Sequence motif - Discovery through evolutionary conservation

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. 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). Sequence motif - Overview. When a sequence motif appears ...

Including:

• Sequence motif - Overview
• Sequence motif - Motif bioinformatics
• Sequence motif - Motifs and consensus sequences
• Sequence motif - Software
• Sequence motif - Discovery through evolutionary conservation
• Sequence motif - Pattern description notations
• Sequence motif - Another scheme

Read more here: » Sequence motif: Encyclopedia - Sequence motif

When a sequence motif appears in the exon of a gene, it may encode the "structural motif" of a protein; that is a stereotypical element of the overall structure of the protein. Nevertheless, motifs need not be associated with a distinctive secondary structure. "Noncoding" sequences are not translated into proteins and nucleic acids with such motifs need not deviate from the typical shape (e.g. the "B-form" DNA double helix). Outside of gene exons, there exist regulatory sequence motifs and motifs within the "junk," such as sate ...

See also:

Sequence motif, Sequence motif - Overview, Sequence motif - Motif bioinformatics, Sequence motif - Motifs and consensus sequences, Sequence motif - Software, Sequence motif - Discovery through evolutionary conservation, Sequence motif - Pattern description notations, Sequence motif - Another scheme

Read more here: » Sequence motif: Encyclopedia II - Sequence motif - Overview