rs6211

Positions:

• chr1-119419555-G-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP6

The NM_000198.4(HSD3B2):​c.280G>C​(p.Glu94Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000162 in 1,613,914 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

• Frequency:
  • Genomes: 𝑓 0.00058 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00012 (0 hom.)
• Consequence: HSD3B2 NM_000198.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 1.58

Genes affected

HSD3B2 (HGNC:5218): (hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 2) The protein encoded by this gene is a bifunctional enzyme that catalyzes the oxidative conversion of delta(5)-ene-3-beta-hydroxy steroid, and the oxidative conversion of ketosteroids. It plays a crucial role in the biosynthesis of all classes of hormonal steroids. This gene is predominantly expressed in the adrenals and the gonads. Mutations in this gene are associated with 3-beta-hydroxysteroid dehydrogenase, type II, deficiency. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2009]

HSD3B2 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.013342261).
• BP6: Variant 1-119419555-G-C is Benign according to our data. Variant chr1-119419555-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1694521.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HSD3B2	NM_000198.4	c.280G>C	p.Glu94Gln	missense_variant	3/4	ENST00000369416.4	NP_000189.1
HSD3B2	NM_001166120.2	c.280G>C	p.Glu94Gln	missense_variant	3/4		NP_001159592.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HSD3B2	ENST00000369416.4	c.280G>C	p.Glu94Gln	missense_variant	3/4	1	NM_000198.4	ENSP00000358424.3

Frequencies

GnomAD3 genomes AF: 0.000565 AC: 86 AN: 152174 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00166

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000262

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000118

Gnomad OTH AF: 0.00191

GnomAD3 exomes AF: 0.000207 AC: 52 AN: 251032 Hom.: 0 AF XY: 0.000184 AC XY: 25 AN XY: 135676

Gnomad AFR exome AF: 0.00209

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000545

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000794

Gnomad OTH exome AF: 0.000489

GnomAD4 exome AF: 0.000119 AC: 174 AN: 1461622 Hom.: 0 Cov.: 31 AF XY: 0.000109 AC XY: 79 AN XY: 727126

Gnomad4 AFR exome AF: 0.00239

Gnomad4 AMR exome AF: 0.000268

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000288

Gnomad4 OTH exome AF: 0.000497

GnomAD4 genome AF: 0.000578 AC: 88 AN: 152292 Hom.: 0 Cov.: 32 AF XY: 0.000551 AC XY: 41 AN XY: 74452

Gnomad4 AFR AF: 0.00171

Gnomad4 AMR AF: 0.000262

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000118

Gnomad4 OTH AF: 0.00189

Alfa AF: 0.000201 Hom.: 1

Bravo AF: 0.000601

ESP6500AA AF: 0.000681 AC: 3

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.000280 AC: 34

Asia WGS AF: 0.000577 AC: 2 AN: 3478

EpiCase AF: 0.000164

EpiControl AF: 0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 27, 2021	This sequence change replaces glutamic acid, which is acidic and polar, with glutamine, which is neutral and polar, at codon 94 of the HSD3B2 protein (p.Glu94Gln). This variant is present in population databases (rs6211, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with HSD3B2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	May 01, 2022	HSD3B2: BP4 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	0.93
DANN	Benign	0.088
DEOGEN2	Benign	0.31	T;T;T
Eigen	Benign	-0.76
Eigen_PC	Benign	-0.71
FATHMM_MKL	Benign	0.39	N
LIST_S2	Benign	0.53	T;T;.
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.013	T;T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.35	N;.;N
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.48	N;N;N
REVEL	Benign	0.080
Sift	Benign	0.87	T;T;T
Sift4G	Benign	0.54	T;T;T
Polyphen		0.080	B;.;B
Vest4		0.055
MVP		0.81
MPC		0.26
ClinPred		0.0013	T
GERP RS		1.8
Varity_R		0.057
gMVP		0.27

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

Other links and lift over

dbSNP: rs6211; hg19: chr1-119962178;