11-7938995-G-C

Variant names:

• chr11-7938995-G-C
• rs754413151
• NM_001003745.2:c.526C>G

Variant summary

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

The NM_001003745.2(OR10A3):​c.526C>G​(p.His176Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H176Q) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: OR10A3 NM_001003745.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.33

Genes affected

OR10A3 (HGNC:8162): (olfactory receptor family 10 subfamily A member 3) 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]

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
OR10A3	NM_001003745.2	c.526C>G	p.His176Asp	missense_variant	Exon 2 of 2	ENST00000642047.1	NP_001003745.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR10A3	ENST00000642047.1	c.526C>G	p.His176Asp	missense_variant	Exon 2 of 2		NM_001003745.2	ENSP00000493303.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Nov 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.526C>G (p.H176D) alteration is located in exon 1 (coding exon 1) of the OR10A3 gene. This alteration results from a C to G substitution at nucleotide position 526, causing the histidine (H) at amino acid position 176 to be replaced by an aspartic acid (D). 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	0.36
BayesDel_addAF	Benign	-0.088	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.025	T;T
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.89	D
M_CAP	Benign	0.0019	T
MetaRNN	Uncertain	0.51	D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Pathogenic	3.0	M;M
PrimateAI	Benign	0.31	T
PROVEAN	Pathogenic	-8.9	.;D
REVEL	Benign	0.12
Sift	Pathogenic	0.0	.;D
Sift4G	Uncertain	0.0020	.;D
Polyphen		1.0	D;D
Vest4		0.68
MutPred		0.53		Loss of sheet (P = 0.1907);Loss of sheet (P = 0.1907);
MVP		0.75
MPC		0.042
ClinPred		1.0	D
GERP RS		4.0
Varity_R		0.60
gMVP		0.30

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: rs754413151; hg19: chr11-7960542;