10-125788993-C-T
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PP3_ModeratePP5_Very_Strong
The NM_000375.3(UROS):c.673G>A(p.Gly225Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000806 in 1,612,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).
Frequency
Consequence
NM_000375.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
UROS | NM_000375.3 | c.673G>A | p.Gly225Ser | missense_variant | Exon 10 of 10 | ENST00000368797.10 | NP_000366.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000657 AC: 10AN: 152204Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000365 AC: 9AN: 246374Hom.: 0 AF XY: 0.0000522 AC XY: 7AN XY: 134182
GnomAD4 exome AF: 0.0000822 AC: 120AN: 1460594Hom.: 0 Cov.: 30 AF XY: 0.0000853 AC XY: 62AN XY: 726572
GnomAD4 genome AF: 0.0000657 AC: 10AN: 152322Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74474
ClinVar
Submissions by phenotype
Cutaneous porphyria Pathogenic:2Other:1
Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with congenital erythropoietic porphyria (MIM#263700). (I) 0106 - This gene is associated with autosomal recessive disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from glycine to serine. (I) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD (v3) <0.01 for a recessive condition (10 heterozygotes, 0 homozygotes). (SP) 0501 - Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change. (SP) 0600 - Variant is located in the annotated HEM4 domain (DECIPHER). (I) 0705 - No comparable missense variants have previous evidence for pathogenicity. (I) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been observed as compound heterozygous in at least eight individuals with congenital erythropoietic porphyria (PMIDs: 38255745, 28334762, 16365260, 22816431, 30685241, 12060112). (SP) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -
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not provided Pathogenic:1
This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 225 of the UROS protein (p.Gly225Ser). This variant is present in population databases (rs121908020, gnomAD 0.006%). This missense change has been observed in individuals with congenital erythropoietic porphyria (PMID: 7860775, 16365260). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 3766). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt UROS protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects UROS function (PMID: 7860775, 19099412). For these reasons, this variant has been classified as Pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at