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Table 3 FMR1 and FMR2 full-mutations detected by ExpansionHunter, GangSTR, and TREDPARSE with lowered repeat length threshold

From: Genome-wide sequencing as a first-tier screening test for short tandem repeat expansions

Aligner

Isaac

BWA

Locus

FMR1 (n = 18)

FMR2 (n = 3)

FMR1 (n = 18)

FMR2 (n = 3)

FM threshold

54 repeats

60 repeats

54 repeats

60 repeats

Allelic classification

FM

IM

NL

FP

FM

NL

FP

FM

IM

NL

FP

FM

NL

FP

EH_v2

18

.

.

20

3

.

0

18

.

.

16

3

.

0

EH_v3

18

.

.

22

3

.

0

18

.

.

22

3

.

0

GangSTR

4

.

14

7

0

3

0

3

.

15

0

0

3

0

TREDPARSE

15

1

2

8

0

3

0

16

.

2

13

0

3

0

  1. The number of full-mutations (FMs) misclassified as normal (NL; < 45 repeats for FMR1 and < 31 repeats for FMR2) or intermediate (IM; 45–54 repeats for FMR1) allele are shown. The true number (n) of known FM alleles in the FMR1 and FMR2 genes is indicated in parenthesis. False-positive (FP) calls made by the tools are also reported