Table 3.

Distribution of enzymes involved in PAR metabolism in representative bacterial species.

Phylum	Bacterium	PARP	PARG	ARH3-like	MacroD-like	TARG1-like
Firmicutes	Bacillus thuringiensis	+		+	+	+
	Paenibacillus polymyxa	+	+	+3	+	+
	Clostridium citroniaea	+	+	+2	+2	+
	Butyrivibrio proteoclasticus	+	+	+	+	+2
	Eubacterium rectale	+	+2		+5
Bacteroidetes	Fibrella aestuarina	+		+2	+
	Microscilla marina	+2	+2	+8	+	+
	Fibrisoma limi	+			+
	Spirosoma linguale	+
	Flexibacter litoralis	+	+2	+2	+	+
Actinobacteria	Mycobacterium abscessus	+
	Microbacterium maritypicum	+
Proteobacteria	Vibrio fluvialisa	+		+	+	+
	Plesiocystis pacificaa	+	+	+3	+
Cyanobacteria	Stanieria cyanosphaera	+				+
Chloroflexi	Herpetosiphon aurantiacus	+	+	+3	+2	+

^aBacterial species with draft sequenced genome; number indicates presence of several protein homologues.