9-21201865-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_021057.2(IFNA7):​c.301G>A​(p.Glu101Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,032 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

IFNA7
NM_021057.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.49
Variant links:
Genes affected
IFNA7 (HGNC:5428): (interferon alpha 7) 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. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06929356).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IFNA7NM_021057.2 linkuse as main transcriptc.301G>A p.Glu101Lys missense_variant 1/1 ENST00000239347.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IFNA7ENST00000239347.3 linkuse as main transcriptc.301G>A p.Glu101Lys missense_variant 1/1 NM_021057.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000264
AC:
4
AN:
151320
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000976
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
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250574
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135478
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.00000137
AC:
2
AN:
1461712
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727166
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000264
AC:
4
AN:
151320
Hom.:
0
Cov.:
31
AF XY:
0.0000406
AC XY:
3
AN XY:
73840
show subpopulations
Gnomad4 AFR
AF:
0.0000976
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsJul 28, 2021The c.301G>A (p.E101K) alteration is located in exon 1 (coding exon 1) of the IFNA7 gene. This alteration results from a G to A substitution at nucleotide position 301, causing the glutamic acid (E) at amino acid position 101 to be replaced by a lysine (K). 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
0.11
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.73
CADD
Benign
6.0
DANN
Benign
0.95
DEOGEN2
Benign
0.028
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.0042
N
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.0054
T
MetaRNN
Benign
0.069
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.6
N
REVEL
Benign
0.056
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.032
D
Polyphen
0.28
B
Vest4
0.15
MVP
0.11
MPC
0.040
ClinPred
0.28
T
GERP RS
-6.8
Varity_R
0.25
gMVP
0.068

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

LitVar

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

Other links and lift over

dbSNP: rs767006459; hg19: chr9-21201864; COSMIC: COSV105001892; COSMIC: COSV105001892; API