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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Mol Microbiol. 2012 Dec 26;87(3):580–593. doi: 10.1111/mmi.12117

Table 1.

Summary of features of siRNA-producing loci.

Element Chromosomes Regions Characteristics
SLACS 2, 8, 16, 25, 31 all

  • retroposon associated with SL RNA genes

  • reverse transcriptase (RT) domain
TATE 1, 3–5, 7, 11–13, 18, 24–32, 34, 35 telomeric, subtelomeric

  • DNA transposon associated with telomere hexamers (GGGTTA)

  • associated with TAS-like elements

  • RT and phage integrase domains
TAS-like 1–5, 7–13, 16–19, 23–25, 27–35 telomeric, subtelomeric

  • no ORFs

  • associated with TATE
CIR74 2 and 27 internal, subtelomeric

  • no ORFS

  • clusters of 74-nucleotide repeats