dbSNP rs372223061: HSD17B2:p.Leu179Ile (chr16-82070998-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002153.3(HSD17B2):c.535C>A(p.Leu179Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,614,074 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L179F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

HSD17B2
NM_002153.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.794

Variant links:

Genes affected

HSD17B2 (HGNC:5211): (hydroxysteroid 17-beta dehydrogenase 2) Enables estradiol 17-beta-dehydrogenase activity and testosterone dehydrogenase (NAD+) activity. Involved in response to retinoic acid. Predicted to be located in endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

HSD17B2 links:

HSD17B2-AS1 (HGNC:56281): (HSD17B2 antisense RNA 1)

HSD17B2-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HSD17B2	NM_002153.3 link	c.535C>A	p.Leu179Ile	missense_variant	Exon 3 of 5	ENST00000199936.9	NP_002144.1	P37059
HSD17B2	XM_047434049.1 link	c.535C>A	p.Leu179Ile	missense_variant	Exon 3 of 4		XP_047290005.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HSD17B2	ENST00000199936.9 link	c.535C>A	p.Leu179Ile	missense_variant	Exon 3 of 5	1	NM_002153.3	ENSP00000199936.4		P37059

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727232

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:

0.0000117

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.30

T;T;T;.;.;.

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.74

T;T;T;T;T;T

M_CAP

Benign

0.025

MetaRNN

Uncertain

0.61

D;D;D;D;D;D

MetaSVM

Benign

-0.83

MutationAssessor

Benign

1.8

.;L;.;.;.;.

PrimateAI

Benign

0.45

PROVEAN

Benign

-1.8

N;N;N;N;N;N

REVEL

Benign

0.15

Sift

Benign

0.059

T;D;T;D;T;T

Sift4G

Benign

0.084

T;D;D;T;T;T

Polyphen

1.0

.;D;.;.;.;.

Vest4

0.33

MutPred

0.51

.;Loss of catalytic residue at M182 (P = 0.0487);.;.;.;.;

MVP

0.92

MPC

0.020

ClinPred

0.86

GERP RS

4.9

Varity_R

0.64

gMVP

0.24

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over