The genes in the screen were named hgcA through hgcG ("high GC"). The HgcE has been renamed as Pf3 and identified as an H/ACA snoRNA that is suggested to target 23S rRNA for pseudouridylation.
The genes on the screen were given designations hgcA through hgcG, indicating their high GC content. The previously designated HgcE gene has been reassigned to be known as Pf3 and recognized as a specific type of snoRNA that targets 23S rRNA for modification.