: diatomaceous earth (80 g/L)
Characterization: Protein analysis
Protein Concentration Method
Fluorometric assay
Protein Yield (µg)
per microliter of starting sample
Detected EV-associated proteins
None
Not detected EV-associated proteins
None
Detected contaminants
None
Not detected contaminants
None
Characterization: Lipid analysis
No
Characterization: Particle analysis
NTA
Report type
Mean
EV concentration
Yes
Particle yield
particles per milliliter of starting sample: 3.59 × 10^12 (±1.7 × 10^11)
EM
EM-type
Cryo-­EM
Image type
Wide-field
EV240113 7/6 NA NA NA Allahghadry T 2022 0%

Study summary

Full title
All authors
Allahghadry T, Bojesen AM, Whitehead BJ, Antenucci F
Journal
J Appl Microbiol
Abstract
To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of lar (show more...)To provide a reliable, reproducible and centrifuge-free filtration protocol for clarification of large volumes of bacterial cultures. (hide)
EV-METRIC
0% (median: 14% of all experiments on the same sample type)
 Reported
 Not reported
 Not applicable
EV-enriched proteins
Protein analysis: analysis of three or more EV-enriched proteins
non EV-enriched protein
Protein analysis: assessment of a non-EV-enriched protein
qualitative and quantitative analysis
Particle analysis: implementation of both qualitative and quantitative methods. For the quantitative method, the reporting of measured EV concentration is expected.
electron microscopy images
Particle analysis: inclusion of a widefield and close-up electron microscopy image
density gradient
Separation method: density gradient, at least as validation of results attributed to EVs
EV density
Separation method: reporting of obtained EV density
ultracentrifugation specifics
Separation method: reporting of g-forces, duration and rotor type of ultracentrifugation steps
antibody specifics
Protein analysis: antibody clone/reference number and dilution
lysate preparation
Protein analysis: lysis buffer composition
Study data
Sample type
NA
Sample origin
NA
Focus vesicles
Separation protocol
Separation protocol
  • Gives a short, non-chronological overview of the
    different steps of the separation protocol.
    • dUC = (Differential) (ultra)centrifugation
    • DG = density gradient
    • UF = ultrafiltration
    • SEC = size-exclusion chromatography
    • IAF = immuno-affinity capture
NA
Protein markers
EV: None
non-EV: None
Proteomics
no
Show all info
Study aim
Technical analysis comparing/optimizing EV-­related methods
Sample
Species
NA
Sample Type
NA
Separation Method
Other
Name other separation method
NA
Characterization: Lipid analysis
No
1 - 7 of 7
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EV-TRACK ID
EV240113
species
Escherichia
coli
Escherichia
coli
Escherichia
coli
Escherichia
coli
Escherichia
coli
Escherichia
coli
NA
sample type
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
Cell
culture
NA