Table 1

Genomic annotated ERV structures and evolutionary ages of various ERV families

Name
Total copy number*
Full length
Evolutionary age of origin (Mya)
Reference

MLT1
160 k
36 k
>100
[34]
MST
34 k
5,175
75
[34]
THE1
37 k
9,019
55
[34]
HERV-L (MLT2)
25 k
4,777
>80
[35]
HERV-W
675
242
40-55
[36]
HERV-E
1,138
294
25
[37]
HERV-H
2,508
1,284
>40
[38]
HERV9
4,837
697
15
[39]
HERV-K (HML2)
1,206
178
30
[40, 41]

*Including LTRs with no internal sequence and LTRs with associated internal sequence (see Materials and methods). Elements including both LTR and internal sequence. Representative references with descriptions of each ERV family. Mya, million years ago.

van de Lagemaat et al. Genome Biology 2006 7:R86   doi:10.1186/gb-2006-7-9-r86