Reformat and Upload a Coordinates File

1. Open the original TruSeq Custom Amplicon design coordinate input file (*.csv) in a spreadsheet editor, such as Excel.
2. Delete the following columns:
TargetType
PaddingPerExon
Include3UTR
Include5UTR
Labels
3. Rename the StartCoordinate column into Start.
4. Rename the StopCoordinate column into End.
5. Insert a column to the left of the Name column and enter Type in the header.
6. Enter REGION for all entries in the Type column.
7. Make sure that all entries in the Chromosome column include prefixes that match the chromosome format of the reference genome. See Expected Chromosome Format.
8. Make sure that all entries in the Name column are 20 alphanumeric characters or less. Hyphens, periods, underscores, and whitespaces are allowed.

The name field can be empty.

9. Save and close the coordinate input file.
10. Create a new AmpliSeq for Illumina Gene design to target exons and large (> 125 bp) regions or an AmpliSeq for Illumina Hotspot design to target SNVs and small (< 125 bp) regions. See Create an AmpliSeq for Illumina Gene Design or Create an AmpliSeq for Illumina Hotspot Design.

Make sure to select the species that matches the original TruSeq Custom Amplicon design. For human TruSeq Custom Amplicon designs, select Human (hg19).

11. Configure the new AmpliSeq for Illumina design by selecting the Sample Type and Max Amplicon Length that most closely match those of the original TruSeq Custom Amplicon design.

Use the following table for selecting equivalent amplicon sizes between the two assay types:

TruSeq Custom Amplicon design Amplicon Size

AmpliSeq for Illumina custom design Max Amplicon Size

150

140

175

175

250

275

425

375

12. Use the default setting for Stringency.
13. Select Next.
14. Upload the reformatted coordinate input file into the AmpliSeq for Illumina design. See Add Targets by Uploading Files.