Variant 8-36817717-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001031836.3(KCNU1):c.1063G>A(p.Asp355Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00036 in 1,610,010 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00038 ( 1 hom. )

Consequence

KCNU1
NM_001031836.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.804

Variant links:

Genes affected

KCNU1 (HGNC:18867): (potassium calcium-activated channel subfamily U member 1) This gene encodes a member of the potassium channel family of proteins. The encoded voltage-gated ion channel allows the outward flow of potassium ions during plasma membrane hyperpolarization in sperm. Opening of this channel may be regulated by calcium ion levels. Homozygous knockout mice that lack the related mouse gene exhibit male sterility. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

KCNU1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.036327392).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCNU1	NM_001031836.3 linkuse as main transcript	c.1063G>A	p.Asp355Asn	missense_variant	10/27	ENST00000399881.8	NP_001027006.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KCNU1	ENST00000399881.8 linkuse as main transcript	c.1063G>A	p.Asp355Asn	missense_variant	10/27	2	NM_001031836.3	ENSP00000382770	P1
KCNU1	ENST00000522372.5 linkuse as main transcript	c.1063G>A	p.Asp355Asn	missense_variant, NMD_transcript_variant	10/28	1		ENSP00000428552

Frequencies

GnomAD3 genomes

AF:

0.000186

AC:

AN:

150742

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000980

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000197

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000325

Gnomad OTH

AF:

0.000483

GnomAD3 exomes

AF:

0.000149

AC:

AN:

248958

Hom.:

AF XY:

0.000148

AC XY:

AN XY:

135052

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000310

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000378

AC:

552

AN:

1459150

Hom.:

Cov.:

AF XY:

0.000369

AC XY:

268

AN XY:

726104

show subpopulations

Gnomad4 AFR exome

AF:

0.0000897

Gnomad4 AMR exome

AF:

0.0000224

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:

0.000482

Gnomad4 OTH exome

AF:

0.000216

GnomAD4 genome

AF:

0.000186

AC:

AN:

150860

Hom.:

Cov.:

AF XY:

0.0000949

AC XY:

AN XY:

73746

show subpopulations

Gnomad4 AFR

AF:

0.0000977

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000198

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000325

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000274

Hom.:

Bravo

AF:

0.000178

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000121

AC:

ExAC

AF:

0.000108

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000297

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 01, 2022

The c.1063G>A (p.D355N) alteration is located in exon 10 (coding exon 10) of the KCNU1 gene. This alteration results from a G to A substitution at nucleotide position 1063, causing the aspartic acid (D) at amino acid position 355 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.79

CADD

Benign

7.0

DANN

Benign

0.96

DEOGEN2

Benign

0.041

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.020

LIST_S2

Benign

0.15

M_CAP

Benign

0.0069

MetaRNN

Benign

0.036

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.69

MutationTaster

Benign

1.0

PrimateAI

Benign

0.31

PROVEAN

Benign

0.30

REVEL

Benign

0.024

Sift

Uncertain

0.022

Sift4G

Benign

0.18

Polyphen

0.0

Vest4

0.089

MVP

0.20

MPC

0.022

ClinPred

0.036

GERP RS

-0.16

Varity_R

0.038

gMVP

0.13

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over