Genetic Variant SLC9A6:c.1768-6A>G (chrX-136044446-A-G) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS1

This summary comes from the ClinGen Evidence Repository: The allele frequency of the c.1738-6A>G variant in SLC9A6 (NM_006359.2) is 0.02% in the Other sub population in gnomAD, which is high enough to meet the BS1 criteria based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BS1). Splice prediction analysis, using multiple computational tools does not suggest an impact to splicing (BP4). In summary, the c.1738-6A>G variant in SLC9A6 is classified as Likely Benign based on the ACMG/AMP criteria (BS1, BP4). LINK:https://erepo.genome.network/evrepo/ui/classification/CA644626142/MONDO:0010278/033

Frequency

Genomes: not found (cov: 22)

Exomes 𝑓: 0.0000046 ( 0 hom. 3 hem. )

Consequence

SLC9A6
NM_001379110.1 splice_region, intron

Scores

Splicing: ADA: 0.00004230

Clinical Significance

Likely benign reviewed by expert panel U:1B:2

Conservation

PhyloP100: -0.544

Variant links:

Genes affected

SLC9A6 (HGNC:11079): (solute carrier family 9 member A6) This gene encodes a sodium-hydrogen exchanger that is amember of the solute carrier family 9. The encoded protein localizes to early and recycling endosomes and may be involved in regulating endosomal pH and volume. Defects in this gene are associated with X-linked syndromic cognitive disability, Christianson type. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Apr 2010]

SLC9A6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

BS1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC9A6	NM_001379110.1 link	c.1768-6A>G		splice_region_variant, intron_variant	Intron 17 of 17	ENST00000630721.3	NP_001366039.1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC9A6	ENST00000630721.3 link	c.1768-6A>G	splice_region_variant, intron_variant	Intron 17 of 17	4	NM_001379110.1	ENSP00000487486.2	A0A0D9SGH0
SLC9A6	ENST00000370695.8 link	c.1834-6A>G	splice_region_variant, intron_variant	Intron 15 of 15	1		ENSP00000359729.4	Q92581-2
SLC9A6	ENST00000370698.7 link	c.1738-6A>G	splice_region_variant, intron_variant	Intron 15 of 15	1		ENSP00000359732.3	Q92581-1
SLC9A6	ENST00000370701.6 link	c.1678-6A>G	splice_region_variant, intron_variant	Intron 16 of 16	1		ENSP00000359735.1	Q92581-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000110

AC:

AN:

181659

Hom.:

AF XY:

0.00

AC XY:

AN XY:

66961

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000365

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:

0.000222

GnomAD4 exome

AF:

0.00000459

AC:

AN:

1088543

Hom.:

Cov.:

AF XY:

0.00000846

AC XY:

AN XY:

354419

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000569

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000557

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:2

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Christianson syndrome

Benign:2

Oct 13, 2023

ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel

Significance: Likely benign

Review Status: reviewed by expert panel

Collection Method: curation

The allele frequency of the c.1738-6A>G variant in SLC9A6 (NM_006359.2) is 0.02% in the Other sub population in gnomAD, which is high enough to meet the BS1 criteria based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BS1). Splice prediction analysis, using multiple computational tools does not suggest an impact to splicing (BP4). In summary, the c.1738-6A>G variant in SLC9A6 is classified as Likely Benign based on the ACMG/AMP criteria (BS1, BP4). -

Sep 21, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Uncertain:1

Sep 04, 2015

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

1.8

DANN

Benign

0.63

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000042

dbscSNV1_RF

Benign

0.0

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

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