Create library by Bait Tiling (wizard) in SureSelect RNA Enrichment |
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This topic describes how to use the Create Library by Bait Tiling wizard within the SureSelect RNA Enrichment application type. A version of this wizard is also available for the SureSelect Target Enrichment application type. See Create library by Bait Tiling (wizard) in SureSelect Target Enrichment.
For the SureSelect RNA Enrichment application type, Bait Tiling is a process that creates baits that evenly cover specific transcript sequences or genomic regions of a given species. You can then use these baits for RNA capture, a process that isolates specific RNAs for sequencing. See SureSelect RNA enrichment libraries.
If you want to tile baits based on an uploaded file of transcript target sequences, prepare a FASTA format file that contains the desired sequences. Enter transcript sequences in 5' to 3' orientation as the coding strand of the corresponding DNA sequence. Each transcript can be up to 120 kb in length, and the total targeted sequence length can be up to 5 Mb. Use only the characters A, C, G, and T. The file must be a *.txt file in compressed (zip) format.
If you want to tile baits based on an uploaded file of GenBank accessions for specific transcripts, prepare a text file with an extension of *.txt that contains one accession per line. The transcripts associated with these accessions can each be up to 120 kb in length, and the total targeted sequence length can be up to 5 Mb.
If you want to tile baits to the sequences of particular genomic intervals, you can enter them directly in the first step of the wizard, or upload them. Make sure that the intervals correspond to the currently available genome build of your species of interest in eArray. To see the name of the currently available genome build for your species, go to the first step of the wizard, then select a species. If you want to upload a file of genomic intervals, create a text file with an extension of *.txt that contains one interval on each line. Each interval can be up to 120 kb in length, and the total targeted sequence length can be up to 5 Mb. For genomic intervals, use the format shown in this example: chr17:1005000-1007650
eArray uses a specified transcriptome as a similarity database to identify potential cross-hybridization problems. Agilent recommends that you use one of the Agilent-provided transcriptomes for this purpose, if one exists for your species of interest. However, you can also upload a custom transcriptome file. If you want to use an uploaded transcriptome, create a FASTA format file that contains the desired transcript sequences. The file must be a *.txt file in compressed (zip) format.
This wizard leads you through the steps that are summarized below.
Step 1 – Target Details – In this step, you set the parameters for a Bait Tiling job, and enter and/or upload target and transcriptome data, and you submit a bait tiling job to eArray.
Step 2 – Library Details – In this step, you define general attributes of the library, such as its name and location.
Step 3 – Layout Baits – In this step, you can add (or remove) bait groups, and select the number of copies of each bait group to include in the library.
Step 4 – Create Library – In this step, you save the library with a selected status. If you select a status of Submitted, eArray submits your custom library to Agilent Manufacturing, which makes it available for price quotes, and lets you purchase it online.
Click the Workspace tab. Note: Bait tiling is not available in a collaboration.
Set
the application type to SureSelect
RNA Enrichment.
The Home tab of the SureSelect RNA Enrichment application appears.
In the Library Wizards pane, select
Create Library by Bait Tiling,
then click Next.
The first step of the library appears in a new window.
In this step of the wizard you set the options for a Bait Tiling job.
Set the options described in the table below.
Parameter |
Instructions/Details |
Tiling Job Parameters |
|
Job Name |
Type a name that will later enable you to identify this Bait Tiling job. |
Sequencing Technology |
From the list, select the type of sequencing instrument that you will use. |
Sequencing Protocol |
Select the desired protocol. In the list, eArray shows the protocols that are available for your selected sequencing technology. |
Library Category |
(Read-only) eArray supports RNA Capture libraries, which retrieve specific RNA species from a pool of RNAs. |
Bait Length |
(Read-only) eArray supports a bait length of 120 nucleotides. |
Tiling Frequency |
Select the desired tiling frequency. This setting controls the density of tiling. Agilent recommends that you use a Bait Tiling frequency of 2x.
|
Keep only unique baits |
By default, if the Bait Tiling process produces two or more baits that have the same sequence, eArray includes only one copy of the bait when you create a bait group from the Bait Tiling results. To include all copies of such baits, clear this option. |
Target Details |
|
Target Type |
Select one of these options:
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Species |
Select the species that is associated with the target sequences. |
Content Type |
(Available if you select Transcript targets in Target Type) Select one of these options:
In either case, follow these steps to upload the file:
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Transcriptome |
(Available if you select Transcript targets in Target Type) Select one of these options:
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Learn more |
(Link, appears if you select Genomic intervals in Target Type) Shows the genome build for the selected species that is currently available in eArray. |
Enter Intervals |
(Available
if you select Genomic intervals
in Target Type) Type the desired target genomic intervals in the
box. Use the format chrX:<start>-<end>. Separate multiple
intervals with pipe "|" characters. Each interval can
be up to 120 kb in length, and the total targeted sequence length
can be up to 5 Mb. Alternatively, you can upload a list of intervals. Create the list as a *.txt file with one interval per line. End each line with a new line character — that is, in a word processor, press Enter at the end of each line. Then follow these steps:
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Transcriptome Details |
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Transcriptome Options |
(Available if you select Transcript targets in Target Type) eArray uses the transcriptome file as a similarity database to identify potential cross-hybridization problems. Select one of these options:
|
Click
Submit.
A message box notifies you that eArray has received your Bait Tiling
job.
Close
the message box.
The wizard closes.
When
you receive an e-mail notifying you that your bait tiling job is complete,
navigate to the Home tab and check the Library Wizards pane. You may
need to click Refresh.
The Bait Tiling job is listed in the pane with a status of Baits
Uploaded.
Click
the Continue link next to the Bait Tiling job.
The wizard opens to Step 2.
In this step of the wizard, you define general attributes of the library, such as its name and location.
On your individual workspace page, in the Library Wizards pane, next to the desired wizard, click Continue. If Continue does not appear, you must wait until the Bait Tiling job finishes.
Enter the following parameters. All are required unless otherwise noted.
Parameter |
Instructions/Details |
Library Details |
|
Library Name |
Type a name for the library. eArray uses this name as one of the search keys for libraries, and as a way to refer to it in search results, lists, and the like. |
Length |
(Read-only) The bait length of the tiled baits (in nucleotides). All baits in a library are of the same length. eArray supports a bait length of 120 nucleotides. |
Folder |
Select a location for your new library. The folders to which you have access appear in the list. |
Species |
(Read-only) Reflects the species that you selected in the previous step of the wizard. |
Library Size |
(Read-only) eArray supports a library size of 1 x 55K. |
Show Other Library Details (These parameters appear if you mark Show Other Library Details.) |
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Description |
(Optional) Type a brief description for the library. |
Keywords |
(Optional) Type search keywords to associate with the library, separated by commas. Keywords can help you search for the library. |
Attachment |
(Optional) Attachments are files or links that are related your library. Attached files can be up to 32 MB in size. To add one or more attachments, follow these steps:
Name – Type a name for the attachment. This name becomes the link you click to access the attachment. Type – Select the desired type of attachment from the list. An attachment can be either a file or a URL. Locale – Select the appropriate locale from the list. eArray uses this option to select content that has been localized for your region, when it is available. File – (Available only if you selected File for the type of attachment) Click Browse. Select the desired attachment in the dialog box that appears, then click Open. URL – (Available only if you selected URL for the type of attachment) Type the full URL of the Internet resource, including the protocol specifier. Example: http://www.agilent.com.
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Comments |
(Optional) Type comments to include with the library. |
Click Next.
The next step of the wizard, Layout
Baits, appears.
The bait group that contains the results of the Bait Tiling job that you previously submitted in the wizard appears under Biological RNA Enrichment Bait Group Details. In this step of the wizard, you can set the number of copies of this bait group to include in your library, and you can also add additional bait groups.
Use the tasks in the table below to select bait groups for your library. As you add and configure bait groups in the library, the Library Statistics pane reflects your choices. For information about these statistics, see Calculated library statistics.
Task |
Instructions/Details |
Bait Group Details |
|
Add
bait |
To add bait group(s) to your library:
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View a bait group |
In the Bait Group Name column, the names of bait groups in the library appear as links. Click the desired link to view details about the bait group. The View Bait Group page appears in a new window. For details about this page, see View bait group. |
Remove bait group |
To remove a bait group from the library:
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Change number of copies of bait group |
In the Replicate column, next to the desired bait group, type the number of copies of the bait group that you want to include in the library.
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View library statistics |
Library statistics appear under Bait Library Statistics. |
Click Next.
The next step of the wizard appears.
In this step, you save your library with a specific status.
In How do you want to save and create your Library?, select one of the following:
Draft – eArray saves the library with a status of Draft. Only you can edit the library.
Review – eArray saves the library with a status of Review. The users in your workgroup can edit the library and save versions of it.
Complete – eArray saves the library with a status of Complete. The library can be submitted to Agilent Manufacturing, and no one can edit it.
Submit –
eArray saves the library with a status of Submitted, and submits
the library to Agilent Manufacturing. If you select this option,
you must also click Design Checklist,
then read and mark all of the items that appear. Later, you can
request a quote
or order the library.
Click Save.
eArray creates and saves your library. A success message appears.
Click Close.
Another success message appears.
Click Close.
See also
Learn about SureSelect enrichment libraries