9-104604788-T-C

Variant names:

• chr9-104604788-T-C
• rs543528523
• NM_001004481.1:c.840A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001004481.1(OR13C2):​c.840A>G​(p.Ile280Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,400 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. 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. I280R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000046 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000027 (1 hom.)
• Consequence: OR13C2 NM_001004481.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -2.25
• Publications: 0 publications found

Genes affected

OR13C2 (HGNC:14701): (olfactory receptor family 13 subfamily C 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]

ENSG00000297079 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.14991108).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001004481.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OR13C2	NM_001004481.1	MANE Select	c.840A>G	p.Ile280Met	missense	Exon 1 of 1	NP_001004481.1	Q8NGS9

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OR13C2	ENST00000542196.2	TSL:6 MANE Select	c.840A>G	p.Ile280Met	missense	Exon 1 of 1	ENSP00000438815.1	Q8NGS9
	ENSG00000297079	ENST00000745188.1		n.370+17242A>G		intron	N/A
	ENSG00000297079	ENST00000745189.1		n.326+17242A>G		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0000462 AC: 7 AN: 151638 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000146

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: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251134 AF XY: 0.00000737

Gnomad AFR exome AF: 0.000123

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: 0.00000881

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461644 Hom.: 1 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 727128

African (AFR) AF: 0.0000599 AC: 2 AN: 33398

American (AMR) AF: 0.00 AC: 0 AN: 44708

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26120

East Asian (EAS) AF: 0.00 AC: 0 AN: 39688

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

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111910

Other (OTH) AF: 0.0000331 AC: 2 AN: 60380

GnomAD4 genome AF: 0.0000461 AC: 7 AN: 151756 Hom.: 0 Cov.: 32 AF XY: 0.0000539 AC XY: 4 AN XY: 74196

African (AFR) AF: 0.000146 AC: 6 AN: 41110

American (AMR) AF: 0.00 AC: 0 AN: 15262

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2110

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000416

ExAC AF: 0.0000247 AC: 3

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.016	T
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.58
FATHMM_MKL	Benign	0.048	N
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.98	L
PhyloP100		-2.2
PrimateAI	Benign	0.22	T
PROVEAN	Benign	-2.1	N
REVEL	Benign	0.12
Sift	Benign	0.084	T
Sift4G	Benign	0.067	T
Polyphen		0.78	P
Vest4		0.25
MutPred		0.58		Gain of disorder (P = 0.0548)
MVP		0.45
MPC		0.72
ClinPred		0.13	T
GERP RS		0.63
Varity_R		0.13
gMVP		0.080
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: rs543528523; hg19: chr9-107367069;