Table 2.
Retroviridae genera | in Transcription Unitsa | ± 2kb Transcription Start Sitesa | ± 2 kb CpG Islandsa |
---|---|---|---|
Lentiviruses | +/++ | 0 | −/0 |
Alpharetroviruses | + | 0 | + |
Betaretroviruses | 0 | 0 | 0 |
Gammaretroviruses | + | ++ | ++ |
Deltaretroviruses | + | + | + |
Epsilonretroviruses | NA | NA | NA |
Spumaviruses | 0 | ++ | ++ |
HERV-class II | + | ++ | ++ |
ratio between the proportion of the chromosomal feature over the random proportion in the human genome, according to RefSeq databases and with values from [69,87,88,90,94,95].
0: no statistical difference over random;
+/++: statistically favored feature over random with ++ for ratio >2 and + for a ratio <2;
−: statistically disfavored feature over random
NA : not available