An inverted repeat (or IR) is a sequence of nucleotides that is the reversed complement of another sequence further downstream.
For example, 5'---GACTGC....GCAGTC---3'. When no nucleotides intervene between the sequence and its downstream complement, it is called a palindrome. Inverted repeats define the boundaries in transposons. Inverted repeats also indicate regions capable of self-complementary base pairing (regions within a single sequence which can base pair with each other).
Read more about Inverted Repeat: Examples
Famous quotes containing the words inverted and/or repeat:
“Ulysses ... is a dogged attempt to cover the universe with mud, an inverted Victorianism, an attempt to make crossness and dirt succeed where sweetness and light failed, a simplification of the human character in the interests of Hell.”
—E.M. (Edward Morgan)
“What other words, we may almost ask, are memorable and worthy to be repeated than those which love has inspired? It is wonderful that they were ever uttered. They are few and rare indeed, but, like a strain of music, they are incessantly repeated and modulated by the memory. All other words crumble off with the stucco which overlies the heart. We should not dare to repeat these now aloud. We are not competent to hear them at all times.”
—Henry David Thoreau (1817–1862)