Where is the promotor region of a prokaryotic gene located?

Answer 1

Promoter is a fragment of DNA sequence that is responsible that transcription DNA to RAN. Through the study on promoter, we can find out which DNA sequence will be transcribed into RNA, and we can even transcribe any DNA sequence which we intend to study into RNA.

A gene can be roughly divided into five part: Promoter, 5'UTRs, exon, introns, 3'UTRs, and Ploy A site.

The promoter is defined as the sequence in the region of the upstream, of the transcription start site.

Answer 2

The promoter region usually upstream of the structural gene tells transcription factors where to bind on the DNA. In RNA of prokaryotes, there is Shine-Dalgarno sequence that tells small ribosomal subunit where to bind on the mRNA. In RNA of eukaryote there Kozak sequence that tells small subunit where to bind on the mature messenger RNA.

Answer 3

A promoter region is where the enzymes attach to begin DNA replication.

Promoter regions typically lie upstream of the gene and can have regulatory elements several kb away from the transcriptional start site. Sometimes, promoter regions could lie far upstream of the transcriptional start site. Promoter regions often contain TATA box (sequence TATAAA) and/or E-box (sequence CACGTG).

For example see link

Answer 4

a region in which tRNA add to "promote" the area