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Table 3 The number of occurrences of the GUACAUUA and its single nucleotide degenerate variants is examined in Paramecium and four additional species (T. thermophila, D. melanogaster, A. thaliana and H. sapiens).

From: Evolutionary dynamics of a conserved sequence motif in the ribosomal genes of the ciliate Paramecium

Species

Number of ribosomal 3'UTRs

GUACAUUA (count)

GUACAUUA single nucleotide degenerate variants (count)†

P. tetraurelia

472

100 (1)

246 (38)

T. thermophila

81

1 (1)

16 (35)

D. melanogaster

186

1 (2)

19 (37)

A. thaliana

432

2 (3)

28 (77)

H. sapiens

283

1 (3)

43 (83)

  1. A motif is considered over- represented if its frequency in the set of ribosomal 3' UTRs is significantly higher (P < 0.01) than its frequency in the set of non-ribosomal 3' UTRs. Average numbers of hits expected by chance arein parentheses. † = multiple hits are included