Genetic Variant OR1L3:p.Ser67Phe (chr9-122675329-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001005234.1(OR1L3):c.200C>T(p.Ser67Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000923 in 1,614,212 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000097 ( 3 hom. )

Consequence

OR1L3
NM_001005234.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33

Variant links:

Genes affected

OR1L3 (HGNC:8215): (olfactory receptor family 1 subfamily L 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]

OR1L3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.057015896).

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR1L3	NM_001005234.1 link	c.200C>T	p.Ser67Phe	missense_variant	Exon 1 of 1	ENST00000304820.5	NP_001005234.1	Q8NH93A0A126GVD1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR1L3	ENST00000304820.5 link	c.200C>T	p.Ser67Phe	missense_variant	Exon 1 of 1	6	NM_001005234.1	ENSP00000302863.2		Q8NH93

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000163

AC:

AN:

251040

Hom.:

AF XY:

0.000236

AC XY:

AN XY:

135670

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000882

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000705

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000971

AC:

142

AN:

1461868

Hom.:

Cov.:

AF XY:

0.000136

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000459

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74494

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000164

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.000181

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 19, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.200C>T (p.S67F) alteration is located in exon 1 (coding exon 1) of the OR1L3 gene. This alteration results from a C to T substitution at nucleotide position 200, causing the serine (S) at amino acid position 67 to be replaced by a phenylalanine (F). 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

0.26

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0094

Eigen

Benign

-0.072

Eigen_PC

Benign

-0.10

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.77

M_CAP

Benign

0.0037

MetaRNN

Benign

0.057

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.5

PrimateAI

Benign

0.37

PROVEAN

Pathogenic

-5.0

REVEL

Benign

0.13

Sift

Uncertain

0.0060

Sift4G

Pathogenic

0.0

Polyphen

0.13

Vest4

0.36

MutPred

0.58

Loss of catalytic residue at L63 (P = 0.253);

MVP

0.65

MPC

0.044

ClinPred

0.15

GERP RS

3.6

Varity_R

0.66

gMVP

0.60

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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