15-84817408-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020778.5(ALPK3):c.-45G>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 0.00000184 in 1,084,328 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: not found (cov: 33)
  • Exomes 𝑓: 0.0000018 (0 hom.)
• Consequence: ALPK3 NM_020778.5 5_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.191

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]

ACMG classification

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=0.09101182).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ALPK3	NM_020778.5	c.-45G>A		5_prime_UTR_variant	1/14	ENST00000258888.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ALPK3	ENST00000258888.6	c.-45G>A		5_prime_UTR_variant	1/14	1	NM_020778.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000184 AC: 2 AN: 1084328 Hom.: 0 Cov.: 50 AF XY: 0.00000387 AC XY: 2 AN XY: 516332

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: 0.0000423

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000108

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jul 03, 2023

An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 1913054). This variant has not been reported in the literature in individuals affected with ALPK3-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 188 of the ALPK3 protein (p.Glu188Lys). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
Cadd	Benign	12
Dann	Uncertain	0.98
DEOGEN2	Benign	0.0030	T
Eigen	Benign	-0.99
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.45	T
M_CAP	Benign	0.035	D
MetaRNN	Benign	0.091	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
MutationTaster	Benign	1.0	N
PrimateAI	Pathogenic	0.90	D
PROVEAN	Benign	-0.14	N
REVEL	Benign	0.041
Sift	Uncertain	0.020	D
Sift4G	Benign	0.80	T
Polyphen		0.053	B
Vest4		0.15
MutPred		0.41		Gain of MoRF binding (P = 0.0013);
MVP		0.45
MPC		1.2
ClinPred		0.074	T
GERP RS		-0.99
Varity_R		0.080
gMVP		0.22

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: chr15-85360639;