Prokaryotic  Promoter Sequences

Promoter

-35 Region

Spacer -10 Region Spacer RNA start
trp operon TTGACA N17 TTAACT N7 A
tRNAtyr TTACA N16 TATGAT N7 A
λP2 TTGACA N17 GATACT N6 G
lac operon TTTACA N17 TATGTT N6 A
rec A TTGATA N16 TATAAT N7 A
lex A TTCCAA N17 TATACT N6 A
T7A3 TTGACA N17 TACGAT N7 A
consensus TTGACA   TATAAT