Table 6.

Function and origin of LGTs in amoeba-resisting viruses.

Function	Mimivirus			Marseillevirus
	E	B	P	E	B	P
Translation	xa			xa
tRNA modification	x
Repair					x	x
Defense					x	x
Signal transduction				x
Polysaccharide metabolism		x		x	x
Nucleotide metabolism		x		x	x
Amino acid metabolism	x			x	x
Protein modification and degradation	x			x	x
Lipid metabolism	x			x	x

E, Eukaryote; B, Bacteria; P, Bacteriophage.

^aMore precisely, acquired from host.