Table 1.

UPLC measurements of the concentrations of endogenous porphyrins in Moraxella catarrhalis. The table reports the concentrations of porphyrin/total protein weight (nmol g⁻¹) followed by the constituent ratio (%) in brackets

	Moraxella catarrhalis strains
Porphyrin species	ATCC 25238	108P13B1	142P87B1	46P73B1	5P47B2	74P50B1
Protoporphyrin IX	2.48 (25.42)	3.34 (21.39)	0.63 (16.87)	1.75 (15.31)	1.06 (13.64)	0.44 (13.16)
ZnPPIX	6.45 (66.10)	9.88 (63.18)	1.88 (50.60)	9.00 (78.57)	5.04 (65.09)	2.49 (75.00)
Uroporphyrin	0.02 (0.16)	0.03 (0.17)	0.05 (1.27)	0.06 (0.50)	0.05 (0.65)	0.04 (1.13)
7-Carboxylporphyrin	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)
6-Carboxylporphyrin	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)
5-Carboxylporphyrin	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.00 (0.00)	0.94 (12.09)	0.00 (0.00)
Coproporphyrin	0.81 (8.31)	2.38 (15.25)	1.16 (31.26)	0.64 (5.63)	0.66 (8.53)	0.36 (10.72)
SUM	9.75 (100.00)	15.63 (100.00)	3.72 (100.00)	11.46 (100.00)	7.74 (100.00)	3.32 (100.00)