12-753238-C-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_Strong BP6_Very_Strong BS2

The NM_213655.5(WNK1):c.-328C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00898 in 316,272 control chromosomes in the GnomAD database, including 20 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0081 (6 hom., cov: 31)
  • Exomes 𝑓: 0.0097 (14 hom.)
• Consequence: WNK1 NM_213655.5 5_prime_UTR
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.312

Genes affected

WNK1 (HGNC:14540): (WNK lysine deficient protein kinase 1) This gene encodes a member of the WNK subfamily of serine/threonine protein kinases. The encoded protein may be a key regulator of blood pressure by controlling the transport of sodium and chloride ions. Mutations in this gene have been associated with pseudohypoaldosteronism type II and hereditary sensory neuropathy type II. Alternatively spliced transcript variants encoding different isoforms have been described but the full-length nature of all of them has yet to be determined.[provided by RefSeq, May 2010]

ACMG classification

Verdict is Benign. Variant got -16 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.74).
• BP6: Variant 12-753238-C-G is Benign according to our data. Variant chr12-753238-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 310522.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS2: High Homozygotes in GnomAd at 6 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WNK1	NM_018979.4	c.-328C>G		5_prime_UTR_variant	1/28	ENST00000315939.11
WNK1	NM_213655.5	c.-328C>G		5_prime_UTR_variant	1/28	ENST00000340908.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WNK1	ENST00000315939.11	c.-328C>G		5_prime_UTR_variant	1/28	1	NM_018979.4	P2
WNK1	ENST00000340908.9	c.-328C>G		5_prime_UTR_variant	1/28	5	NM_213655.5	A2

Frequencies

GnomAD3 genomes AF: 0.00816 AC: 1240 AN: 151996 Hom.: 6 Cov.: 31

Gnomad AFR AF: 0.00188

Gnomad AMI AF: 0.00548

Gnomad AMR AF: 0.00262

Gnomad ASJ AF: 0.00548

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00124

Gnomad FIN AF: 0.0167

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0133

Gnomad OTH AF: 0.00671

GnomAD4 exome AF: 0.00975 AC: 1600 AN: 164168 Hom.: 14 Cov.: 0 AF XY: 0.00895 AC XY: 772 AN XY: 86252

Gnomad4 AFR exome AF: 0.000824

Gnomad4 AMR exome AF: 0.00184

Gnomad4 ASJ exome AF: 0.00494

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00191

Gnomad4 FIN exome AF: 0.0180

Gnomad4 NFE exome AF: 0.0120

Gnomad4 OTH exome AF: 0.00821

GnomAD4 genome AF: 0.00815 AC: 1239 AN: 152104 Hom.: 6 Cov.: 31 AF XY: 0.00809 AC XY: 602 AN XY: 74376

Gnomad4 AFR AF: 0.00188

Gnomad4 AMR AF: 0.00262

Gnomad4 ASJ AF: 0.00548

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00104

Gnomad4 FIN AF: 0.0167

Gnomad4 NFE AF: 0.0133

Gnomad4 OTH AF: 0.00664

Alfa AF: 0.00730 Hom.: 1

Bravo AF: 0.00626

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Pseudohypoaldosteronism type 2C 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. -

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jun 26, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.74
Cadd	Benign	15
Dann	Benign	0.82
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.2

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: rs189463195; hg19: chr12-862404;