Table 7

Identification and analysis of the catfish polyadenylation signal (PAS)
Hexamer Number of transcripts Found in catfish1 Found in salmon2 Found in human3
AAUAAA 1,264 + + +
AUUAAA 435 + + +
AAAAAA 47 +
UAUAAA 25 + + +
AAGAAA 23 + +
AAUATA 20 + + +
CAUAAA 19 +
AACAAA 18
AAUACA 18 +
AAUGAA 16 +
AGUAAA 15 + +
AAUAAU 10
ACUAAA 10 +
AAUUAA 10

A subset of the full-length transcripts with polyA tails generated from sequencing were selected for analysis. Most common PAS alternatives (hexamers with single-base variant of AAUAAA) were identified within 35 nucleotides upstream of the polyA tail from full-length transcripts. 1Alternative PAS identified in Chen et al. (2010) [15]; 2 Alternative PAS identified in Andreassen et al. (2009) [25]; and 3Alternative PAS identified in Macdonald et al. (2002) [37].

Liu et al.

Liu et al. BMC Genomics 2012 13:595   doi:10.1186/1471-2164-13-595

Open Data