16-56869780-G-T

Variant names:

• chr16-56869780-G-T
• NM_001126108.2:c.557G>T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001126108.2(SLC12A3):​c.557G>T​(p.Gly186Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC12A3 NM_001126108.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.99

Genes affected

SLC12A3 (HGNC:10912): (solute carrier family 12 member 3) This gene encodes a renal thiazide-sensitive sodium-chloride cotransporter that is important for electrolyte homeostasis. This cotransporter mediates sodium and chloride reabsorption in the distal convoluted tubule. Mutations in this gene cause Gitelman syndrome, a disease similar to Bartter's syndrome, that is characterized by hypokalemic alkalosis combined with hypomagnesemia, low urinary calcium, and increased renin activity associated with normal blood pressure. This cotransporter is the target for thiazide diuretics that are used for treating high blood pressure. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.919

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC12A3	NM_001126108.2	c.557G>T	p.Gly186Val	missense_variant	Exon 4 of 26	ENST00000563236.6	NP_001119580.2
SLC12A3	NM_000339.3	c.557G>T	p.Gly186Val	missense_variant	Exon 4 of 26		NP_000330.3
SLC12A3	NM_001126107.2	c.554G>T	p.Gly185Val	missense_variant	Exon 4 of 26		NP_001119579.2
SLC12A3	NM_001410896.1	c.554G>T	p.Gly185Val	missense_variant	Exon 4 of 26		NP_001397825.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC12A3	ENST00000563236.6	c.557G>T	p.Gly186Val	missense_variant	Exon 4 of 26	1	NM_001126108.2	ENSP00000456149.2
SLC12A3	ENST00000438926.6	c.557G>T	p.Gly186Val	missense_variant	Exon 4 of 26	1		ENSP00000402152.2
SLC12A3	ENST00000566786.5	c.554G>T	p.Gly185Val	missense_variant	Exon 4 of 26	1		ENSP00000457552.1
SLC12A3	ENST00000262502.5	c.554G>T	p.Gly185Val	missense_variant	Exon 4 of 26	5		ENSP00000262502.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461852 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727222

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.77
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.26
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.92	.;.;D;D
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Benign	0.62	D
LIST_S2	Pathogenic	0.97	D;D;D;D
M_CAP	Uncertain	0.25	D
MetaRNN	Pathogenic	0.92	D;D;D;D
MetaSVM	Benign	-0.44	T
MutationAssessor	Benign	1.2	.;L;L;.
PrimateAI	Pathogenic	0.81	D
PROVEAN	Pathogenic	-5.6	D;D;D;D
REVEL	Pathogenic	0.70
Sift	Uncertain	0.0050	D;D;D;D
Sift4G	Uncertain	0.020	D;D;D;D
Polyphen		0.57	P;D;D;.
Vest4		0.96
MutPred		0.72		.;Loss of disorder (P = 0.09);Loss of disorder (P = 0.09);.;
MVP		1.0
MPC		0.46
ClinPred		1.0	D
GERP RS		4.9
Varity_R		0.85
gMVP		0.97

Splicing

Name	Calibrated prediction	Score	Prediction
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-56903692;