15-71810745-T-A

Variant names:

• chr15-71810745-T-A
• rs975791531
• NM_014249.4:c.2T>A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PVS1_Supporting PM2

The NM_014249.4(NR2E3):​c.2T>A​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000212 in 1,414,538 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: NR2E3 NM_014249.4 start_lost
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0950

Genes affected

NR2E3 (HGNC:7974): (nuclear receptor subfamily 2 group E member 3) This protein is part of a large family of nuclear receptor transcription factors involved in signaling pathways. Nuclear receptors have been shown to regulate pathways involved in embryonic development, as well as in maintenance of proper cell function in adults. Members of this family are characterized by discrete domains that function in DNA and ligand binding. This gene encodes a retinal nuclear receptor that is a ligand-dependent transcription factor. Defects in this gene are a cause of enhanced S cone syndrome. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PVS1: Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 9 codons. Genomic position: 71810768. Lost 0.020 part of the original CDS.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NR2E3	NM_014249.4	c.2T>A	p.Met1?	start_lost	Exon 1 of 8	ENST00000617575.5	NP_055064.1
NR2E3	NM_016346.4	c.2T>A	p.Met1?	start_lost	Exon 1 of 7		NP_057430.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NR2E3	ENST00000617575.5	c.2T>A	p.Met1?	start_lost	Exon 1 of 8	1	NM_014249.4	ENSP00000482504.1
NR2E3	ENST00000621098.1	c.2T>A	p.Met1?	start_lost	Exon 1 of 7	1		ENSP00000479962.1
NR2E3	ENST00000621736.4	c.-146-738T>A		intron_variant	Intron 3 of 9	2		ENSP00000479254.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000212 AC: 3 AN: 1414538 Hom.: 0 Cov.: 31 AF XY: 0.00000286 AC XY: 2 AN XY: 699244

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: 0.00000184

Gnomad4 OTH exome AF: 0.0000170

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Oct 03, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change affects the initiator methionine of the NR2E3 mRNA. The next in-frame methionine is located at codon 9. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with NR2E3-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.071	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	14
DANN	Benign	0.54
DEOGEN2	Benign	0.14	T;.
Eigen	Benign	-1.0
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.040	N
LIST_S2	Uncertain	0.90	D;D
MetaRNN	Benign	0.11	T;T
MetaSVM	Benign	-0.96	T
Sift4G	Uncertain	0.033	D;D
Polyphen		0.0	B;.
Vest4		0.12
MVP		0.14
ClinPred		0.11	T
GERP RS		1.6
Varity_R		0.26
gMVP		0.59

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: rs975791531; hg19: chr15-72103085;