Figure 2
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2180-13-226/MediaObjects/12866_2013_Article_2096_Fig2_HTML.jpg)
Schematic representation of glnA1 promoter. glnA1 gene with two promoters P1 and P2. +1 represents glnA1 translational start site. The red arrow represents the transcriptional start site. The black arrow represents the position of primers used to make deletion variants of the glnA1 promoter.