Variant 15-78533312-G-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.764G>T(p.Gly255Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

HYKK
NM_001013619.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.962

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=0.23128039).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HYKK	NM_001013619.4 linkuse as main transcript	c.764G>T	p.Gly255Val	missense_variant	5/5	ENST00000388988.9	NP_001013641.2
HYKK	NM_001083612.2 linkuse as main transcript	c.662-3988G>T		intron_variant			NP_001077081.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HYKK	ENST00000388988.9 linkuse as main transcript	c.764G>T	p.Gly255Val	missense_variant	5/5	5	NM_001013619.4	ENSP00000373640	P1	A2RU49-1
HYKK	ENST00000569878.5 linkuse as main transcript	c.764G>T	p.Gly255Val	missense_variant	4/4	5		ENSP00000455459	P1	A2RU49-1
HYKK	ENST00000408962.6 linkuse as main transcript	c.662-3988G>T		intron_variant		5		ENSP00000386197		A2RU49-3
HYKK	ENST00000563233.2 linkuse as main transcript	c.662-3988G>T		intron_variant		2		ENSP00000454850		A2RU49-3

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000801

AC:

AN:

249538

Hom.:

AF XY:

0.0000739

AC XY:

AN XY:

135382

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00139

Gnomad EAS exome

AF:

0.000167

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000287

AC:

AN:

1461796

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00103

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.000192

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000152

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.0000662

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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

May 22, 2023

The c.764G>T (p.G255V) alteration is located in exon 5 (coding exon 4) of the HYKK gene. This alteration results from a G to T substitution at nucleotide position 764, causing the glycine (G) at amino acid position 255 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

Pathogenic

0.74

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.41

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.24

T;T

Eigen

Benign

-0.70

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.11

LIST_S2

Uncertain

0.86

D;.

M_CAP

Benign

0.054

MetaRNN

Benign

0.23

T;T

MetaSVM

Benign

-0.59

MutationAssessor

Uncertain

2.4

M;M

MutationTaster

Benign

0.99

N;N

PrimateAI

Benign

0.28

PROVEAN

Pathogenic

-5.9

D;D

REVEL

Benign

0.21

Sift

Uncertain

0.0060

D;D

Sift4G

Uncertain

0.038

D;D

Polyphen

1.0

D;D

Vest4

0.36

MutPred

0.72

Loss of catalytic residue at G255 (P = 0.1538);Loss of catalytic residue at G255 (P = 0.1538);

MVP

0.20

MPC

0.38

ClinPred

0.82

GERP RS

-4.3

Varity_R

0.46

gMVP

0.64

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