TABLE 2.

Previously described HERV families investigated in this study

Family	Alternative name	Accession no.	Closest match			Reference
			Cosmida	% Identity	Region of identity
HERV.E		M10976				48
HERV.I	RTLV-I	M92067				29
HERV.W	MSRV	AF009668				46,9
HERV.H	RTLV-H	K01891, D11078				30,17
HERV.L		X89211				12
HERV.K		M14123				42
ERV-9		X57147				23
HERV.HML6		HSU60268–HSU60270				36
HERV.ADP	ADP-pol	L14752				28
HERV.FRD		U27240				49
HERV.R	ERV-3	M12140	AC004609	89	150 bp of pol	40
ERV-1		K02916/7	AC004609	82	2 100-bp regions of gag	11
NP-2		M15971	AL023280	84	300 bp of env	51
Hs5		D10450	AC004054	85	1,000 bp of env	24
HERV.S71		M32788	AC002992a	88	300 bp of RNase H gene	59
RRHERV.I		M64936	AC002992b	90	500 bp of env	20
HERV.P	HuRRS-P	—b	AC002069	99	130 amino acids of Pol	22
HERV.XA		U29659	AC000378	88	500 bp of pol	60
HERV.HML1		U35102	Z70280	95	230 bp of pol	35
HERV.HML2		U35104	Z70280	80	230 bp of pol	35
HERV.HML3		U35153	Z83745a	94	230 bp of pol	35
HERV.HML4		U35160	HERV.K10	86	50 bp of pol	35
HERV.HML5		U35161	AC004536	88	230 bp of pol	35
HERV-FTD		U27241	AC004682	82	500 bp of pol	49
HRES-1		X16660	No match			45

^aAccession number of closest cosmid match if pol gene sequence from prototype isolate was not available. 

^b—, see reference for sequence.