20-63241501-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_152864.4(NKAIN4):​c.623C>T​(p.Ala208Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000284 in 1,550,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

NKAIN4
NM_152864.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.840
Variant links:
Genes affected
NKAIN4 (HGNC:16191): (sodium/potassium transporting ATPase interacting 4) NKAIN4 is a member of a family of mammalian proteins (see NKAIN1; MIM 612871) with similarity to Drosophila Nkain and interacts with the beta subunit of Na,K-ATPase (ATP1B1; MIM 182330) (Gorokhova et al., 2007 [PubMed 17606467]).[supplied by OMIM, Jun 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.055345327).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NKAIN4NM_152864.4 linkuse as main transcriptc.623C>T p.Ala208Val missense_variant 7/7 ENST00000370316.8 NP_690603.3 Q8IVV8B3KWY5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NKAIN4ENST00000370316.8 linkuse as main transcriptc.623C>T p.Ala208Val missense_variant 7/71 NM_152864.4 ENSP00000359340.3 Q8IVV8

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152004
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.0000129
AC:
2
AN:
155128
Hom.:
0
AF XY:
0.0000122
AC XY:
1
AN XY:
81728
show subpopulations
Gnomad AFR exome
AF:
0.000114
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000439
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000293
AC:
41
AN:
1398244
Hom.:
0
Cov.:
30
AF XY:
0.0000189
AC XY:
13
AN XY:
689634
show subpopulations
Gnomad4 AFR exome
AF:
0.0000633
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000397
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000252
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000297
Gnomad4 OTH exome
AF:
0.0000690
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152004
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.0000725
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
ExAC
AF:
0.0000122
AC:
1

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 GeneticsMar 02, 2023The c.623C>T (p.A208V) alteration is located in exon 7 (coding exon 7) of the NKAIN4 gene. This alteration results from a C to T substitution at nucleotide position 623, causing the alanine (A) at amino acid position 208 to be replaced by a valine (V). 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
-0.25
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
13
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0010
T;.
Eigen
Benign
-0.59
Eigen_PC
Benign
-0.72
FATHMM_MKL
Benign
0.15
N
LIST_S2
Benign
0.60
T;T
M_CAP
Benign
0.0033
T
MetaRNN
Benign
0.055
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L;.
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.30
N;N
REVEL
Benign
0.023
Sift
Uncertain
0.011
D;D
Sift4G
Uncertain
0.015
D;D
Polyphen
0.49
P;.
Vest4
0.058
MutPred
0.35
Gain of stability (P = 0.0265);.;
MVP
0.076
MPC
0.012
ClinPred
0.056
T
GERP RS
2.3
Varity_R
0.042
gMVP
0.048

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs750109793; hg19: chr20-61872853; API