Table 2

Allele frequencies of polymorphic variants of RET in 33 CCHS patients and 156 controls

Allele frequency*Statistics
Exon/intronNucleotide change/codon positionRestriction site changedControl populationCCHS populationChi-
 squarep value
*Allele frequencies of the wild type allele, which is underlined in the column “Nucleotide change/codon position”.
†For the c.2508 polymorphism only 153 controls were tested.
‡For the intron 2 ds+9 polymorphism only 114 controls were tested.
Exon 2GCG to GCAEagI76.3%63.6%4.5360.044
c.135G/A
Exon 3GTC to GTAMboII98.1%100%1.1070.592
c.375C/A
Exon 7GCG to GCABsmI72.4%60.6%3.6560.074
c.1296G/A
Exon 11GGT to AGTBanI79.8%80.3%0.0081.0
c.2071G/A
Exon 13CTT to CTGTaqI76.3%71.2%0.7550.432
c.2307T/G
Exon 14AGC to AGTAluI96.4%†93.9%0.8530.487
c.2508C/T
Exon 15TCC to TCGRsaI80.1%81.8%0.0990.865
c.2712C/G