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Table 1 ERV/LTR groups mentioned in this review

From: Endogenous retroviral promoter exaptation in human cancer

ERV Class

ERV Group

Associated LTRs (Repbase names)

~Copies of internal regionsa

~Copies of solitary LTRsb

I (ERV1)

HERV-H

LTR7, 7B, 7C, 7Y

1060

1270

 

HERV-9

LTR12, 12B-12 F

450

6500

 

HERV-E

LTR2, 2B, 2C

250

720

 

HUERS-P2

LTR1, 1A-1 F

120

3000

 

LOR1

LOR1a, 1b

175

1080

 

MER41

MER41A-41G

275

4110

II (ERVK)

HERV-K (HML-2)

LTR5, 5A, 5B, 5Hs

80

1200

III (ERVL)

HERV16

LTR16A-16E

860

18100

III (MaLR)

THE

THE1A-1D

7900

21260

 

MLT1

MLT1A-1O

3820

146,550

  1. aCopy numbers of internal regions estimated from Dfam (dfam.org) [50]
  2. bSolitary LTR numbers estimated from Dfam coverage minus 2x internal region numbers, assuming all internal regions are associated with two LTRs