Skeletal dysplasia
Gene: DDRGK1
The rating of this gene has been updated to green following NHS Genomic Medicine Service approval.Created: 11 Oct 2023, 11:08 a.m. | Last Modified: 11 Oct 2023, 11:08 a.m.
Panel Version: 4.20
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Comment on gene classification: This gene should be rated GREEN as it has been associated with Spondyloepimetaphyseal dysplasia, Shohat type from seven unrelated cases from multiple ethnicities and supported by functional studies.
PMID:28263186 reported six individuals from three different families of Iraqi Jewish descent (three patients from family 1 and one individual each from families 2-4) identified with homozygous c.408+1G>A donor splice site loss-of-function mutation in DDRGK1 and presented with Shohat-type spondyloepimetaphyseal dysplasia (SEMD). It is a skeletal dysplasia that affects cartilage development.
PMID: 35670300 reported two unrelated cases of Moroccan descent identified with homozygous missense variant c.406G>A and presented with SEMD. PMID:36243336 reported an Omani female patient identified with the same homozygous variant as the Iraqi cases and was reported with SEMD.
In addition, studies on both zebrafish and mouse models confirms the physiological role of DDRGK1 in the development and maintenance of the growth plate cartilage and deficiency of DDRGK1 recapitulate the clinical phenotype of short stature and joint abnormalities observed in patients with Shohat type SEMD (PMID:28263186; PMID:35377455).
This gene has been associated with relevant phenotype in OMIM (MIM #602557), but not in Gene2Phenotype.
Sources: LiteratureCreated: 24 Feb 2023, 7:15 p.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Spondyloepimetaphyseal dysplasia, Shohat type, OMIM:602557
Publications
Tag Q1_23_promote_green was removed from gene: DDRGK1.
Source NHS GMS was added to DDRGK1. Source Expert Review Green was added to DDRGK1. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Gene: ddrgk1 has been classified as Amber List (Moderate Evidence).
Gene: ddrgk1 has been classified as Amber List (Moderate Evidence).
Tag Q1_23_promote_green tag was added to gene: DDRGK1.
gene: DDRGK1 was added gene: DDRGK1 was added to Skeletal dysplasia. Sources: Literature Mode of inheritance for gene: DDRGK1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DDRGK1 were set to 28263186; 35377455; 35670300; 36243336 Phenotypes for gene: DDRGK1 were set to Spondyloepimetaphyseal dysplasia, Shohat type, OMIM:602557 Review for gene: DDRGK1 was set to GREEN