NM_021724.5:c.1837G>A

Variant names:

• chr17-40093091-C-T
• NM_021724.5:c.1837G>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_021724.5(NR1D1):​c.1837G>A​(p.Ala613Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,804 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: 6.8e-7 (0 hom.)
• Consequence: NR1D1 NM_021724.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0700
• Publications: 0 publications found

Genes affected

NR1D1 (HGNC:7962): (nuclear receptor subfamily 1 group D member 1) This gene encodes a transcription factor that is a member of the nuclear receptor subfamily 1. The encoded protein is a ligand-sensitive transcription factor that negatively regulates the expression of core clock proteins. In particular this protein represses the circadian clock transcription factor aryl hydrocarbon receptor nuclear translocator-like protein 1 (ARNTL). This protein may also be involved in regulating genes that function in metabolic, inflammatory and cardiovascular processes. [provided by RefSeq, Jan 2013]

THRA (HGNC:11796): (thyroid hormone receptor alpha) The protein encoded by this gene is a nuclear hormone receptor for triiodothyronine. It is one of the several receptors for thyroid hormone, and has been shown to mediate the biological activities of thyroid hormone. Knockout studies in mice suggest that the different receptors, while having certain extent of redundancy, may mediate different functions of thyroid hormone. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

THRA Gene-Disease associations (from GenCC):

• congenital nongoitrous hypothyroidism 6

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.32193846).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NR1D1	NM_021724.5	c.1837G>A	p.Ala613Thr	missense_variant	Exon 8 of 8	ENST00000246672.4	NP_068370.1
THRA	NM_199334.5	c.*3635C>T		downstream_gene_variant		ENST00000450525.7	NP_955366.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NR1D1	ENST00000246672.4	c.1837G>A	p.Ala613Thr	missense_variant	Exon 8 of 8	1	NM_021724.5	ENSP00000246672.3
THRA	ENST00000450525.7	c.*3635C>T		downstream_gene_variant		1	NM_199334.5	ENSP00000395641.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461804 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727204

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53338

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 10, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1837G>A (p.A613T) alteration is located in exon 8 (coding exon 8) of the NR1D1 gene. This alteration results from a G to A substitution at nucleotide position 1837, causing the alanine (A) at amino acid position 613 to be replaced by a threonine (T). 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	Benign	0.14
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.070
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.27	T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Benign	0.81	T
M_CAP	Pathogenic	0.43	D
MetaRNN	Benign	0.32	T
MetaSVM	Uncertain	0.52	D
PhyloP100		0.070
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-0.95	N
REVEL	Uncertain	0.46
Sift	Uncertain	0.0060	D
Sift4G	Uncertain	0.056	T
Polyphen		0.98	D
Vest4		0.29
MutPred		0.41		Gain of phosphorylation at A613 (P = 0.0578);
MVP		0.70
MPC		1.4
ClinPred		0.98	D
GERP RS		5.0
Varity_R		0.16
gMVP		0.24
Mutation Taster		=63/37	polymorphism

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

Other links and lift over

hg19: chr17-38249344; COSMIC: COSV99225527; COSMIC: COSV99225527;