21-44294480-C-T
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_000383.4(AIRE):c.1480C>T(p.Arg494Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000848 in 1,533,616 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R494H) has been classified as Likely benign.
Frequency
Consequence
NM_000383.4 missense
Scores
Clinical Significance
Conservation
Publications
- autoimmune polyendocrine syndrome type 1Inheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, PanelApp Australia, Ambry Genetics, Myriad Women’s Health, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- familial isolated hypoparathyroidism due to impaired PTH secretionInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000132 AC: 2AN: 151692Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.00000715 AC: 1AN: 139904 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000796 AC: 11AN: 1381810Hom.: 0 Cov.: 31 AF XY: 0.0000102 AC XY: 7AN XY: 682990 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000132 AC: 2AN: 151806Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74190 show subpopulations
ClinVar
Submissions by phenotype
Polyglandular autoimmune syndrome, type 1 Uncertain:2
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 494 of the AIRE protein (p.Arg494Cys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with AIRE-related conditions. ClinVar contains an entry for this variant (Variation ID: 528308). 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 AIRE protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at