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Table 2 Transcripts with putative alternative poly-adenylation events in S. mansoni, as suggested by SAGE.

From: A quantitative view of the transcriptome of Schistosoma mansoni adult-worms using SAGE

Gene (Accession GenBank)

mRNA size (nt)

CDS

SAGE tag sequence; tag position (nt); tag frequency (tags/million); tag rank.

Use of canonical polyadenylation site? (Sequence & Position – nt)

Affecting coding region?#

AREs possibly removed by the alternative poly-adenylation event*

Rac GTPase (AY158217)

2,383

211..777

tgtgtgtgta; 951; 366; 1.

No

No

3 out of 4

   

acaagttatg; 1959; 351; 0.

No

No

 

Receptor tyrosine kinase (AF101194)

6,022

120..4799

tcaatcatta; 821; 249; 1.

No

Yes

4 out of 4

   

aagaaatgca; 2013; 132; 0.

No

No

 

Myosin light chain (AF071011)

965

30..512

aatcctaatc; 651; 29; 1.

No

No

2 out of 2

   

aatatataca; 819; 44; 0.

Yes

No

 

Calponin homolog (U86674)

1,963

12..1097

tttatcttca; 1467; 44; 1.

Yes (AATAAA – 1,480)

No

2 out of 4

   

cccaaccctc; 1677; 513; 0.

No

No

 

Dynein light chain (U55992)

469

6..275

gcattgtata; 163; 29; 1.

No

No

0 out of 0

   

aaacccataa; 207; 689; 0.

No

No

 

Enolase trans-spliced (U30175)

1,461

40..1344

caacgttggt; 650; 29; 1.

Yes (ATTAAA – 1,024)

Yes

2 out of 2

   

tcgttctgat; 1235; 2154; 0.

Yes (AATAAA – 1,353)

No

 

Cyclophilin (L46884)

571

16..501

tgtcagggtg; 189; 44; 1.

Yes (AATAAA – 250)

Yes

0 out of 0

   

ttgttttcgg; 382; 1465; 0.

No

No

 

Actin (U19945)

1,538

45..1175

gccgacgagg; 44; 29; 2.

No

Yes

5 out of 5

   

aagtgtgatg; 893; 1216; 1.

No

Yes

5 out of 5

   

acatcaacaa; 1307; 3297; 0.

Yes (AATAAA – 1,366)

No

 

Phosphofructokinase (L31531)

3,087

147..2492

ttcctttcat; 2895; 29; 2.

No

No

1 out of 3

   

ttttccgttt; 2984; 59; 1.

Yes (AATAAA – 3,025)

No

0 out of 3

   

taaaaaaaaa; 3043; 103; 0.

No

No

 

Triose phosphate isomerase (M83294)

1,080

33..794

atgtcgatgg; 714; 29; 1.

Yes (ATTAAA – 749)

No

4 out of 4

   

tcagttactt; 844; 938; 0.

Yes (AATAAA – 1,066)

No

 

Superoxide dismutase (M27529)

623

7..561

gataccccag; 319; 29; 2.

No

No

0 out of 0

   

tgctacaata; 530; 29; 1.

No

No

0 out of 0

   

aaatgatttt; 557; 249; 0.

Yes (AATAAA – 588)

No

 

Cu/Zn superoxide dismutase (M97298)

605

23..484

cctattctcc; 513; 498; 1.

No

No

2 out of 2

   

cacaaataaa; 580; 161; 0.

Yes (AATAAA – 588)

No

 

PUR-alpha-like (AF254148)

1,282

77..880

tgcttaatag; 1110; 191; 1.

No

No

1 out of 3

   

ttagatttct; 1242; 15; 0.

No

No

 
  1. Transcripts with alternative poly-adenylation events were considered only when confirmed by at least 2 SAGE tags, without downstream internal binding sites for oligo-dT (fake polyA). # – alternative-polyadenylation events affecting the coding region were considered when the alternative upstream tags were located at least 256 nt before the original stop-codon. CDS – stands for the cDNA coordinates of the coding region of the gene. * refers to the number of putative Adenylate Rich Elements (AREs) present in the 3'UTR, that are located downstream of the most 5' SAGE tag found in a transcript, out of the total 3' UTR AREs of the transcript.