This page provides information about bacteriophage RNA polymerases (RNAP). For example, how many subunits are in a particular RNAP, how does the RNAP recognize promoters or what is the consensus promoter sequences for a particular promoter.
T7 RNAP is a single-subunit RNA polymerase from bacteriophage T7. The nucleotide sequence for T7 RNAP is known and available from the registry (see BBa_I2032). T7 RNAP is known to be highly active and is also a highly selective RNAP. The consensus promoter sequence for T7 RNAP is represented by the sequence logos shown below.