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Table 2 Performance of PanGEA-BlastN with the 454-platform using the recommended settings.

From: PanGEA: Identification of allele specific gene expression using the 454 technology

tag-to-gene mapping1

  

normal mode

Intron mode

L2

s3

a4

c5

w6

n7

i8

t9

a4

c5

w6

n7

i8

t9

 

100

126

997

1

2

6

10

111

993

5

2

63

10

100

95

95

932

6

62

0

11

104

952

6

42

11

11

 

90

42

408

13

579

0

4

35

450

10

540

0

5

 

100

86

993

5

2

87

34

108

991

8

1

206

40

200

95

88

988

8

4

88

38

91

994

5

1

170

41

 

90

90

953

5

42

44

37

78

885

13

102

75

36

 

100

114

986

10

4

211

84

94

996

3

1

407

90

300

95

86

988

10

2

188

81

102

990

6

4

354

95

 

90

103

984

8

8

162

85

99

992

7

1

263

93

 

100

74

994

4

2

312

128

85

988

7

5

574

153

400

95

87

986

12

2

300

137

79

981

13

6

499

153

 

90

78

986

14

0

250

150

85

993

4

3

366

151

tag-to-genome mapping10

 

100

32

1000

0

0

11

11

21

998

1

1

42

10

100

95

27

973

2

25

1

14

23

984

2

14

24

22

 

90

14

399

4

597

0

14

11

337

13

650

1

4

 

100

31

997

3

0

93

59

25

994

6

0

190

55

200

95

31

993

7

0

82

49

20

995

5

0

154

51

 

90

20

961

1

38

42

45

12

956

1

43

99

47

 

100

26

998

2

0

214

94

27

997

3

0

341

107

300

95

16

998

2

0

178

96

21

995

5

0

285

113

 

90

23

972

9

19

151

99

21

989

10

1

250

102

 

100

21

999

1

0

328

194

20

998

2

0

496

181

400

95

15

998

2

0

287

144

23

993

7

0

422

178

 

90

19

996

4

0

260

168

20

992

8

0

400

168

  1. Values were calculated for mapping 1000 randomly excised ESTs, either to the genes or to the whole genome of D. melanogaster
  2. 1 settings: word length 11; minimum diagonal 3; low complexity threshold 10; homopolymer Smith-Waterman algorithm; no maximum intron length
  3. 2 length of the tags in bp
  4. 3 similarity of the tag with the target sequence in percent
  5. 4 ambiguous mapping results; min score difference for unambiguous best hit 12
  6. 5 correctly mapped tags (including ambiguous results containing the correct hit)
  7. 6 wrongly mapped tags (including ambiguous results not containing the correct hit)
  8. 7 no hit identified
  9. 8 number of long gaps (> 50 bp), putative introns
  10. 9 mapping time in seconds, without the time required for constructing the word hash-table
  11. 10 settings as above, only the maximum intron length was set to 5000 bp