rs764478248

Variant names:

• chr11-55343649-G-A
• rs764478248
• NM_001005274.1:c.449G>A

Your query was ambiguous. Multiple possible variants found:

• chr11-55343649-G-A
• chr11-55343649-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001005274.1(OR4A16):​c.449G>A​(p.Gly150Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,730 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G150V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: OR4A16 NM_001005274.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.111
• Publications: 2 publications found

Genes affected

OR4A16 (HGNC:15153): (olfactory receptor family 4 subfamily A member 16) 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

Our verdict: Uncertain_significance. The variant received 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
OR4A16	NM_001005274.1	c.449G>A	p.Gly150Asp	missense_variant	Exon 1 of 1	ENST00000314721.5	NP_001005274.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR4A16	ENST00000314721.5	c.449G>A	p.Gly150Asp	missense_variant	Exon 1 of 1	6	NM_001005274.1	ENSP00000325128.2

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152058 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000943

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 250994 AF XY: 0.00000737

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461672 Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2 AN XY: 727142

African (AFR) AF: 0.00 AC: 0 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44700

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39662

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.0000749 AC: 4 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111892

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152058 Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2 AN XY: 74238

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000483 AC: 2 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15250

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5156

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.0000943 AC: 1 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67994

Other (OTH) AF: 0.00 AC: 0 AN: 2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000626), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.0044	T
BayesDel_noAF	Benign	-0.24
CADD	Uncertain	23
DANN	Benign	0.96
DEOGEN2	Benign	0.044	T
Eigen	Benign	-0.075
Eigen_PC	Benign	-0.33
FATHMM_MKL	Benign	0.099	N
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.0055	T
MetaRNN	Uncertain	0.46	T
MetaSVM	Benign	-0.75	T
MutationAssessor	Pathogenic	4.1	H
PhyloP100		0.11
PrimateAI	Benign	0.26	T
PROVEAN	Pathogenic	-6.6	D
REVEL	Benign	0.16
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.0050	D
Polyphen		0.66	P
Vest4		0.27
MutPred		0.73		Loss of catalytic residue at S154 (P = 0.082);
MVP		0.30
MPC		0.0013
ClinPred		0.69	D
GERP RS		2.7
PromoterAI		0.0038	Neutral
Varity_R		0.82
gMVP		0.46
Mutation Taster		=100/0	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

dbSNP: rs764478248; hg19: chr11-55111125;