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GeneBe

20-49884040-G-A

Variant summary

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

The NM_015266.3(SLC9A8):c.1465G>A(p.Val489Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,461,548 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

SLC9A8
NM_015266.3 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.15
Variant links:
Genes affected
SLC9A8 (HGNC:20728): (solute carrier family 9 member A8) Sodium-hydrogen exchangers (NHEs), such as SLC9A8, are integral transmembrane proteins that exchange extracellular Na+ for intracellular H+. NHEs have multiple functions, including intracellular pH homeostasis, cell volume regulation, and electroneutral NaCl absorption in epithelia (Xu et al., 2008 [PubMed 18209477]).[supplied by OMIM, Apr 2009]

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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=0.13958955).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC9A8NM_015266.3 linkuse as main transcriptc.1465G>A p.Val489Ile missense_variant 14/16 ENST00000361573.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC9A8ENST00000361573.3 linkuse as main transcriptc.1465G>A p.Val489Ile missense_variant 14/161 NM_015266.3 P1Q9Y2E8-1
SLC9A8ENST00000417961.5 linkuse as main transcriptc.1513G>A p.Val505Ile missense_variant 14/162 Q9Y2E8-2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
249612
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
134936
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1461548
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727040
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000151
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsJan 03, 2024The c.1465G>A (p.V489I) alteration is located in exon 14 (coding exon 14) of the SLC9A8 gene. This alteration results from a G to A substitution at nucleotide position 1465, causing the valine (V) at amino acid position 489 to be replaced by an isoleucine (I). 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
0.059
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.50
Cadd
Benign
20
Dann
Benign
0.94
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.70
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.080
N;N
REVEL
Benign
0.037
Sift
Benign
0.52
T;T
Sift4G
Benign
0.77
T;T
Polyphen
0.0010
.;B
Vest4
0.26
MutPred
0.19
.;Loss of MoRF binding (P = 0.1297);
MVP
0.73
MPC
0.31
ClinPred
0.10
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.022
gMVP
0.35

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: rs755746337; hg19: chr20-48500577; COSMIC: COSV64289645; COSMIC: COSV64289645; API