Fig. 1From: SAPFIR: A webserver for the identification of alternative protein featuresDefinition of alternative protein features using an illustration of a hypothetical gene with predicted features. Whether a feature is alternative depends on which transcripts are considered. Notably, the transcripts considered by the Overlap CDS standard vary as a function of the feature in question. The CDS Length ratio is set at 50% which removes Transcript 4 from consideration. “Alt.” indicates alternative, “Con.” indicates constitutiveBack to article page