NM_001379110.1:c.1081-8C>G

Variant names:

• chrX-136016637-C-G
• rs1060504684
• NM_001379110.1:c.1081-8C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001379110.1(SLC9A6):​c.1081-8C>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 22)
• Consequence: SLC9A6 NM_001379110.1 splice_region, intron
• Scores: Splicing: ADA: 0.0001906
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.238
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• Christianson syndrome

  Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet, ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001379110.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC9A6	NM_001379110.1	MANE Select	c.1081-8C>G		splice_region intron	N/A	NP_001366039.1
	SLC9A6	NM_001438742.1		c.1237-8C>G		splice_region intron	N/A	NP_001425671.1
	SLC9A6	NM_001042537.2		c.1237-8C>G		splice_region intron	N/A	NP_001036002.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC9A6	ENST00000630721.3	TSL:4 MANE Select	c.1081-8C>G		splice_region intron	N/A	ENSP00000487486.2
	SLC9A6	ENST00000370695.8	TSL:1	c.1237-8C>G		splice_region intron	N/A	ENSP00000359729.4
	SLC9A6	ENST00000370698.7	TSL:1	c.1141-8C>G		splice_region intron	N/A	ENSP00000359732.3

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD2 exomes AF: 0.00000549 AC: 1 AN: 182155 AF XY: 0.0000150

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000123

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 17

GnomAD4 genome Cov.: 22

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.28
DANN	Benign	0.54
PhyloP100		-0.24
Mutation Taster		=43/42	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00019
dbscSNV1_RF	Benign	0.012
SpliceAI score (max)		0.34		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.34		Position offset: 8

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1060504684; hg19: chrX-135098796;