Variant chr20-63560059-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001037335.2(HELZ2):c.7694G>A(p.Arg2565His) variant causes a missense change. The variant allele was found at a frequency of 0.00000755 in 1,456,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

HELZ2
NM_001037335.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.72

Variant links:

Genes affected

HELZ2 (HGNC:30021): (helicase with zinc finger 2) The protein encoded by this gene is a nuclear transcriptional co-activator for peroxisome proliferator activated receptor alpha. The encoded protein contains a zinc finger and is a helicase that appears to be part of the peroxisome proliferator activated receptor alpha interacting complex. This gene is a member of the DNA2/NAM7 helicase gene family. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

HELZ2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.961

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
HELZ2	NM_001037335.2 linkuse as main transcript	c.7694G>A	p.Arg2565His	missense_variant	19/20	ENST00000467148.2	NP_001032412.2
HELZ2	NM_033405.3 linkuse as main transcript	c.5987G>A	p.Arg1996His	missense_variant	13/14		NP_208384.3
HELZ2	XM_024452006.2 linkuse as main transcript	c.7778G>A	p.Arg2593His	missense_variant	17/18		XP_024307774.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HELZ2	ENST00000467148.2 linkuse as main transcript	c.7694G>A	p.Arg2565His	missense_variant	19/20	1	NM_001037335.2	ENSP00000417401	P1	Q9BYK8-1
HELZ2	ENST00000427522.6 linkuse as main transcript	c.5987G>A	p.Arg1996His	missense_variant	13/14	1		ENSP00000393257		Q9BYK8-2
HELZ2	ENST00000478861.1 linkuse as main transcript	n.559+530G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000825

AC:

AN:

242278

Hom.:

AF XY:

0.00000757

AC XY:

AN XY:

132014

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000557

Gnomad SAS exome

AF:

0.0000330

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000755

AC:

AN:

1456588

Hom.:

Cov.:

AF XY:

0.00000552

AC XY:

AN XY:

724666

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:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000720

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000826

AC:

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

Feb 03, 2022

The c.7694G>A (p.R2565H) alteration is located in exon 19 (coding exon 18) of the HELZ2 gene. This alteration results from a G to A substitution at nucleotide position 7694, causing the arginine (R) at amino acid position 2565 to be replaced by a histidine (H). 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

0.77

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.32

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.72

.;D

Eigen

Pathogenic

0.78

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

T;T

M_CAP

Uncertain

0.28

MetaRNN

Pathogenic

0.96

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.6

.;H

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.64

PROVEAN

Pathogenic

-4.6

D;D

REVEL

Pathogenic

0.89

Sift

Benign

0.031

D;T

Sift4G

Uncertain

0.0040

D;D

Polyphen

1.0

D;D

Vest4

0.74

MutPred

0.81

.;Loss of MoRF binding (P = 0.0139);

MVP

0.72

MPC

0.80

ClinPred

1.0

GERP RS

4.0

Varity_R

0.27

gMVP

0.66

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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