Figure 6From: Decoding the nucleoid organisation of Bacillus subtilis and Escherichia coli through gene expression dataThe possible chromosome configuration. We assume that the nucleoid structure consists of a solenoid with two types of spirals: • Large spirals of uncoiled DNA, containing the genes that are transcribed, that lie on the surface of the nucleoid and define its diameter (0.5 μ m). • Small spirals of coiled untranscribed DNA that lie inside the nucleoid.Back to article page