21-44286650-G-T

Variant names:

• chr21-44286650-G-T
• rs146810389
• NM_000383.4:c.226G>T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1 PM2 PP3_Moderate

The NM_000383.4(AIRE):​c.226G>T​(p.Asp76Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D76N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: AIRE NM_000383.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.79
• Publications: 0 publications found

Genes affected

AIRE (HGNC:360): (autoimmune regulator) This gene encodes a transcriptional regulator that forms nuclear bodies and interacts with the transcriptional coactivator CREB binding protein. The encoded protein plays an important role in immunity by regulating the expression of autoantigens and negative selection of autoreactive T-cells in the thymus. Mutations in this gene cause the rare autosomal-recessive systemic autoimmune disease termed autoimmune polyendocrinopathy with candidiasis and ectodermal dystrophy (APECED). [provided by RefSeq, Jun 2012]

AIRE Gene-Disease associations (from GenCC):

• autoimmune polyendocrine syndrome type 1

  Inheritance: 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 secretion

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_000383.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.854

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AIRE	NM_000383.4	c.226G>T	p.Asp76Tyr	missense_variant	Exon 2 of 14	ENST00000291582.6	NP_000374.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AIRE	ENST00000291582.6	c.226G>T	p.Asp76Tyr	missense_variant	Exon 2 of 14	1	NM_000383.4	ENSP00000291582.5
AIRE	ENST00000527919.5	n.387G>T		non_coding_transcript_exon_variant	Exon 2 of 14	2
AIRE	ENST00000530812.5	n.395G>T		non_coding_transcript_exon_variant	Exon 2 of 12	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	-0.010
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.94	D
Eigen	Uncertain	0.47
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.76	T
M_CAP	Uncertain	0.16	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Uncertain	0.78	D
MutationAssessor	Benign	1.9	L
PhyloP100		2.8
PrimateAI	Uncertain	0.62	T
PROVEAN	Uncertain	-4.1	D
REVEL	Pathogenic	0.70
Sift	Benign	0.046	D
Sift4G	Uncertain	0.042	D
Polyphen		1.0	D
Vest4		0.63
MutPred		0.66		Gain of MoRF binding (P = 0.1184);
MVP		1.0
MPC		0.61
ClinPred		0.96	D
GERP RS		3.7
Varity_R		0.35
gMVP		0.71
Mutation Taster		=72/28	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs146810389; hg19: chr21-45706533;