X-131544299-G-C

Position:

chrX-131544299-G-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001004486.1(OR13H1):c.226G>C(p.Ala76Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000299 in 1,204,342 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 10 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.000031 ( 0 hom. 9 hem. )

Consequence

OR13H1
NM_001004486.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.482

Variant links:

Genes affected

OR13H1 (HGNC:14755): (olfactory receptor family 13 subfamily H member 1) 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]

OR13H1 links:

IGSF1 (HGNC:5948): (immunoglobulin superfamily member 1) This gene encodes a member of the immunoglobulin-like domain-containing superfamily. Proteins in this superfamily contain varying numbers of immunoglobulin-like domains and are thought to participate in the regulation of interactions between cells. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jan 2010]

IGSF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19811678).

BS2

High Hemizygotes in GnomAdExome4 at 9 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR13H1	NM_001004486.1 linkuse as main transcript	c.226G>C	p.Ala76Pro	missense_variant	1/1	ENST00000338616.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OR13H1	ENST00000338616.6 linkuse as main transcript	c.226G>C	p.Ala76Pro	missense_variant	1/1		NM_001004486.1	P1
IGSF1	ENST00000370904.6 linkuse as main transcript	c.-913+34369C>G		intron_variant		2			Q8N6C5-2

Frequencies

GnomAD3 genomes

AF:

0.0000179

AC:

AN:

111758

Hom.:

Cov.:

AF XY:

0.0000295

AC XY:

AN XY:

33920

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000376

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000164

AC:

AN:

183300

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

67790

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000367

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000311

AC:

AN:

1092584

Hom.:

Cov.:

AF XY:

0.0000251

AC XY:

AN XY:

358296

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000382

Gnomad4 OTH exome

AF:

0.0000435

GnomAD4 genome

AF:

0.0000179

AC:

AN:

111758

Hom.:

Cov.:

AF XY:

0.0000295

AC XY:

AN XY:

33920

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000376

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 31, 2023

The c.226G>C (p.A76P) alteration is located in exon 1 (coding exon 1) of the OR13H1 gene. This alteration results from a G to C substitution at nucleotide position 226, causing the alanine (A) at amino acid position 76 to be replaced by a proline (P). 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

0.30

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.014

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.60

M_CAP

Benign

0.0063

MetaRNN

Benign

0.20

MetaSVM

Benign

-0.94

MutationAssessor

Uncertain

2.3

MutationTaster

Benign

1.0

PrimateAI

Benign

0.23

PROVEAN

Benign

-2.0

REVEL

Benign

0.14

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0080

Polyphen

0.83

Vest4

0.36

MutPred

0.55

Loss of catalytic residue at A76 (P = 0.008);

MVP

0.57

MPC

0.070

ClinPred

0.13

GERP RS

1.7

Varity_R

0.72

gMVP

0.72

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