In genetics, a sequence motif is a nucleotide or amino-acid sequence pattern that is widespread and has, or is conjectured to have, a biological significance. For proteins, a sequence motif is distinguished from a structural motif, a motif formed by the three dimensional arrangement of amino acids, which may not be adjacent.
An example is the N-glycosylation site motif:
- Asn, followed by anything but Pro, followed by either Ser or Thr, followed by anything but Pro
where the three-letter abbreviations are the conventional designations for amino acids (see genetic code).
Read more about Sequence Motif: Overview, Motif Bioinformatics
Famous quotes containing the word sequence:
“We have defined a story as a narrative of events arranged in their time-sequence. A plot is also a narrative of events, the emphasis falling on causality. “The king died and then the queen died” is a story. “The king died, and then the queen died of grief” is a plot. The time sequence is preserved, but the sense of causality overshadows it.”
—E.M. (Edward Morgan)