15-34236745-CGGAGCATCTG-C

Position:

• chr15-34236745-CGGAGCATCTG-C

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001365088.1(SLC12A6):​c.2995_3004del​(p.Gln999GlyfsTer17) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC12A6 NM_001365088.1 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2 U:1
• Conservation: PhyloP100: 10.0

Genes affected

SLC12A6 (HGNC:10914): (solute carrier family 12 member 6) This gene is a member of the K-Cl cotransporter (KCC) family. K-Cl cotransporters are integral membrane proteins that lower intracellular chloride concentrations below the electrochemical equilibrium potential. The proteins encoded by this gene are activated by cell swelling induced by hypotonic conditions. Alternate splicing results in multiple transcript variants encoding different isoforms. Mutations in this gene are associated with agenesis of the corpus callosum with peripheral neuropathy. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Pathogenic. Variant got 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 15-34236745-CGGAGCATCTG-C is Pathogenic according to our data. Variant chr15-34236745-CGGAGCATCTG-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 5332.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr15-34236745-CGGAGCATCTG-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC12A6	NM_001365088.1	c.2995_3004del	p.Gln999GlyfsTer17	frameshift_variant	23/26	ENST00000354181.8	NP_001352017.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC12A6	ENST00000354181.8	c.2995_3004del	p.Gln999GlyfsTer17	frameshift_variant	23/26	1	NM_001365088.1	ENSP00000346112	A1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Agenesis of the corpus callosum with peripheral neuropathy Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Jul 15, 2021	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Sep 25, 2007	- -

Charcot-Marie-Tooth disease Uncertain:1

Uncertain significance, no assertion criteria provided

literature only

Inherited Neuropathy Consortium

-

- -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs606231158; hg19: chr15-34528946;