Table 1.

Cis elements of poly(A) sites in X. tropicalis.

Region	Sequence logo	Name	No. of hexamers	Top three hexamers
−100/−35		USE.1	32	UUUUAU, UUUUGU, UUUGUA
		USE.2	25	UUUUUU, UUUUUA, UAUUUU
		USE.3	6	AAAUGU, AAAUAU, AAUGUU
		USE.4	5	UGUAAA, UAAAUA, GUAUAU
−34/−13		PE.1	13	AAUAAA, AUAAAA, AUAAAU
		PE.2	19	AAAUAA, UAAAUA, UAAUAA
		PE.3	5	AUUAAA, UUAAAU, UAUUAA
−12/−3		CEL.1	3	UUUAUA, UUUCUA, GUUUAU
		CEL.2	3	UUUUCA, AUUUUC, GUUUUCs
+1/+33		CER.1	15	UUGUUU, UGUGUU, UUGUGU
		CER.2	30	UUUUUA, UUUUAU, UUUUGU
		CER.3	14	UUUUUU, UUUAUU, UGUUUU
+34/+100		DSE.1	4	AAAUGU, UAAAUG, ACAUGU
		DSE.2	3	AAGAAA, AUAAUA, AGAAUG
		DSE.3	7	UAUAUA, AUAUAU, AAUAUA