Genetic Variant OR13C5:p.Arg244Leu (chr9-104598683-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001004482.1(OR13C5):c.731G>T(p.Arg244Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000545 in 1,613,836 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

OR13C5
NM_001004482.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.72

Variant links:

Genes affected

OR13C5 (HGNC:15100): (olfactory receptor family 13 subfamily C member 5) 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]

OR13C5 links:

LOC107987105 (HGNC:):

LOC107987105 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05450046).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR13C5	NM_001004482.1 link	c.731G>T	p.Arg244Leu	missense_variant	Exon 1 of 1	ENST00000374779.3	NP_001004482.1	Q8NGS8
LOC107987105	XR_007061705.1 link	n.427+23347G>T		intron_variant	Intron 3 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR13C5	ENST00000374779.3 link	c.731G>T	p.Arg244Leu	missense_variant	Exon 1 of 1	6	NM_001004482.1	ENSP00000363911.2		Q8NGS8

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152054

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000797

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000798

AC:

AN:

250762

Hom.:

AF XY:

0.0000886

AC XY:

AN XY:

135462

show subpopulations

Gnomad AFR exome

AF:

0.000554

Gnomad AMR exome

AF:

0.000290

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:

0.000164

GnomAD4 exome

AF:

0.0000363

AC:

AN:

1461664

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

727136

show subpopulations

Gnomad4 AFR exome

AF:

0.000837

Gnomad4 AMR exome

AF:

0.000246

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.000230

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74388

show subpopulations

Gnomad4 AFR

AF:

0.000795

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Bravo

AF:

0.000257

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.731G>T (p.R244L) alteration is located in exon 1 (coding exon 1) of the OR13C5 gene. This alteration results from a G to T substitution at nucleotide position 731, causing the arginine (R) at amino acid position 244 to be replaced by a leucine (L). 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

0.15

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.011

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.50

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.0025

MetaRNN

Benign

0.055

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.0

PrimateAI

Benign

0.21

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.19

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.0010

Vest4

0.24

MVP

0.29

MPC

0.26

ClinPred

0.16

GERP RS

4.0

Varity_R

0.13

gMVP

0.17

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over