TY - JOUR
T1 - Novel HARS2 missense variants identified in individuals with sensorineural hearing impairment and Perrault syndrome
AU - Karstensen, Helena Gásdal
AU - Rendtorff, Nanna Dahl
AU - Hindbæk, Lone Sandbjerg
AU - Colombo, Roberto
AU - Stein, Amelie
AU - Birkebæk, Niels Holtum
AU - Hartmann-Petersen, Rasmus
AU - Lindorff-Larsen, Kresten
AU - Højland, Allan Thomas
AU - Petersen, Michael Bjørn
AU - Tranebjærg, Lisbeth
PY - 2020/3
Y1 - 2020/3
N2 - Biallelic variants in HARS2 have been associated with Perrault syndrome, characterized by sensorineural hearing impairment and premature ovarian insufficiency. Here we report three novel families, compound heterozygous for missense variants in HARS2 identified by next-generation sequencing, namely c.172A > G (p.Lys58Glu) and c.448C > T (p.Arg150Cys) identified in two sisters aged 13 and 16 years and their older brother, c.448C > T (p.Arg150Cys) and c.980G > A (p.Arg327Gln) identified in a seven year old girl, and finally c.137T > A (p.Leu46Gln) and c.259C > T (p.Arg87Cys) identified in a 32 year old woman. Clinically, all five individuals presented with early onset, rapidly progressive hearing impairment. Whereas the oldest female fulfilled the criteria of Perrault syndrome, the three younger females, aged 7, 13 and 16, all had apparently normal ovarian function, apart from irregular menstrual periods in the oldest female at age 16. The present report expands the list of HARS2 variants and helps gain further knowledge to the phenotype.
AB - Biallelic variants in HARS2 have been associated with Perrault syndrome, characterized by sensorineural hearing impairment and premature ovarian insufficiency. Here we report three novel families, compound heterozygous for missense variants in HARS2 identified by next-generation sequencing, namely c.172A > G (p.Lys58Glu) and c.448C > T (p.Arg150Cys) identified in two sisters aged 13 and 16 years and their older brother, c.448C > T (p.Arg150Cys) and c.980G > A (p.Arg327Gln) identified in a seven year old girl, and finally c.137T > A (p.Leu46Gln) and c.259C > T (p.Arg87Cys) identified in a 32 year old woman. Clinically, all five individuals presented with early onset, rapidly progressive hearing impairment. Whereas the oldest female fulfilled the criteria of Perrault syndrome, the three younger females, aged 7, 13 and 16, all had apparently normal ovarian function, apart from irregular menstrual periods in the oldest female at age 16. The present report expands the list of HARS2 variants and helps gain further knowledge to the phenotype.
KW - HARS2
KW - Next-generation sequencing
KW - Perrault syndrome
KW - Premature ovarian insufficiency
KW - Sensorineural hearing impairment
U2 - 10.1016/j.ejmg.2019.103733
DO - 10.1016/j.ejmg.2019.103733
M3 - Journal article
C2 - 31449985
AN - SCOPUS:85071657131
SN - 1769-7212
JO - European Journal of Medical Genetics
JF - European Journal of Medical Genetics
M1 - 103733
ER -