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W3110 Unique ID: JW2876

Gene: pepP

Gene name: pepP
Strain: JW2876
Induction: 50 uM IPTG
Comment: 6B9G
Reference: PMID:16769691--ASKA Collection--Kitagawa et al.

Consensus Protein Localization:

The mean image is generated by interpolating the single cell histories onto a reference cell cycle.Time is measured relative to the cell cycle length and position is measured relative to the cell geometry. The std image is the standard deviation in intensity. The error image is the predicted error in the mean intesnity. The mean, std, and error images share a common normalization: intensity relative to the brightest pixel. The cell histories are individually corrected for protein synthesis, degredation and fluorophore bleahcing by adjust the temporal normalization to maintain a fixed areal mean intensity throughout the cell cycle.

Mean Intensity

NCell = 1000

Std Intensity

NCell = 1000

Error Intensity

NCell = 1000

Cell Orientation Relative Intensity

Principal Component Analysis (Cell-to-Cell Variation):

Principal Component Analysis of Cell-to-Cell Variation captures the dominant modes of cell to cell variation.

Comp: 1

Power: 1

Comp: 2

Power: 0.63

Comp: 3

Power: 0.5

Comp: 4

Power: 0.42

Comp: 5

Power: 0.38

Comp: 6

Power: 0.24

Cell Splits: Subpopulation Analysis

To investigate the role of cell physiological parameter P (eg cell length) on protein localization, cells are divided into two subpopulations Pcell > Pcut and Pcell > Pcut and consensus images are computed for each. On the left hand side, each image is normalized individually. On right hand side, a common normalization scheme is used for all twelve subpopulation consensus images. On the far right, a histogram is shown for each parameter P for all complete cell cycles collected. The blue (red) curve shows the histogram for the population below (above) Pcut. The yellow curve shows the histogram generated by all fusions strains (typically 48) imaged in the imaging run.

Individual Normalization
Common Normalization
< Pcut
> Pcut
Characteristic P
< Pcut
> Pcut
Histograms

NCell = 364

NCell = 636

Cell Length

Lcut = 1.9 um

NCell = 364

NCell = 636

NCell = 476

NCell = 524

Cell-Cycle Length

Tcut = 82.5 min

NCell = 476

NCell = 524

NCell = 537

NCell = 463

Cell Birth Time

Tcut = 86.3 min

NCell = 537

NCell = 463

NCell = 291

NCell = 709

Number of

Neighbors

Ncut = 2.2 cells

NCell = 291

NCell = 709

NCell = 844

NCell = 156

Pole Age

Tcut = 2.0 divisions

NCell = 844

NCell = 156

NCell = 354

NCell = 646

Cell Fluor

Icut = 378.5 AU

NCell = 354

NCell = 646