TABLE 2.

Oligonucleotide primers used for PCR amplification and sequencing of strain 1 Enteric Group 137 16S rDNA

No.	IDc	Sequence (5′–3′)a	Positionb	Orientation
1	F24	GAGTTTGATYMTGGCTCAG	9–27	Forward
2	F23	ACGGGAGGCAGCAGY	344–358	Forward
3	F22	RCTGCTGCCTCCCGT	344–358	Reverse
4	F15	TTACCGCGGCTGCTG	519–533	Reverse
5	F16	TAGATACCCYGGTAGTCC	789–806	Forward
6	F17	CCGTCWATTCMTTTGAGTTT	907–926	Reverse
7	F18	GCAACGAGCGCAACC	1099–1113	Forward
8	F20	CCATTGTARCACGTGTG	1226–1242	Reverse
9	F25	AAGGAGGTGWTCCARCC	1525–1541	Reverse

^aBase codes are standard International Union of Biochemistry codes for bases and ambiguity. 

^bNumbering based on E. coli. 

^cID, identification.