X-46607082-G-A

Position:

chrX-46607082-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001257291.2(SLC9A7):c.2051C>T(p.Thr684Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000062 in 1,209,496 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 28 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000054 ( 0 hom., 2 hem., cov: 22)

Exomes 𝑓: 0.000063 ( 0 hom. 26 hem. )

Consequence

SLC9A7
NM_001257291.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.14

Variant links:

Genes affected

SLC9A7 (HGNC:17123): (solute carrier family 9 member A7) This gene encodes a sodium and potassium/ proton antiporter that is a member of the solute carrier family 9 protein family. The encoded protein is primarily localized to the trans-Golgi network and is involved in maintaining pH homeostasis in organelles along the secretory and endocytic pathways. This protein may enhance cell growth of certain breast tumors. This gene is part of a gene cluster on chromosome Xp11.23. A pseudogene of this gene is found on chromosome 12. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2012]

SLC9A7 links:

SLC9A7 (HGNC:):

SLC9A7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09083232).

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC9A7	NM_001257291.2 linkuse as main transcript	c.2051C>T	p.Thr684Met	missense_variant	17/17	ENST00000616978.5	NP_001244220.1	A0A087WXD1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC9A7	ENST00000616978.5 linkuse as main transcript	c.2051C>T	p.Thr684Met	missense_variant	17/17	1	NM_001257291.2	ENSP00000480916.1		A0A087WXD1

Frequencies

GnomAD3 genomes

AF:

0.0000538

AC:

AN:

111470

Hom.:

Cov.:

AF XY:

0.0000594

AC XY:

AN XY:

33648

show subpopulations

Gnomad AFR

AF:

0.0000327

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:

0.0000943

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000438

AC:

AN:

182776

Hom.:

AF XY:

0.0000297

AC XY:

AN XY:

67280

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000981

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000628

AC:

AN:

1098026

Hom.:

Cov.:

AF XY:

0.0000715

AC XY:

AN XY:

363384

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000185

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000748

Gnomad4 OTH exome

AF:

0.000108

GnomAD4 genome

AF:

0.0000538

AC:

AN:

111470

Hom.:

Cov.:

AF XY:

0.0000594

AC XY:

AN XY:

33648

show subpopulations

Gnomad4 AFR

AF:

0.0000327

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:

0.0000943

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000297

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 09, 2022

This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 684 of the SLC9A7 protein (p.Thr684Met). This variant is present in population databases (rs146808441, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with SLC9A7-related conditions. ClinVar contains an entry for this variant (Variation ID: 1508328). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.86

CADD

Benign

3.4

DANN

Benign

0.95

DEOGEN2

Benign

0.014

T;T

FATHMM_MKL

Benign

0.61

LIST_S2

Benign

0.62

T;T

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.091

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

.;M

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.34

.;N

REVEL

Benign

0.036

Sift

Benign

0.27

.;T

Sift4G

Benign

0.23

T;T

Polyphen

0.12

.;B

Vest4

0.097

MVP

0.16

MPC

0.65

ClinPred

0.031

GERP RS

0.84

Varity_R

0.027

gMVP

0.29

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over