Genetic Variant IFNK:p.Met7Thr (chr9-27524356-T-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_020124.3(IFNK):c.20T>C(p.Met7Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000416 in 1,612,386 control chromosomes in the GnomAD database, with no homozygous occurrence. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

IFNK
NM_020124.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.45

Publications

3 publications found

Variant links:

Genes affected

IFNK (HGNC:21714): (interferon kappa) This gene encodes a member of the type I interferon family. Type I interferons are a group of related glycoproteins that play an important role in host defenses against viral infections. This protein is expressed in keratinocytes and the gene is found on chromosome 9, adjacent to the type I interferon cluster. [provided by RefSeq, Jul 2008]

IFNK links:

MOB3B (HGNC:23825): (MOB kinase activator 3B) The protein encoded by this gene shares similarity with the yeast Mob1 protein. Yeast Mob1 binds Mps1p, a protein kinase essential for spindle pole body duplication and mitotic checkpoint regulation. This gene is located on the opposite strand as the interferon kappa precursor (IFNK) gene. [provided by RefSeq, Jul 2008]

MOB3B links:

Genome browser will be placed here

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
IFNK	NM_020124.3 link	c.20T>C	p.Met7Thr	missense_variant	Exon 1 of 2	ENST00000276943.3	NP_064509.2	Q9P0W0
MOB3B	NM_024761.5 link	c.-199+5199A>G		intron_variant	Intron 1 of 3	ENST00000262244.6	NP_079037.3	Q86TA1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IFNK	ENST00000276943.3 link	c.20T>C	p.Met7Thr	missense_variant	Exon 1 of 2	1	NM_020124.3	ENSP00000276943.2		Q9P0W0
MOB3B	ENST00000262244.6 link	c.-199+5199A>G		intron_variant	Intron 1 of 3	1	NM_024761.5	ENSP00000262244.5		Q86TA1

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

151780

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000736

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000599

AC:

AN:

250250

AF XY:

0.0000740

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000871

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000706

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000418

AC:

AN:

1460606

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

726422

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33414

American (AMR)

AF:

0.0000672

AC:

AN:

44612

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26074

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000465

AC:

AN:

86070

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.000867

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000405

AC:

AN:

1111272

Other (OTH)

AF:

0.0000663

AC:

AN:

60328

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000395

AC:

AN:

151780

Hom.:

Cov.:

AF XY:

0.0000405

AC XY:

AN XY:

74158

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41238

American (AMR)

AF:

0.0000655

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4800

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000736

AC:

AN:

67924

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 20, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.20T>C (p.M7T) alteration is located in exon 1 (coding exon 1) of the IFNK gene. This alteration results from a T to C substitution at nucleotide position 20, causing the methionine (M) at amino acid position 7 to be replaced by a threonine (T). 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

0.12

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.49

CADD

Benign

(source)

DANN

Benign

0.78

DEOGEN2

Benign

0.15

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.24

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.38

M_CAP

Benign

0.017

MetaRNN

Uncertain

0.62

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.7

PhyloP100

1.5

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.7

REVEL

Benign

0.20

Sift

Benign

0.052

Sift4G

Benign

0.19

Polyphen

0.42

Vest4

0.20

MutPred

0.85

Gain of catalytic residue at M7 (P = 0.0468);

MVP

0.46

MPC

0.011

ClinPred

0.067

GERP RS

4.2

PromoterAI

0.026

Neutral

(source)

Varity_R

0.24

gMVP

0.52

Mutation Taster

=87/13

polymorphism

(source)

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

Publications

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chr9-27524356-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over