9-96235548-G-A

Position:

chr9-96235548-G-A

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM2PP3_ModeratePP5_Very_Strong

The NM_000197.2(HSD17B3):c.845C>T(p.Pro282Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000217 in 1,613,920 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 (★★). Synonymous variant affecting the same amino acid position (i.e. P282P) has been classified as Likely benign.

Frequency

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

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

HSD17B3
NM_000197.2 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 4.34

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:

SLC35D2-HSD17B3 (HGNC:):

SLC35D2-HSD17B3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.925

PP5

Variant 9-96235548-G-A is Pathogenic according to our data. Variant chr9-96235548-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 265484.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-96235548-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HSD17B3	NM_000197.2 linkuse as main transcript	c.845C>T	p.Pro282Leu	missense_variant	11/11	ENST00000375263.8
SLC35D2-HSD17B3	NR_182427.1 linkuse as main transcript	n.3612C>T		non_coding_transcript_exon_variant	26/26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HSD17B3	ENST00000375263.8 linkuse as main transcript	c.845C>T	p.Pro282Leu	missense_variant	11/11	1	NM_000197.2	P1	P37058-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000319

AC:

AN:

250756

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135544

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461674

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727100

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152246

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.000169

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	May 05, 2016	The P282L pathogenic variant in the HSD17B3 gene has been reported previously in association with 17-beta hydroxysteroid dehydrogenase 3 deficiency in multiple individuals in the heterozygous state in the presence of a second HSD17B3 variant (Andersson et al., 1996; Boehmer et al., 1999; Phelan et al., 2015). Additionally, functional studies in transfected 239 cells with the P282L variant show that this variant inactivates the enzyme (Andersson et al., 1996). The P282L variant was not observed at any significant frequency in approximately 6500 individuals of European and African American ancestry by the NHLBI Exome Sequencing Project. The P282L variant is a semi-conservative amino acid substitution, which may impact secondary protein structure as these residues differ in some properties. This substitution occurs at a position that is conserved in mammals. In silico analysis predicts this variant is probably damaging to the protein structure/function. We interpret P282L as a pathogenic variant. -
Likely pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Oct 22, 2023	This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 282 of the HSD17B3 protein (p.Pro282Leu). This variant is present in population databases (rs144809928, gnomAD 0.03%). This missense change has been observed in individuals with autosomal recessive 17-beta hydroxysteroid dehydrogenase 3 deficiency (PMID: 8550739, 10599740, 25740850). ClinVar contains an entry for this variant (Variation ID: 265484). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on HSD17B3 protein function. Experimental studies have shown that this missense change affects HSD17B3 function (PMID: 8550739). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Testosterone 17-beta-dehydrogenase deficiency

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Jun 26, 2024

Variant summary: HSD17B3 c.845C>T (p.Pro282Leu) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 3.2e-05 in 250756 control chromosomes. c.845C>T has been reported in the literature in compound heterozygous individuals affected with Testosterone 17-beta-dehydrogenase deficiency (Andersson_1996, Boehmer_1999, Phelan_2015). These data indicate that the variant may be associated with disease. At least one publication reports experimental evidence evaluating an impact on protein function. The most pronounced variant effect results in <10% of normal activity in an in vitro assay (Andersson_1996). The following publications have been ascertained in the context of this evaluation (PMID: 8550739, 10599740, 25740850). ClinVar contains an entry for this variant (Variation ID: 265484). Based on the evidence outlined above, the variant was classified as likely pathogenic. -

Inborn genetic diseases

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 30, 2019

- -

Pseudohermaphroditism

Pathogenic:1

Pathogenic, no assertion criteria provided

clinical testing

Clinical Molecular Genetics Laboratory, Johns Hopkins All Children's Hospital

Feb 01, 2005

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.78

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Pathogenic

0.35

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.59

D;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.86

D;T

M_CAP

Uncertain

0.28

MetaRNN

Pathogenic

0.92

D;D

MetaSVM

Uncertain

0.63

MutationAssessor

Uncertain

2.7

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.52

PROVEAN

Pathogenic

-6.6

D;D

REVEL

Pathogenic

0.78

Sift

Uncertain

0.015

D;D

Sift4G

Uncertain

0.024

D;D

Polyphen

1.0

D;.

Vest4

0.84

MVP

0.97

MPC

0.65

ClinPred

0.82

GERP RS

4.8

Varity_R

0.36

gMVP

0.87

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