Variant 9-21227622-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_021268.2(IFNA17):c.552A>G(p.Ile184Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0001 in 1,612,232 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 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. I184R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 4 hom. )

Consequence

IFNA17
NM_021268.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.485

Variant links:

Genes affected

IFNA17 (HGNC:5422): (interferon alpha 17) Predicted to enable cytokine activity and type I interferon receptor binding activity. Predicted to be involved in several processes, including B cell activation; lymphocyte activation involved in immune response; and positive regulation of peptidyl-serine phosphorylation of STAT protein. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Implicated in Crimean-Congo hemorrhagic fever and sarcoidosis. [provided by Alliance of Genome Resources, Apr 2022]

IFNA17 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012475669).

BS2

High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IFNA17	NM_021268.2 linkuse as main transcript	c.552A>G	p.Ile184Met	missense_variant	1/1	ENST00000413767.2	NP_067091.1	P01571A0A7R8C355

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IFNA17	ENST00000413767.2 linkuse as main transcript	c.552A>G	p.Ile184Met	missense_variant	1/1	6	NM_021268.2	ENSP00000411940.2		P01571

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00270

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

GnomAD3 exomes

AF:

0.0000942

AC:

AN:

244226

Hom.:

AF XY:

0.000113

AC XY:

AN XY:

132532

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00134

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000101

AC:

148

AN:

1459990

Hom.:

Cov.:

AF XY:

0.0000922

AC XY:

AN XY:

726450

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00368

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74418

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00271

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000982

ExAC

AF:

0.0000742

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 18, 2023

The c.552A>G (p.I184M) alteration is located in exon 1 (coding exon 1) of the IFNA17 gene. This alteration results from a A to G substitution at nucleotide position 552, causing the isoleucine (I) at amino acid position 184 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.62

BayesDel_noAF

Benign

-0.67

CADD

Benign

9.3

DANN

Benign

0.74

DEOGEN2

Benign

0.026

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.014

LIST_S2

Benign

0.70

M_CAP

Benign

0.0028

MetaRNN

Benign

0.012

MetaSVM

Benign

-0.94

MutationAssessor

Benign

-0.34

PrimateAI

Benign

0.43

PROVEAN

Benign

1.4

REVEL

Benign

0.016

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0050

Polyphen

0.14

Vest4

0.088

MutPred

0.40

Loss of methylation at K183 (P = 0.0283);

MVP

0.12

MPC

0.015

ClinPred

0.031

GERP RS

-3.6

Varity_R

0.12

gMVP

0.044

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over