Genetic Variant IFNG:c.115-4_115-3dupTT (chr12-68158261-T-TAA) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_000619.3(IFNG):c.115-4_115-3dupTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 0)

Exomes 𝑓: 0.000031 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

IFNG
NM_000619.3 splice_region, intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.416

Publications

9 publications found

Variant links:

Genes affected

IFNG (HGNC:5438): (interferon gamma) This gene encodes a soluble cytokine that is a member of the type II interferon class. The encoded protein is secreted by cells of both the innate and adaptive immune systems. The active protein is a homodimer that binds to the interferon gamma receptor which triggers a cellular response to viral and microbial infections. Mutations in this gene are associated with an increased susceptibility to viral, bacterial and parasitic infections and to several autoimmune diseases. [provided by RefSeq, Dec 2015]

IFNG links:

IFNG-AS1 (HGNC:43910): (IFNG antisense RNA 1)

IFNG-AS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IFNG	NM_000619.3 link	c.115-4_115-3dupTT		splice_region_variant, intron_variant	Intron 1 of 3	ENST00000229135.4	NP_000610.2	P01579A0A7R8GUN6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IFNG	ENST00000229135.4 link	c.115-3_115-2insTT		splice_region_variant, intron_variant	Intron 1 of 3	1	NM_000619.3	ENSP00000229135.3		P01579
IFNG-AS1	ENST00000536914.1 link	n.337-76268_337-76267insAA		intron_variant	Intron 5 of 5	5

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

147322

Hom.:

Cov.:

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000142

AC:

AN:

140762

AF XY:

0.0000129

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000921

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000147

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000315

AC:

AN:

1207724

Hom.:

Cov.:

AF XY:

0.0000233

AC XY:

AN XY:

601812

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

24578

American (AMR)

AF:

0.0000356

AC:

AN:

28074

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20924

East Asian (EAS)

AF:

0.0000555

AC:

AN:

36040

South Asian (SAS)

AF:

0.0000155

AC:

AN:

64318

European-Finnish (FIN)

AF:

0.00

AC:

AN:

43904

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4704

European-Non Finnish (NFE)

AF:

0.0000353

AC:

AN:

935210

Other (OTH)

AF:

0.0000200

AC:

AN:

49972

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.264

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

147322

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

71666

African (AFR)

AF:

0.00

AC:

AN:

40100

American (AMR)

AF:

0.00

AC:

AN:

14826

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3424

East Asian (EAS)

AF:

0.00

AC:

AN:

5066

South Asian (SAS)

AF:

0.00

AC:

AN:

4702

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

308

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

66632

Other (OTH)

AF:

0.00

AC:

AN:

2022

Alfa

AF:

0.00

Hom.:

1361

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.42

Splicing

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

Publications

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12-68158261-TAAAAAAAA-TAAAAAAAAAA

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over