15-34230213-A-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_001365088.1(SLC12A6):c.*3668T>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0222 in 171,338 control chromosomes in the GnomAD database, including 155 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.025 (150 hom., cov: 33)
  • Exomes 𝑓: 0.0036 (5 hom.)
• Consequence: SLC12A6 NM_001365088.1 3_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 2.36

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 Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.59).
• BP6: Variant 15-34230213-A-T is Benign according to our data. Variant chr15-34230213-A-T is described in ClinVar as [Benign]. Clinvar id is 315545.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0837 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC12A6	NM_001365088.1	c.*3668T>A		3_prime_UTR_variant	26/26	ENST00000354181.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC12A6	ENST00000354181.8	c.*3668T>A		3_prime_UTR_variant	26/26	1	NM_001365088.1	A1
SLC12A6	ENST00000290209.9	c.*3668T>A		3_prime_UTR_variant	25/25	1		P3
SLC12A6	ENST00000676379.1	c.*2287T>A		3_prime_UTR_variant	26/26

Frequencies

GnomAD3 genomes AF: 0.0245 AC: 3735 AN: 152176 Hom.: 150 Cov.: 33

Gnomad AFR AF: 0.0862

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00701

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000323

Gnomad OTH AF: 0.0167

GnomAD4 exome AF: 0.00357 AC: 68 AN: 19044 Hom.: 5 Cov.: 0 AF XY: 0.00362 AC XY: 36 AN XY: 9954

Gnomad4 AFR exome AF: 0.0896

Gnomad4 AMR exome AF: 0.00648

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000233

Gnomad4 OTH exome AF: 0.00772

GnomAD4 genome AF: 0.0246 AC: 3740 AN: 152294 Hom.: 150 Cov.: 33 AF XY: 0.0229 AC XY: 1707 AN XY: 74476

Gnomad4 AFR AF: 0.0860

Gnomad4 AMR AF: 0.00700

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000323

Gnomad4 OTH AF: 0.0166

Alfa AF: 0.0214 Hom.: 8

Bravo AF: 0.0283

Asia WGS AF: 0.00375 AC: 13 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Agenesis of the corpus callosum with peripheral neuropathy Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.59
Cadd	Benign	13
Dann	Benign	0.77

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

Other links and lift over

dbSNP: rs11544435; hg19: chr15-34522414;