chr16-67431321-C-A

Position:

• chr16-67431321-C-A

Variant summary

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

The NM_000196.4(HSD11B2):​c.73C>A​(p.Arg25Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000363 in 1,101,412 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000036 (0 hom.)
• Consequence: HSD11B2 NM_000196.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.01

Genes affected

HSD11B2 (HGNC:5209): (hydroxysteroid 11-beta dehydrogenase 2) There are at least two isozymes of the corticosteroid 11-beta-dehydrogenase, a microsomal enzyme complex responsible for the interconversion of cortisol and cortisone. The type I isozyme has both 11-beta-dehydrogenase (cortisol to cortisone) and 11-oxoreductase (cortisone to cortisol) activities. The type II isozyme, encoded by this gene, has only 11-beta-dehydrogenase activity. In aldosterone-selective epithelial tissues such as the kidney, the type II isozyme catalyzes the glucocorticoid cortisol to the inactive metabolite cortisone, thus preventing illicit activation of the mineralocorticoid receptor. In tissues that do not express the mineralocorticoid receptor, such as the placenta and testis, it protects cells from the growth-inhibiting and/or pro-apoptotic effects of cortisol, particularly during embryonic development. Mutations in this gene cause the syndrome of apparent mineralocorticoid excess and hypertension. [provided by RefSeq, Feb 2010]

(HGNC:):

ACMG classification

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/exons	MANE	Protein	UniProt
HSD11B2	NM_000196.4	c.73C>A	p.Arg25Ser	missense_variant	1/5	ENST00000326152.6	NP_000187.3
HSD11B2	XM_047434048.1	c.-48+542C>A		intron_variant			XP_047290004.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HSD11B2	ENST00000326152.6	c.73C>A	p.Arg25Ser	missense_variant	1/5	1	NM_000196.4	ENSP00000316786	P1
	ENST00000567261.1	n.135+9G>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000363 AC: 4 AN: 1101412 Hom.: 0 Cov.: 30 AF XY: 0.00000373 AC XY: 2 AN XY: 535930

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: 0.00000109

Gnomad4 OTH exome AF: 0.0000716

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 07, 2022

The c.73C>A (p.R25S) alteration is located in exon 1 (coding exon 1) of the HSD11B2 gene. This alteration results from a C to A substitution at nucleotide position 73, causing the arginine (R) at amino acid position 25 to be replaced by a serine (S). 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	Uncertain	0.39
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.28	T
Eigen	Benign	0.16
Eigen_PC	Benign	0.19
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.57	T
M_CAP	Pathogenic	0.99	D
MetaRNN	Uncertain	0.55	D
MetaSVM	Uncertain	-0.23	T
MutationAssessor	Benign	0.0	N
MutationTaster	Benign	0.69	D
PrimateAI	Pathogenic	0.94	D
PROVEAN	Benign	-0.060	N
REVEL	Uncertain	0.41
Sift	Benign	0.14	T
Sift4G	Benign	0.69	T
Polyphen		0.99	D
Vest4		0.34
MutPred		0.37		Loss of MoRF binding (P = 0.0079);
MVP		0.93
MPC		1.5
ClinPred		0.73	D
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.20
gMVP		0.43

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-67465224;