Variant 15-84817376-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020778.5(ALPK3):c.-77G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,220,206 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000019 ( 0 hom. )

Consequence

ALPK3
NM_020778.5 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.538

Variant links:

Genes affected

ALPK3 (HGNC:17574): (alpha kinase 3) Predicted to enable ATP binding activity; protein serine kinase activity; and protein serine/threonine kinase activity. Predicted to be involved in cardiac muscle cell development. Predicted to be active in nucleus. Implicated in hypertrophic cardiomyopathy. [provided by Alliance of Genome Resources, Apr 2022]

ALPK3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.084248155).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ALPK3	NM_020778.5 linkuse as main transcript	c.-77G>A		5_prime_UTR_variant	1/14	ENST00000258888.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ALPK3	ENST00000258888.6 linkuse as main transcript	c.-77G>A		5_prime_UTR_variant	1/14	1	NM_020778.5	P1

Frequencies

GnomAD3 genomes

AF:

0.0000198

AC:

AN:

151200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000443

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000187

AC:

AN:

1069006

Hom.:

Cov.:

AF XY:

0.00000198

AC XY:

AN XY:

505806

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000219

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000198

AC:

AN:

151200

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

73812

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000443

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Apr 28, 2017

A variant of uncertain significance has been identified in the ALPK3 gene. The R177K variant has not been published as pathogenic or been reported as benign to our knowledge. This variant is not observed in large population cohorts; however, limited data are available (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The R177K variant is a conservative amino acid substitution, which is not likely to impact secondary protein structure as these residues share similar properties. This substitution occurs at a position that is not conserved across species and in silico analysis predicts this variant likely does not alter the protein structure/function. -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 19, 2022

The p.R177K variant (also known as c.530G>A), located in coding exon 1 of the ALPK3 gene, results from a G to A substitution at nucleotide position 530. The arginine at codon 177 is replaced by lysine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.49

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.0033

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.23

M_CAP

Uncertain

0.23

MetaRNN

Benign

0.084

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-0.28

REVEL

Benign

0.030

Sift

Benign

0.21

Sift4G

Benign

0.96

Polyphen

0.092

Vest4

0.13

MutPred

0.43

Gain of glycosylation at R177 (P = 0.0053);

MVP

0.23

MPC

1.1

ClinPred

0.059

GERP RS

-0.17

Varity_R

0.14

gMVP

0.15

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