chr9-27524592-G-C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_020124.3(IFNK):​c.256G>C​(p.Ala86Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,856 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

IFNK
NM_020124.3 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.198

Publications

1 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]
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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.961

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
IFNKNM_020124.3 linkc.256G>C p.Ala86Pro missense_variant Exon 1 of 2 ENST00000276943.3 NP_064509.2 Q9P0W0
MOB3BNM_024761.5 linkc.-199+4963C>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
IFNKENST00000276943.3 linkc.256G>C p.Ala86Pro missense_variant Exon 1 of 2 1 NM_020124.3 ENSP00000276943.2 Q9P0W0
MOB3BENST00000262244.6 linkc.-199+4963C>G intron_variant Intron 1 of 3 1 NM_024761.5 ENSP00000262244.5 Q86TA1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251426
AF XY:
0.00000736
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461856
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727222
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111980
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.408
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
31
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Mar 28, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.256G>C (p.A86P) alteration is located in exon 1 (coding exon 1) of the IFNK gene. This alteration results from a G to C substitution at nucleotide position 256, causing the alanine (A) at amino acid position 86 to be replaced by a proline (P). 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
Uncertain
0.50
BayesDel_addAF
Benign
0.0041
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T
Eigen
Benign
-0.0094
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.49
T
M_CAP
Benign
0.016
T
MetaRNN
Pathogenic
0.96
D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.8
M
PhyloP100
0.20
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-3.1
D
REVEL
Benign
0.21
Sift
Uncertain
0.022
D
Sift4G
Uncertain
0.059
T
Polyphen
1.0
D
Vest4
0.68
MutPred
0.85
Gain of disorder (P = 0.0512);
MVP
0.52
MPC
0.033
ClinPred
0.59
D
GERP RS
3.3
PromoterAI
-0.046
Neutral
Varity_R
0.88
gMVP
0.59
Mutation Taster
=92/8
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs113363499; hg19: chr9-27524590; API