The upstream sequence where the σ protein binds constitutes the promoter sequence.

The upstream sequence where the σ protein binds constitutes the promoter sequence. Correct Answer True

This includes the sequence segments located 35 and 10 base pairs (bp) upstream from the transcription start site. They are also referred to as the −35 and −10 boxes. For the σ70 subunit in Escherichia coli, for example, the −35 box has a consensus sequence of TTGACA. The –10 box has a consensus of TATAAT.

Related Questions

Some vectors carry a mutant form of promoter known as lacUV5 promoter. It carries ______ in the promoter region and _____ the efficiency.