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You searched for: EV230846 (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
EV230846 1/1 Edwardsiella piscicida EIB202 (d)(U)C
DG
Filtration
ultrafiltration
Zhang L 2018 44%

Study summary

Full title
All authors
Zhang L, Jiang Z, Fang S, Huang Y, Yang D, Wang Q, Zhang Y, Liu Q
Journal
Front Cell Infect Microbiol
Abstract
Many bacterial pathogens inject effectors directly into host cells to target a variety of host cellu (show more...)Many bacterial pathogens inject effectors directly into host cells to target a variety of host cellular processes and promote bacterial dissemination and survival. Identifying the bacterial effectors and elucidating their functions are central to understanding the molecular pathogenesis of these pathogens. is a pathogen with a wide host range, and very few of its effectors have been identified to date. Here, based on the genes significantly regulated by macrophage infection, we identified 25 intracellular translocation-positive candidate effectors, including all five previously reported effectors, namely EseG, EseJ, EseH, EseK, and EvpP. A subsequent secretion analysis revealed diverse secretion patterns for the 25 effector candidates, suggesting that multiple transport pathways were involved in the internalization of these candidate effectors. Further, we identified two novel type VI secretion system (T6SS) putative effectors and three outer membrane vesicles (OMV)-dependent putative effectors among the candidate effectors described above, and further analyzed their contribution to bacterial virulence in a zebrafish model. This work demonstrates an effective approach for screening bacterial effectors and expands the effectors repertoire in . (hide)
EV-METRIC
44% (84th 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
Control condition
Focus vesicles
OMV (outer membrane 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
(Differential) (ultra)centrifugation
Density gradient
Filtration
ultrafiltration
Protein markers
EV: OmpA/ HA
non-EV: RNAP
Proteomics
no
Show all info
Study aim
Identification of content (omics approaches)
Sample
Species
Edwardsiella piscicida
Sample Type
Cell culture supernatant
EV-producing cells
EIB202
EV-harvesting Medium
Serum free medium
Separation Method
(Differential) (ultra)centrifugation
dUC: centrifugation steps
Between 800 g and 10,000 g
Equal to or above 150,000 g
Pelleting performed
Yes
Pelleting: time(min)
90
Pelleting: rotor type
NVTTM65
Pelleting: speed (g)
284000
Density gradient
Type
Discontinuous
Number of initial discontinuous layers
5
Lowest density fraction
20%
Highest density fraction
45%
Total gradient volume, incl. sample (mL)
11 mL
Sample volume (mL)
2 mL (mi
Orientation
Bottom-up
Rotor type
NVTTM65
Speed (g)
284000
Duration (min)
960
Fraction volume (mL)
1 mL
Fraction processing
Centrifugation
Pelleting: speed (g)
284000
Pelleting: adjusted k-factor
TDB
Filtration steps
0.45µm > x > 0.22µm,
Ultra filtration
Cut-off size (kDa)
30
Membrane type
not specified
Other
Name other separation method
ultrafiltration
Characterization: Protein analysis
Protein Concentration Method
Not determined
Western Blot
Detected EV-associated proteins
OmpA/ HA
Not detected contaminants
RNAP
Characterization: Lipid analysis
No
Characterization: Particle analysis
EM
EM-type
Transmission­-EM
Image type
Close-up, Wide-field
1 - 1 of 1
  • CM = Commercial method
  • dUC = differential ultracentrifugation
  • DG = density gradient
  • UF = ultrafiltration
  • SEC = size-exclusion chromatography
EV-TRACK ID
EV230846
species
Edwardsiella
piscicida
sample type
Cell culture
cell type
EIB202
condition
Control condition
separation protocol
dUC/
Density gradient/
Filtration/
ultrafiltration
Exp. nr.
1
EV-METRIC %
44