Contribution of type W human endogenous retroviruses to the human genome: characterization of HERV-W proviral insertions and processed pseudogenes

Table 1 Recurrent mutations in HERV-W subgroup 2 LTRs

Position (nt)^a	Substitution^b	PV^d subgroup 2B	PV^d subgroup 2A	Subgroup 1
Type 2B additional mutations
133	A>G	100	48.1	0
188	C>A	90	19.2	0
252	C>G	90	40.7	1.7

^aNucleotide positions are referred to RepBase Update LTR17consensus
^bSubstitutions are indicated with the original nucleotide and the acquired new variant separate by the symbol >
^cRelative percentage based on the total of sequences that hold the position in an alignment
^dProviruses
^ePseudogenes

ISSN: 1742-4690