Table 1.
Summary of clinical data for the 15 ARNSHL patients from 14 unrelated families with MYO15A variants
Family ID | Gender | Age of test (year) | Zygosity | Nucleotide Change (NM_016239.3) | Amino Acid Change (NP_057323.3) | Protein Domain | Hearing impairment phenotype | Method of hearing rehabilitation | ||
---|---|---|---|---|---|---|---|---|---|---|
Age of onset (year) | Severity (PTA) | Type of audiometry | ||||||||
139,408 | M | 23 | Hom | c.6479C > T | p.Pro2160Leu | MyTH4 1 | Congenital | Profound | Flat | CI(L) |
1,507,361 | M | 3 | Het | c.6796G > A | p.Val2266Met | Other | Congenital | Profound | Flat | HA(Bi) |
c.8771G > A | p.Arg2924His | SH3 | ||||||||
1,507,382 | M | 6 | Het | c.4666G > A | p.Ala1556Thr | Motor | Pre-lingual(5 yr) progressive | Severe / residual hearing of low frequencies | Down-sloping | HA(Bi) |
c.6177 + 1G > T | Splice site | Other | ||||||||
1,606,852 | M | 2 | Het | c.7708_7709insCA | p.Gln2571Hisfs*35 | Other | Congenital | Profound | Flat | Nothing |
c.5977C > T | p.Arg1993Trp | Other | ||||||||
1,607,486–1 | F | 62 | Het | c.4823C > A | p.Ala1608Glu | Motor | Congenital | Profound | Flat | Nothing |
c.7396-1G > A | Splice site | Other | ||||||||
1,607,486–2 | M | 66 | Het | c.4823C > A | p.Ala1608Glu | Motor | Congenital | Profound | Flat | Nothing |
c.7396-1G > A | Splice site | Other | ||||||||
1,607,107 | F | 1 | Het | c.5507 T > C | p.Leu1836Pro | Motor | Congenital | Profound | Flat | CI(R) |
c.8324G > A | p.Arg2775His | FERM 1 | ||||||||
1,607,545 | F | 3 | Het | c.855dupT | p.Pro286Serfs*15 | N-terminal | Congenital progressive | Severe /residual hearing of low frequencies | Down-sloping | HA(Bi) |
c.3524dupA | p.Ser1176Valfs*14 | N-terminal | ||||||||
c.7822G > A | p.Asp2608Asn | Other | ||||||||
1,607,551 | M | 30 | Het | c.4441 T > C | p.Ser1481Pro | Motor | Congenital | Severe | Flat | HA(Bi) |
c.8033_8056del | p.Asn2678fs | Other | ||||||||
1,707,735 | M | 5 | Het | c.3742C > T | p.Arg1248Trp | Motor | Congenital | Severe | Flat | HA(Bi) |
c.10251_10253delCTT | p.Phe3420del | FERM 2 | ||||||||
1,707,757 | F | 6 | Het | c.5692C > T | P.Arg1898* | Motor | Congenital | Severe | Flat | HA(Bi) |
c.7396-1G > A | Splice site | Other | ||||||||
1,707,773 | F | 3 | Het | c.4252G > A | p.Gly1418Arg | Motor | Congenital | Profound | Flat | CI(R) |
c.4596 + 1G > A | Splice site | Motor | ||||||||
1,897,966 | M | 6 | Het | c.5964 + 3G > A | Splice site | Other | Congenital | Profound | Flat | CI(R) |
c.8791del | p.Trp2931Glyfs*103 | SH3 | ||||||||
1,897,999 | F | 28 | Het | c.4747 T > C | p.Ser1583Pro | Motor | Congenital | Profound | Flat | Nothing |
c.10502 T > A | p.Leu3501Glu | Other | ||||||||
1,801,948 | M | 16 | Het | c.4597-2A > G | Splice site | Motor | Congenital | Profound | Flat | HA(Bi) |
c.8077del | p.Leu2693Cysfs*45 | FERM 1 | ||||||||
c.10420A > G | p.Ser3474Glya | FERM 2 |
Abbreviations: L Left, R Right, Bi Bilateral, CI Cochlear Implant, HA Hearing aid, F Female, M Male
a The pathogenicity of the Ser3474Gly variant is quite problematic due to the finding of two homozygotes with an unknown phenotype in the ExAC database, and because it has been reported as not pathogenic in a Korean DFNB3 family