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Table 4 The most abundant biological processes assigned to the A. mexicanum contigs

From: An Ambystoma mexicanumEST sequencing project: analysis of 17,352 expressed sequence tags from embryonic and regenerating blastema cDNA libraries

Biological process

Total number of contigs

% contigs

BL/NT

Fisher's exact (BL/NT)

Protein metabolism

324

15

116/132

3/1

Metabolism

296

13.7

78/170

0/3

Intracellular transport

268

12.4

59/53

4/5

RNA metabolism

227

10.5

127/45

22/2

Cell cycle

194

9

95/52

5/2

Intracellular signaling

148

6.8

95/65

1/6

DNA metabolism/repair

90

4.1

50/12

3/0

Development

69

3.2

32/27

0/2

Cell-cell communication

81

3.7

24/42

0/6

Differentiation

27

1.5

13/7

2/3

  1. The highest-ranking biological process is 'protein metabolism/modification' with 15% of contigs assigned. 'Cellular metabolism', 'intracellular transport' and 'RNA metabolism' have all more than 10% of contigs assigned and represent the most abundant gene families in the two libraries. The percentage contigs refers to the number of contigs assigned a biological process. BL: Blastema; NT: Neural tube.