Beta-satellite consensus motifs. (a) A multilevel consensus sequence was generated using MEME software analysis of 322 motifs of 71 bp in length over 26,573 bp of BAC 33152 sequence. These regions were analyzed together based on sequence similarity to β-satellite consensus sequence. The information content (described in bits) provides a relative measure of the degree of conservation for each basepair position in the consensus motif. The most favored consensus is shown in boldface with less favored bases shown below each position. A given basepair is only included in the multilevel consensus if it occurs with a frequency of >0.2 in the consensus. (b) A multilevel consensus sequence was similarly constructed based on MEME analysis of 389 motifs of 35 bp in length over 21,036 bp. This analysis was performed on those sequences that were located between regions showing sequence similarity to β-satellites. (c) BESTFIT alignment of the most-favored consensus motifs for the 38-mer and 71-mer repeats against the β-satellite consensus (Vogt 1990) is shown. Sequence that is conserved among all three repeat elements is shaded and boxed. Underlined sequence indicates regions highly conserved among previously identified β-satellite repeat units. (d) Percentage pairwise sequence similarity (BESTFIT software, GCG) is shown for the three consensus motifs.