Variant 17-82433794-C-G 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_001330542.2(HEXD):c.419C>G(p.Ala140Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 1,612,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

HEXD
NM_001330542.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.04

Variant links:

Genes affected

HEXD (HGNC:26307): (hexosaminidase D) Enables beta-N-acetylhexosaminidase activity. Predicted to be involved in carbohydrate metabolic process. Located in extracellular vesicle. [provided by Alliance of Genome Resources, Apr 2022]

HEXD 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=0.086025685).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HEXD	NM_001330542.2 linkuse as main transcript	c.419C>G	p.Ala140Gly	missense_variant	5/13	ENST00000327949.15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HEXD	ENST00000327949.15 linkuse as main transcript	c.419C>G	p.Ala140Gly	missense_variant	5/13	1	NM_001330542.2	P1	Q8WVB3-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152260

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000577

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000526

AC:

AN:

247194

Hom.:

AF XY:

0.0000372

AC XY:

AN XY:

134482

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000729

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1460578

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726590

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000429

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152378

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.0000331

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 22, 2023

The c.419C>G (p.A140G) alteration is located in exon 5 (coding exon 4) of the HEXDC gene. This alteration results from a C to G substitution at nucleotide position 419, causing the alanine (A) at amino acid position 140 to be replaced by a glycine (G). 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

0.14

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.16

Cadd

Benign

Dann

Benign

0.65

Eigen

Benign

-0.38

Eigen_PC

Benign

-0.53

FATHMM_MKL

Benign

0.10

LIST_S2

Uncertain

0.87

D;.;D;D;T

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.086

T;T;T;T;T

MetaSVM

Uncertain

0.16

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-2.7

D;D;.;.;.

REVEL

Uncertain

0.29

Sift

Benign

0.059

T;D;.;.;.

Sift4G

Uncertain

0.013

D;D;D;D;.

Vest4

0.24

MVP

0.61

MPC

0.58

ClinPred

0.26

GERP RS

1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.57

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