The structural characteristics of mite HINE families and Drosophila DINE-1 . (A) The structure of the HINE families. The green arrows denote the subterminal inverted repeats (subTIRs). The yellow box represents the central repeats. The pink stem loop denotes the palindrome at the 3' end. (B) Sequence comparison of the HINE families and subfamilies. Mo is the abbreviation for Metaseiulus occidentalis, the numerals represent the family, and the subfamilies are shown by the letter number combinations. The green letters denote the subTIRs. The underlined sequence represents the palindromic sequence present internal or proximal to the subTIRs. The pink letters represent the palindrome on the 3' end. (C) The composite structure of DINE-1 from the 12 Drosophila genomes (redrawn from ). The green arrows denote the subTIRs. The blue box represents the sequence conserved across 12 Drosophila genomes. The brown box represents the microsatellite sequence. The yellow box represents the central repeats. The green sideways triangle in the 5' end represents the 3' side of the inverted repeat (IR) (the 5' side is nested inside the 5' subTIR). The pink stem loop denotes the palindrome at the 3' end.