Quantitative Western Blot: TPS + Targets Experiment

Use this analysis type if you are using a total protein stain Membrane stain that does not covalently modify sample proteins and therefore does not affect antibody binding or quantification. (TPS) for normalization.

Name

To help with record-keeping, give every Experiment a distinct name. The description field provides space for you to include important details about the Experiment.

Set up images

Ensure the correct images have been chosen, then enter information for the total protein stain and protein targets that are being analyzed.

Click the zoom buttons above the image to make the displayed image smaller or larger . A zoom level, shown as a percentage relative to the size of the software window, is shown next to the zoom buttons.

Define lanes

The Define lanes page identifies lanes on the image for analysis. To find lanes, draw a boundary that encloses all the lanes on the image.

By default, Auto mode automatically performs lane finding. Manual mode is also available.

Specify replicate lanes

The Specify replicate lanes page allows you to link replicate lanes for analysis. The numbered rectangles displayed on the page correspond to the lanes on your blot.

Add lane details

Record important details about your samples.

Assign MW marker

Assign a molecular weight marker to estimate the molecular weight of bands. Estimated molecular weights will be available in the Analysis Table of the Quantify bands page.

Quantify lanes

The lane rectangles on this page are created based on the lanes defined on the Define lanes page. The quantification value for lanes can be viewed in the Analysis Table on this page. If lanes were defined using Manual mode, the size and placement of lane rectangles can be adjusted if necessary.

Define lanes

  • If Auto mode was used to define lanes, the boundary can be adjusted if necessary.
  • If Manual mode was used to define lanes, the size and placement of lane rectangles can be adjusted if necessary.

Review lane details

Use this page to double check the lane details. If you need to make a change, return to the Add lane details page.

Assign MW marker

Assign a molecular weight marker to estimate the molecular weight of bands. Estimated molecular weights will be available in the Analysis Table of the Quantify bands page.

You can estimate the molecular weight of target bands in one channel using a marker in another channel when you link a Band Channel to a Marker Channel.

Quantify bands

The Next button will not be active until you have identified a band in each lane (aside from lanes that you marked as Not Used or MW Marker on the Add lane details page).

Set up calculations

The Set up calculations page allows you to choose how fold change (or percent change) is calculated for normalized signal values, and allows you to set up how the chart will appear when it is exported.

See Blot Quantification, Blot Quantification, or Blot Quantification for more information about how values on this page are calculated.

Begin by selecting options in the table at the top of the page. Select the control and samples to include in the chart.

Review and report

The Review and report page allows you to export a PDF report of the entire analysis, or you can export individual images and data tables.

The data in the report is organized into sections. Click to expand a section to view data and export options.

Done

Click Done to mark this Experiment as complete and return to the Experiment List.