The baseScribe Mod Cap1 Kits enable the efficient production of Cap1?capped, pseudouridine? or N1-methylpseudouridine?modified mRNA by in vitro transcription (IVT) from DNA templates containing a T7 RNA polymerase promoter. The kits are designed for researchers who require translationally competent, immunosilent mRNA, generated in a single co?transcriptional reaction.