Figure 1
From: Mobile elements in the human genome: implications for disease
Types of retroelements implicated in human disease. ENV, envelope; GAG, group specific antigen; HERV, human endogenous retrovirus; kb, kilobase; LTR, long terminal repeat; ORF, open reading frame; POL, polymerase; SINE, short interspersed element; SVA, SINE-R/VNTR/Alu; TPRT, target primed reverse transcription; UTR, untranslated region; VNTR, variable number of tandem repeats. [99]. Black triangles indicate target site duplications.