Variant 15-78533267-C-T 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_001013619.4(HYKK):c.719C>T(p.Ala240Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A240T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HYKK
NM_001013619.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.03

Variant links:

Genes affected

HYKK (HGNC:34403): (hydroxylysine kinase) Enables hydroxylysine kinase activity. Predicted to be involved in lysine catabolic process. Predicted to be located in mitochondrial matrix. [provided by Alliance of Genome Resources, Apr 2022]

HYKK 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=0.09435856).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HYKK	NM_001013619.4 linkuse as main transcript	c.719C>T	p.Ala240Val	missense_variant	5/5	ENST00000388988.9
HYKK	NM_001083612.2 linkuse as main transcript	c.662-4033C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HYKK	ENST00000388988.9 linkuse as main transcript	c.719C>T	p.Ala240Val	missense_variant	5/5	5	NM_001013619.4	P1	A2RU49-1
HYKK	ENST00000569878.5 linkuse as main transcript	c.719C>T	p.Ala240Val	missense_variant	4/4	5		P1	A2RU49-1
HYKK	ENST00000408962.6 linkuse as main transcript	c.662-4033C>T		intron_variant		5			A2RU49-3
HYKK	ENST00000563233.2 linkuse as main transcript	c.662-4033C>T		intron_variant		2			A2RU49-3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152158

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461420

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727020

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74330

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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

Jul 10, 2023

The c.719C>T (p.A240V) alteration is located in exon 5 (coding exon 4) of the HYKK gene. This alteration results from a C to T substitution at nucleotide position 719, causing the alanine (A) at amino acid position 240 to be replaced by a valine (V). 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

0.083

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0066

T;T

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.039

FATHMM_MKL

Benign

0.36

LIST_S2

Benign

0.69

T;.

M_CAP

Benign

0.0037

MetaRNN

Benign

0.094

T;T

MetaSVM

Benign

-0.73

MutationAssessor

Uncertain

2.1

M;M

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.2

N;N

REVEL

Benign

0.051

Sift

Benign

0.28

T;T

Sift4G

Benign

0.23

T;T

Polyphen

0.13

B;B

Vest4

0.064

MutPred

0.29

Loss of ubiquitination at K238 (P = 0.0828);Loss of ubiquitination at K238 (P = 0.0828);

MVP

0.18

MPC

0.31

ClinPred

0.46

GERP RS

5.8

Varity_R

0.087

gMVP

0.32

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