Table 1

SDHA-C variants in cases from cohorts 1 (Aus) and 2 (UK) and also present in ExAC 

GeneVariants†LOVD ID (26)Number of probands (allele frequencies, %)Allele frequencies in ExAC (-TCGA)
Aus (n=575)UK (n=1240)Combined, %Total, %European (non-Finnish), %
SDHA c.91C>T, p.Arg31*SDHA_0000133 (0.26)n/a0.0140.026
 c.512G>A, p.Arg171HisNovel1 (0.087)n/a0.00090
 Non-ExAC variants5 (0.43)
Total9 (0.78)n/a0.780.0150.022
SDHB c.79C>T, p.Arg27*SDHB_0001502 (0.17)8 (0.32)0.280.0010
 c.88delC, p.Gln30Argfs*47SDHB_0000173 (0.26)7 (0.28)0.280.00090.0018
 c.136C>T, p.Arg46*SDHB_0000214 (0.35)11 (0.44)0.410.00190.0018
 c.268C>T, p.Arg90*SDHB_00000114 (1.2)8 (0.32)0.610.0010.0019
 c.423+1G>ASDHB_0000472 (0.17)3 (0.12)0.140.00090.0018
 c.343C>T, p.Arg115*SDHB_0000420 (0)6 (0.24)0.170.00190.0037
 c.649C>G, p.Arg217Glynovel0 (0)1 (0.04)0.0280.0010.002
 c.688C>T, p.Arg230CysSDHB_0000580 (0)1 (0.04)0.0280.00090.0018
 c.725G>A, p.Arg242HisSDHB_0000045 (0.43)3 (0.12)0.220.00280.0018
 Non-ExAC variants60 (5.2)239 (9.6)8.20
Total90 (7.8)287 (11.6)10.00.0120.014
SDHC c.77+2dupTSDHC_0000490 (0)1 (0.04)0.0280.00090.0018
 c.397C>T, p.Arg133*SDHC_0000151 (0.087)5 (0.2)0.170.00280.0018
 Non-ExAC variants6 (0.52)24 (0.97)0.83
Total7 (0.61)30 (1.2)1.00.00380.0029
  • †RefSeq: for SDHA NG_012339.1, NM_004168.3; for SDHB NG_012340.1, NM_003000.2; for SDHC NG_012767.1, NM_003001.3.

  • ExAC, Exome Aggregate Consortium; SDHx, succinate dehydrogenase subunits A, B and C; TCGA, The Cancer Genome Atlas.

  • Bold values are totals.