Table 1.

Frequency of CPuCCGGPyN sites on different DNAs

No.	Sequence*	pBR322†	pACYC184	Ad2	Lambda
1	CGCCGGCG	0	0	2 (2)	0
2	CGCCGGCA	1 (1)	1 (1)	3 (2)	0
3	CGCCGGCT	1 (1)	1 (1)	2 (2)	1 (0)
4	CGCCGGCC	0	0	0	0
5	CGCCGGTG	1 (1)	1 (1)	3 (3)	5 (5)
6	CGCCGGTA	0	0	0	4 (2)
7	CGCCGGTT	0	1 (1)	1 (1)	3 (1)
8	CGCCGGTC	0	0	0	2 (2)
9	CACCGGTG	0	1 (1)	1 (1)	1 (1)
10	CACCGGTT	0	1 (1)	3 (2)	1 (0)
11	CACCGGTA	0	1 (1)	0	1 (1)
12	CACCGGTC	0	0	0	2 (1)
13	CACCGGCT	1 (1)	0	3 (2)	1 (0)
14	CACCGGCC	0	0	3 (2)	3 (2)
15	CACCGGCA	0	0	0	10 (3)
	CPuCCGGPyN	4 (4)	7 (7)	21 (17)	34 (18)

^*Canonical SgrAI sequences are underlined. 

^† Number of experimentally mapped sites is given in parentheses.