APPRIS P5: Where the APPRIS core modules are unable to choose a clear principal variant and none of the candidate variants are annotated by CCDS, APPRIS selects the longest of the candidate isoforms as the principal variant.

APPRIS is a system to annotate alternatively spliced transcripts based on a range of computational methods to identify the most functionally important transcript(s) of a gene.

APPRIS ALT2: For genes in which the APPRIS core modules are unable to choose a clear principal isoform, the ALT1 is the candidate transcript(s) models that appear to be conserved in fewer than three tested species.

APPRIS is a system to annotate alternatively spliced transcripts based on a range of computational methods to identify the most functionally important transcript(s) of a gene.