21-44286069-C-A

Variant names:

• chr21-44286069-C-A
• rs371796437
• NM_000383.4:c.63C>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Moderate BP6_Moderate BP7

The NM_000383.4(AIRE):​c.63C>A​(p.Ala21Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000216 in 1,391,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. A21A) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000022 (0 hom.)
• Consequence: AIRE NM_000383.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -7.30
• 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, Myriad Women’s Health, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics, Genomics England PanelApp
• familial isolated hypoparathyroidism due to impaired PTH secretion

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.37).
• BP6: Variant 21-44286069-C-A is Benign according to our data. Variant chr21-44286069-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1528053.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-7.3 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000383.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AIRE	NM_000383.4	MANE Select	c.63C>A	p.Ala21Ala	synonymous	Exon 1 of 14	NP_000374.1	O43918-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AIRE	ENST00000291582.6	TSL:1 MANE Select	c.63C>A	p.Ala21Ala	synonymous	Exon 1 of 14	ENSP00000291582.5	O43918-1
	AIRE	ENST00000966178.1		c.63C>A	p.Ala21Ala	synonymous	Exon 1 of 14	ENSP00000636237.1
	AIRE	ENST00000527919.5	TSL:2	n.224C>A		non_coding_transcript_exon	Exon 1 of 14

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000216 AC: 3 AN: 1391046 Hom.: 0 Cov.: 30 AF XY: 0.00000146 AC XY: 1 AN XY: 686382

African (AFR) AF: 0.00 AC: 0 AN: 31544

American (AMR) AF: 0.00 AC: 0 AN: 35662

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25118

East Asian (EAS) AF: 0.00 AC: 0 AN: 35690

South Asian (SAS) AF: 0.00 AC: 0 AN: 79162

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 42334

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5504

European-Non Finnish (NFE) AF: 0.00000278 AC: 3 AN: 1078176

Other (OTH) AF: 0.00 AC: 0 AN: 57856

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Polyglandular autoimmune syndrome, type 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.37
CADD	Benign	0.47
DANN	Benign	0.95
PhyloP100		-7.3
PromoterAI		0.034	Neutral

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: rs371796437; hg19: chr21-45705952;