Leptospira species and serovars identified by MALDI-TOF mass spectrometry after database implementation

BMC Research Notes

Table 2 Differentiating peaks obtained by statistical analysis of 12 serovars belonging to the species L . interrogans

Serovars	Peak mass (m/z) representing the protein size in Dalton
Serovars	3,506	3,684	3,952	5,059	5,527	5,658	5,671	5,782	6,193	6,284	6,356	6,915	6,941	6,970	7,013	7,059	7,077	7,902	11,049	11,311
Autumnalis	-	+	-	-	+	-	-	-	-	-	-	-	-	-	-	-	-	-	+	-
Canicola	§	-	§	-	-	§	-	§	+	§	-	+	+	+	+	+	+	§	-	§
Icterohaemorrhagiae	§	+	+	+	+	§	-	+	-	-	+	-	-	§	+	§	+	+	+	+
Hardjo	+	-	+	+	-	-	+	+	+	+	+	+	+	+	+	+	+	§	-	§
Hebdomadis	§	+	+	+	-	-	-	§	+	-	-	-	§	§	-	+	+	§	-	-
Pomona	+	+	+	+	-	-	-	+	+	+	+	-	§	+	+	+	+	+	-	-
Saxkoebing	-	-	§	+	-	-	-	§	-	§	§	-	§	+	+	+	+	+	+	§
Batavie	+	+	§	+	+	+	+	-	+	-	-	+	+	+	+	+	+	§	+	+
Bratislava	+	+	+	+	+	+	§	+	+	+	+	§	+	+	+	+	+	+	+	+
Lora	-	-	+	§	-	-	+	+	§	+	+	-	-	-	-	§	§	+	-	-
Copenhageni	-	+	+	§	+	-	-	-	+	+	-	-	-	-	-	-	§	§	+	-
Zanoni	-	+	-	-	+	+	+	-	-	-	-	+	+	-	-	-	-	-	§	+

The identification of each serovar is derived from the combinations of the 20 discriminating considered peaks.
+: peak with area/intensity of the Serovar Average Spectrum higher than the Total Average Spectrum for the respective considered peak.
-: no peak found.
§: peak with area/intensity of the Serovar Average Spectrum lower than the Total Average Spectrum for the respective considered peak.

ISSN: 1756-0500