If you happen to see a question you know the answer to, please do chime in and help your fellow community members. We encourage our fourm members to be more involved, jump in and help out your fellow researchers with their questions. GATK forum is a community forum and helping each other with using GATK tools and research is the cornerstone of our success as a genomics research community.We appreciate your help!

Test-drive the GATK tools and Best Practices pipelines on Terra

Check out this blog post to learn how you can get started with GATK and try out the pipelines in preconfigured workspaces (with a user-friendly interface!) without having to install anything.

HC Tag

I'm looking at the HC tag that comes out of the --bamOutput option in HaplotypeCaller in the corresponding bam file that is produced. I've noticed that some real reads (i.e. ones not labeled as "ArtificialHaplotype") do not have a HC tag and are NA. What does this mean? That the read was not used and discarded or that no local re-assembly was performed? Many thanks.



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