Monogenic hearing loss
Gene: DNAJC3
Comment on list classification: There are seven unrelated families with DNAJC3 biallelic variants and presenting with sensorineural hearing loss. Hence, this gene can be promoted to Green at the next GMS review.Created: 28 Jul 2023, 3:25 p.m. | Last Modified: 28 Jul 2023, 3:25 p.m.
Panel Version: 4.12
PMID:25466870 - Five individuals from two different families were identified with homozygous DNAJC3 variants (family 1: c.580C>T (p.Arg194Ter); family 2: 72kb del (exons 6-12)), of which all three individuals from family 1 and one of two individuals from family 2 were reported with sensorineural hearing loss among several clinical manifestations.
PMID:28940199 - Cousin of family 1 from PMID:2546687 with the same variant and presented with sensorineural hearing loss.
PMID:32738013 - Two unrelated cases with homozygous splice site variants (case 1: c.393+2T>G; case 2: c.393+2T>C) in DNAJC3 and were reported with sensorineural hearing loss.
PMID:33486469 - Two unrelated patients identified with compound heterozygous (patient 1: p.Met1Val & p.Arg346Ter) or homozygous (p.Arg393Ter) variants, and both had sensorineural hearing loss.
PMID:34654017 - Two siblings identified with homozygous DNAJC3 variant (c.367_1370delAGAA; p.Lys456SerfsTer85) presented with sensorineural hearing loss.
Sources: LiteratureCreated: 28 Jul 2023, 3:22 p.m. | Last Modified: 28 Jul 2023, 3:24 p.m.
Panel Version: 4.11
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Ataxia, combined cerebellar and peripheral, with hearing loss and diabetes mellitus, OMIM:616192
Publications
Gene: dnajc3 has been classified as Amber List (Moderate Evidence).
Tag Q3_23_promote_green tag was added to gene: DNAJC3.
gene: DNAJC3 was added gene: DNAJC3 was added to Monogenic hearing loss. Sources: Literature Mode of inheritance for gene: DNAJC3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNAJC3 were set to 25466870; 28940199; 32738013; 33486469; 34654017 Phenotypes for gene: DNAJC3 were set to Ataxia, combined cerebellar and peripheral, with hearing loss and diabetes mellitus, OMIM:616192 Review for gene: DNAJC3 was set to GREEN