X-30308222-A-G

Position:

• chrX-30308222-A-G

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM2 PM5 PP3_Strong PP5_Moderate

The NM_000475.5(NR0B1):​c.1142T>C​(p.Leu381Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L381H) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 23)
• Consequence: NR0B1 NM_000475.5 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 7.03

Genes affected

NR0B1 (HGNC:7960): (nuclear receptor subfamily 0 group B member 1) This gene encodes a protein that contains a DNA-binding domain. The encoded protein acts as a dominant-negative regulator of transcription which is mediated by the retinoic acid receptor. This protein also functions as an anti-testis gene by acting antagonistically to Sry. Mutations in this gene result in both X-linked congenital adrenal hypoplasia and hypogonadotropic hypogonadism. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chrX-30308223-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 36665.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.993
• PP5: Variant X-30308222-A-G is Pathogenic according to our data. Variant chrX-30308222-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 492856.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NR0B1	NM_000475.5	c.1142T>C	p.Leu381Pro	missense_variant	1/2	ENST00000378970.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NR0B1	ENST00000378970.5	c.1142T>C	p.Leu381Pro	missense_variant	1/2	1	NM_000475.5	P1
NR0B1	ENST00000378963.1	c.257T>C	p.Leu86Pro	missense_variant	1/2	2

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 23

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Congenital adrenal hypoplasia, X-linked Pathogenic:1

Pathogenic, no assertion criteria provided

clinical testing

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

Feb 13, 2008

- -

Congenital adrenal hypoplasia, X-linked;C1848296:46,XY sex reversal 2 Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 09, 2022

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. This variant disrupts the p.Leu381Pro amino acid residue in NR0B1. Other variant(s) that disrupt this residue have been observed in individuals with NR0B1-related conditions (PMID: 11113848, 28546232), which suggests that this may be a clinically significant amino acid residue. 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 NR0B1 protein function. ClinVar contains an entry for this variant (Variation ID: 492856). This missense change has been observed in individual(s) with clinical features of congenital adrenal hypoplasia (PMID: 31263616). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 381 of the NR0B1 protein (p.Leu381Pro). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.71	D
BayesDel_noAF	Pathogenic	0.79
CADD	Pathogenic	30
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.98	D;.
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.89	D;D
M_CAP	Pathogenic	0.99	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Pathogenic	3.3	M;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.72	T
PROVEAN	Pathogenic	-6.3	D;D
REVEL	Pathogenic	0.96
Sift	Uncertain	0.0080	D;D
Sift4G	Pathogenic	0.0010	D;D
Polyphen		1.0	D;.
Vest4		0.98
MutPred		0.98		Loss of stability (P = 0.0263);.;
MVP		1.0
MPC		2.0
ClinPred		1.0	D
GERP RS		5.8
Varity_R		0.99
gMVP		0.99

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs104894899; hg19: chrX-30326339;