9-96254924-T-G

Position:

chr9-96254924-T-G

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PP3_ModeratePP5_Very_Strong

The NM_000197.2(HSD17B3):c.221A>C(p.Asn74Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,840 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 Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

HSD17B3
NM_000197.2 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 2.83

Variant links:

Genes affected

HSD17B3 (HGNC:5212): (hydroxysteroid 17-beta dehydrogenase 3) This isoform of 17 beta-hydroxysteroid dehydrogenase is expressed predominantly in the testis and catalyzes the conversion of androstenedione to testosterone. It preferentially uses NADP as cofactor. Deficiency can result in male pseudohermaphroditism with gynecomastia. [provided by RefSeq, Jul 2008]

HSD17B3 links:

ENSG00000285269 (HGNC:):

ENSG00000285269 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM1

In a binding_site (size 29) in uniprot entity DHB3_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_000197.2

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.898

PP5

Variant 9-96254924-T-G is Pathogenic according to our data. Variant chr9-96254924-T-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 435473.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-96254924-T-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HSD17B3	NM_000197.2 linkuse as main transcript	c.221A>C	p.Asn74Thr	missense_variant	3/11	ENST00000375263.8	NP_000188.1	P37058-1Q6FH62
SLC35D2-HSD17B3	NR_182427.1 linkuse as main transcript	n.2988A>C		non_coding_transcript_exon_variant	18/26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
HSD17B3	ENST00000375263.8 linkuse as main transcript	c.221A>C	p.Asn74Thr	missense_variant	3/11	1	NM_000197.2	ENSP00000364412.3	P37058-1
ENSG00000285269	ENST00000643789.1 linkuse as main transcript	n.*1897A>C		non_coding_transcript_exon_variant	14/22			ENSP00000494818.1	A0A2R8Y5X9
ENSG00000285269	ENST00000643789.1 linkuse as main transcript	n.*1897A>C		3_prime_UTR_variant	14/22			ENSP00000494818.1	A0A2R8Y5X9

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152140

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:

0.00

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:

0.0000159

AC:

AN:

250984

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135650

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000171

AC:

AN:

1461700

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727118

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:

0.0000225

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152140

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74310

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Testosterone 17-beta-dehydrogenase deficiency

Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Aug 12, 2021	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Sep 02, 2016	- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 20, 2023

This sequence change replaces asparagine, which is neutral and polar, with threonine, which is neutral and polar, at codon 74 of the HSD17B3 protein (p.Asn74Thr). This variant is present in population databases (rs780178733, gnomAD 0.003%). This missense change has been observed in individuals with 17-beta-hydroxysteroid dehydrogenase type 3 deficiency (PMID: 10599740). ClinVar contains an entry for this variant (Variation ID: 435473). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt HSD17B3 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects HSD17B3 function (PMID: 31614207). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Benign

-0.0054

BayesDel_noAF

Benign

-0.18

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.66

D;.;.;T

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.82

T;D;D;D

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.90

D;D;D;D

MetaSVM

Uncertain

0.69

MutationAssessor

Uncertain

2.0

M;M;.;.

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-3.7

D;D;.;.

REVEL

Uncertain

0.57

Sift

Benign

0.036

D;D;.;.

Sift4G

Uncertain

0.044

D;D;.;.

Polyphen

0.91

P;.;.;.

Vest4

0.77

MutPred

0.82

Gain of phosphorylation at N74 (P = 0.0559);Gain of phosphorylation at N74 (P = 0.0559);Gain of phosphorylation at N74 (P = 0.0559);Gain of phosphorylation at N74 (P = 0.0559);

MVP

0.92

MPC

0.50

ClinPred

0.83

GERP RS

4.8

Varity_R

0.29

gMVP

0.67

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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