The NAb Assay Tutorial covers the process of working with NAb data using a high-throughput assay and uploading data and metadata from files. This topic covers importing data from a low-throughput NAb assay. This process requires more data entry of specific metadata, but you do have the option to see the use of multiple data identifiers in action.

Create a New NAb Assay Design

  • In the Assay List web part, click Manage Assays.
  • Click Configure Plate Templates, then select New 96 Well (8x12) NAB Single-Plate Template.
  • Specify the following in the plate template editor:
    • Provide a Template Name, for example: "NAb Plate 1"
    • Leave all other settings at their default values (in order to create the default NAb plate).
    • Click Save and Close.
  • Click Assay Dashboard to get back to your folder.
  • Click New Assay Design.
  • Select TZM-bl Neutralization (NAb), select the current folder (NAb Tutorial) as the Assay Location, and click Next.
  • Specify the following in the assay designer:
    • Name: "NAbAssayDesign"
    • Plate Template: NAb Plate 1
    • Metadata Input Format: Confirm Manual is selected for this tutorial.
    • Leave all other fields at their default values.
    • Click Save and Close.

Import Data

When importing runs for this tutorial, you provide metadata, in this case sample information, manually through the UI. If instead you had a file containing that sample information, you could upload it using the File Upload option for Metadata Input Format. See NAb Properties for more information.

  • Return to the Assay Dashboard page.
  • On the Assay List, click NAbAssayDesign, then Import Data.
  • For Participant/Visit, select Specimen/sample id. Do not check the box to also provide participant/visit information.
  • Click Next and enter experiment data as follows:
PropertyValue
Assay IdLeave blank. This field defaults to the name of the data file import.
Cutoff Percentage (1)50
Cutoff Percentage (2)80
Host CellT
Experiment Performer<your name>
Experiment IDNAb32
Incubation Time30
Plate Number1
Curve Fit MethodFive parameter
Virus NameHIV-1
Virus IDP392
Run DataBrowse to the file: [LabKeyDemoFiles]\Assays\NAb\NAbresults1.xls
Specimen IDsEnter the following (in the row of fields below the run data file):
Specimen 1526455390.2504.346
Specimen 2249325717.2404.493
Specimen 3249320619.2604.640
Specimen 4249328595.2604.530
Specimen 5526455350.4404.456
Initial DilutionPlace a checkmark and enter 20
Dilution FactorPlace a checkmark and enter 3
MethodPlace a checkmark and enter Dilution
  • Click Save and Finish.

NAb Dashboard

When the import is complete, you can view detailed information about any given run right away, giving quick confirmation of a good set of data or identifying any potential issues. The run summary dashboard looks something like this:

The percent coefficient of variation (%CV) is shown on the neutralization curve charts as vertical lines from each data point. Additional quality control, including excluding particular wells from calculations is available for NAb assays. See NAb Assay QC for details.

As with high-throughput NAb data you can customize graphs and views before integrating or sharing your results. Once a good set of data is confirmed, it could be copied to a study or data repository for further analysis and integration.

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