rs386833675
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000383.4(AIRE):c.967_979delCTGTCCCCTCCGC(p.Leu323SerfsTer51) variant causes a frameshift change. The variant allele was found at a frequency of 0.00103 in 1,606,780 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_000383.4 frameshift
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000585 AC: 89AN: 152132Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000506 AC: 123AN: 242922Hom.: 0 AF XY: 0.000491 AC XY: 65AN XY: 132390
GnomAD4 exome AF: 0.00108 AC: 1570AN: 1454530Hom.: 3 AF XY: 0.00104 AC XY: 753AN XY: 723754
GnomAD4 genome AF: 0.000585 AC: 89AN: 152250Hom.: 0 Cov.: 33 AF XY: 0.000524 AC XY: 39AN XY: 74450
ClinVar
Submissions by phenotype
Polyglandular autoimmune syndrome, type 1 Pathogenic:16Other:1
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This sequence change creates a premature translational stop signal (p.Leu323Serfs*51) in the AIRE gene. This variant causes a frameshift starting with codon Leucine 323, changes this amino acid to Serine residue, and creates a premature Stop codon at position 51 of the new reading frame, denoted p.Leu323SerfsTer51. It is expected to result in an absent or disrupted protein product. This variant has been reported in numerous individuals and families affected with autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED) and is the most common variant found in affected individuals of British or Anglo-American ancestry (Heino, Maarit, et al, Pearce, Simon HS, et al). An experimental study has shown that this sequence change has a dominant negative effect on the gene regulation of tested AIRE-regulated genes (Oftedal, Bergithe E., et al). This variant has been reported to the ClinVar database as Pathogenic/ Likely pathogenic. The variant is reported with the allele frequency of 0.05032% in gnomAD Exome is novel (not in any individuals) in 1000 Genomes. For these reasons, this variant has been classified as pathogenic -
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NM_000383.3(AIRE):c.967_979del13(L323Sfs*51) is classified as pathogenic in the context of autoimmune polyglandular syndrome type 1. Sources cited for classification include the following: PMID 17220063, 12050215, 17118990, 9921903, 9837820, 21295522, 17118990 and 12050215. Classification of NM_000383.3(AIRE):c.967_979del13(L323Sfs*51) is based on the following criteria: The variant causes a premature termination codon that is expected to be targeted by nonsense-mediated mRNA decay and is reported in individuals with the relevant phenotype. Please note: this variant was assessed in the context of healthy population screening. -
Variant interpreted as Pathogenic and reported on 11-09-2020 by Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
This sequence change creates a premature translational stop signal (p.Leu323Serfs*51) in the AIRE gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in AIRE are known to be pathogenic (PMID: 11524731, 26141571). This variant is present in population databases (rs779937061, gnomAD 0.09%), and has an allele count higher than expected for a pathogenic variant. This premature translational stop signal has been observed in individual(s) with autosomal recessive autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED) and is the most common variant found in affected individuals of British or Anglo-American ancestry (PMID: 9837820, 11524731, 27588307). It has also been observed to segregate with disease in related individuals. This variant is also known as c.964del13, c.967_979del13, p.C322del13, or c.1094_1106del. ClinVar contains an entry for this variant (Variation ID: 3309). For these reasons, this variant has been classified as Pathogenic. -
The c.967_979del;p.(Leu323Serfs*51) is a null frameshift variant in the AIRE gene and predicts alteration of the nonsense-mediate decay - NMD is present in a relevant exon to the transcript -PVS1_strong. This sequence change has been observed in affected individual(s) and ClinVar contains an entry for this variant (ClinVar ID: 3309; PMID: 11524731; 9837820; 27588307) - PS4. The variant is present at low allele frequencies population databases (rs386833675 - gnomAD 0.0005850%; ABraOM no frequency - http://abraom.ib.usp.br/) - PM2_supporting. The p.(Leu323Serfs*51) was detected in trans with a pathogenic variant (PMID: 11524731; 9837820; 27588307) - PM3. In summary, the currently available evidence indicates that the variant is pathogenic. -
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The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.136%). Predicted Consequence/Location: Intron variant Damaging effect on gene or gene product predicted by in silico programs is uncertain [Splice AI: 0.10 (spliceogenicity >=0.2, non-spliceogenicity <0.1)]. The variant has been reported to be in trans with a pathogenic variant as either compound heterozygous or homozygous in at least 4 similarly affected unrelated individuals (PMID: 28459997, 30323018, 30847471). The variant has been reported to co-segregate with the disease in at least 3 similarly affected relatives/individuals in the same family or similarly affected unrelated family (PMID: 28459997). The variant has been reported at least twice as pathogenic with clinical assertions and evidence for the classification (ClinVar ID: VCV000445922 /PMID: 27029625 /3billion dataset). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline. -
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The p.Leu323SerfsX51 variant in AIRE is a well-established pathogenic variant, which represents the most common variant identified in Anglo-American autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) patients (Heino 2001 PMID: 11524731, Ferre 2016 PMID: 27588307). It has also been identified in 0.096% (121/125552) of European chromosomes by gnomAD (http://gnomad.broadinstitute.org). However, this frequency is low enough to be consistent with a recessive carrier frequency. This variant is predicted to cause a frameshift, which alters the protein’s amino acid sequence beginning at position 323 and leads to a premature termination codon 51 amino acids downstream. This alteration is then predicted to lead to a truncated or absent protein. Loss of function of the AIRE gene is an established disease mechanism in autosomal recessive APECED. Finally, the p.Leu323SerfsX51 has been reported as Pathogenic by multiple clinical labs in ClinVar (Variation ID 3309). In summary, this variant meets criteria to be classified as pathogenic for autosomal recessive APECED. ACMG/AMP Criteria applied: ACMG/AMP criteria applied: PVS1, PM3_VeryStrong. -
Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0103 - Dominant negative and loss of function are known mechanisms of disease in this gene and are associated with autoimmune polyendocrinopathy syndrome, type I, with or without reversible metaphyseal dysplasia (MIM#240300). While most variants associated with disease are loss of function, one missense variant has been reported to have a dominant negative effect (OMIM, PMID: 16114041). (I) 0108 - This gene is associated with both recessive and dominant disease. Although this disease is most commonly inherited in an autosomal recessive pattern, one family has been reported with autosomal dominant disease (OMIM). (I) 0201 - Variant is predicted to cause nonsense-mediated decay (NMD) and loss of protein (premature termination codon is located at least 54 nucleotides upstream of the final exon-exon junction). (SP) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD (v2) <0.01 for a recessive condition (138 heterozygotes, 0 homozygotes). (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant is commonly reported in individuals with autosomal recessive autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) syndrome (ClinVar, PMID: 27588307). (SP) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -
Variant summary: AIRE c.967_979del13 (p.Leu323SerfsX51) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory. The variant allele was found at a frequency of 0.00051 in 243022 control chromosomes. c.967_979del13 has been widely reported in the literature as a frequent mutation in multiple individuals affected with Autoimmune Polyglandular Syndrome Type 1 (example, Wang_1998, Dominguez_2006). These data indicate that the variant is very likely to be associated with disease. A mice model of this 13-bp deletion displaying a mild autoimmune phenotype characterized by a disturbance of medullary epithelial compartment, increased levels of activated T cells and autoantibodies against multiple organs has been reported (Hubert_2009). Seven clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -
not provided Pathogenic:8
Considered to be a founder variant in the Anglo-American population (Pearce et al., 1998; Heino et al., 2001); Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Published functional studies indicate the variant may have a minor dominant negative effect, which in heterozygotes could lead to atypical phenotypes with later onset and reduced penetrance (Oftedal et al., 2015); This variant is associated with the following publications: (PMID: 24948345, 19265170, 10677297, 27588307, 28769929, 28911151, 27219120, 11916620, 11207636, 19807739, 23620608, 9921903, 10720083, 17118990, 14557425, 26912174, 25707324, 9398840, 27253668, 28323927, 11298085, 31589614, 9837820, 26084028, 11524731) -
PP1_strong, PP4, PM3_very_strong, PVS1 -
AIRE: PVS1, PM3:Strong, PM2:Supporting -
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AIRE-related disorder Pathogenic:1
The AIRE c.967_979del13 variant is predicted to result in a frameshift and premature protein termination (p.Leu323Serfs*51). This variant has been reported in many unrelated individuals to be pathogenic for autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) (Finnish-German APECED Consortium. 1997. PubMed ID: 9398840). This variant is reported in 0.096% of alleles in individuals of European (non-Finnish) descent in gnomAD and is interpreted as pathogenic or likely pathogenic by many labs in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/3309). Frameshift variants in AIRE are expected to be pathogenic. This variant is interpreted as pathogenic for autosomal recessive APECED. -
Autoimmune polyglandular syndrome type 1, with reversible metaphyseal dysplasia Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at