Table 1.

Results of the ChIP-Seq of NtcA in Anabaena sp. PCC 7120 after N step-down

DNA	Size (kb)	Binding regions found	Genes ascribed	Position of the binding region with respect to the gene*
				Upstream	Internal	Downstream
Chromosome	6413	2143	1939	802	1548	74
Alpha	408	145	103	37	103	5
Beta	187	86	66	16	71	0
Delta	55.4	12	10	2	10	0
Epsilon	40.3	10	9	3	7	0
Gamma	102	28	26	5	23	0
Zeta	5.6	0
Total	7212	2424	2153	865	1762	79

*Total number of entries in Additional file 2: Table S1 (2706) was used (some binding regions have been ascribed to more than one gene).