Table 2.

Presence/absence of the 15 D. fragilis discriminating peaks in the 14 clinical isolates tested

Strain	Peak mass (Da)
	4309	4758	5041	5087	5100	5121	5205	5433	5516	6285	6298	6377	6387	6404	10,239
357	+	+	+	–	+	+	+	+	+	–	+	+	+	+	–
372	+	+	+	–	+	+	+	–	+	–	+	–	+	+	–
471	+	+	+	–	+	+	–	–	+	–	–	–	+	–	–
1272	+	+	+	–	+	+	+	–	+	–	+	+	+	+	–
1668	+	+	+	–	+	–	+	+	+	–	+	+	+	+	–
1686	+	+	+	–	+	–	–	–	+	+	–	+	+	–	–
1710	+	+	+	–	+	–	–	–	+	–	–	+	+	–	–
1719	+	+	+	–	+	–	+	+	+	–	+	+	+	+	–
2005	+	+	+	–	+	–	+	+	+	–	+	+	+	+	–
64	+	+	+	–	+	+	–	–	+	–	+	+	+	–	–
32	+	+	+	+	+	–	+	+	+	–	+	+	+	+	–
82	+	+	+	–	+	+	–	–	+	+	+	+	+	–	–
121	+	+	+	–	+	–	+	+	+	+	+	+	+	+	–
130	+	+	+	+	+	–	+	+	+	+	+	+	+	+	–
%	100	100	100	14.3	100	42.9	71.4	50.0	100	26.7	78.6	85.7	100	71.4	0

Abbreviations: Da, Dalton; +, presence; –, absence