DNA Repeat types

https://en.wikipedia.org/wiki/Repeated_sequence_%28DNA%29 Repeats can be categorized as 3 major categories: Terminal repeats, Tandem repeats & Interspersed repeats

• Terminal repeats
  • also called Long terminal repeats (LTRs)
  • they are identical sequences of DNA that repeat hundreds or thousands of times found at either end of retrotransposons or proviral DNA formed by reverse transcription of retroviral RNA[citation needed]. They are used by viruses to insert their genetic material into the host genomes.
• Tandemly repeated DNA
  • definition: copies lie adjacent to each other, directly or inverted
  • subtypes: satellite DNA, minisatellite, microsatellite
  • often associated with disease syndromes
  • Telomeres
    • Contain long arrays of TTAGGG repeats
    • Repeats form nucleoprotein complex: Associate with TERF proteins
    • Repeat function
• Interspersed repetitive DNA (seems also called transposable elements)
  • DNA Transposons: does not involve an RNA intermediate
  • retroposons
    • LTR-retrotransposons: with long terminal repeats
    • non LTR-retrotransposons: without
      • Short Interspersed Nuclear Elements (SINEs)
        • Alu
        • Mariner (Mariner-like) elements
      • Long Interspersed Nuclear Elements (LINEs): e.g.: L1
• Other types: direct repeats, inverted repeats

Genome Browser

• Short interspersed nuclear elements (SINE), which include ALUs
• Long interspersed nuclear elements (LINE)
• Long terminal repeat elements (LTR), which include retroposons
• DNA repeat elements (DNA)
• Simple repeats (micro-satellites)
• Low complexity repeats
• Satellite repeats
• RNA repeats (including RNA, tRNA, rRNA, snRNA, scRNA, srpRNA)
• Other repeats, which includes class RC (Rolling Circle)
• Unknown

Other

• http://neuromuscular.wustl.edu/mother/dnarep.htm