The three SIRV Isoform Mixes (E0, E1 and E2) are each composed of 4 SIRV transcript Sub-Mixes.
These four Sub-Mixes are prepared from one of 8 Pre-Mixes, allowing for the unique identification of each SIRV by capillary electrophoresis while entering the mixing scheme.
An Illustration of how the Sub-Mixes contribute to SIRV transcript concentrations within each Isoform Mix is illustrated in the SIRV-Set 1 User Guide.