11-6892179-C-G

Variant names:

• chr11-6892179-C-G
• rs1564926674
• NM_003700.1:c.322G>C

Variant summary

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

The NM_003700.1(OR2D2):​c.322G>C​(p.Gly108Arg) 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 1,461,634 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: OR2D2 NM_003700.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.605

Genes affected

OR2D2 (HGNC:8244): (olfactory receptor family 2 subfamily D member 2) Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. The nomenclature assigned to the olfactory receptor genes and proteins for this organism is independent of other organisms. [provided by RefSeq, Jul 2008]

ENSG00000283415 (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 rank	MANE	Protein	UniProt
OR2D2	NM_003700.1	c.322G>C	p.Gly108Arg	missense_variant	Exon 1 of 1	ENST00000299459.3	NP_003691.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR2D2	ENST00000299459.3	c.322G>C	p.Gly108Arg	missense_variant	Exon 1 of 1	6	NM_003700.1	ENSP00000299459.2
ENSG00000283415	ENST00000637205.2	n.605+32319G>C		intron_variant	Intron 2 of 3	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000399 AC: 1 AN: 250824 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135534

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461634 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 727120

Gnomad4 AFR exome AF: 0.0000299

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Mar 08, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.322G>C (p.G108R) alteration is located in exon 1 (coding exon 1) of the OR2D2 gene. This alteration results from a G to C substitution at nucleotide position 322, causing the glycine (G) at amino acid position 108 to be replaced by an arginine (R). 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	Benign	-0.13	T
BayesDel_noAF	Benign	-0.25
CADD	Uncertain	25
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.0097	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Benign	0.69	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.0054	T
MetaRNN	Uncertain	0.62	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Pathogenic	3.9	H
PrimateAI	Benign	0.35	T
PROVEAN	Pathogenic	-7.5	D
REVEL	Benign	0.20
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.45
MutPred		0.70		Loss of catalytic residue at C109 (P = 0.1359);
MVP		0.71
MPC		0.11
ClinPred		1.0	D
GERP RS		5.2
Varity_R		0.96
gMVP		0.52

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: rs1564926674; hg19: chr11-6913410;