11-6027142-T-G

Position:

chr11-6027142-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001388488.1(OR56A1):c.551A>C(p.Asn184Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000669 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

OR56A1
NM_001388488.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.04

Variant links:

Genes affected

OR56A1 (HGNC:14781): (olfactory receptor family 56 subfamily A 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]

OR56A1 links:

LOC107984303 (HGNC:):

LOC107984303 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.38467655).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
OR56A1	NM_001388488.1 linkuse as main transcript	c.551A>C	p.Asn184Thr	missense_variant	2/2	ENST00000641900.1
LOC107984303	XR_001748102.2 linkuse as main transcript	n.89+5054T>G		intron_variant, non_coding_transcript_variant
OR56A1	NM_001001917.5 linkuse as main transcript	c.551A>C	p.Asn184Thr	missense_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Appris
OR56A1	ENST00000641900.1 linkuse as main transcript	c.551A>C	p.Asn184Thr	missense_variant	2/2	NM_001388488.1	P1
OR56A1	ENST00000641423.1 linkuse as main transcript	c.551A>C	p.Asn184Thr	missense_variant	2/2		P1
OR56A1	ENST00000641938.1 linkuse as main transcript	c.551A>C	p.Asn184Thr	missense_variant	1/1		P1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000478

AC:

AN:

251224

Hom.:

AF XY:

0.0000516

AC XY:

AN XY:

135762

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000202

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:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000664

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.0000619

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000157

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:

0.0000755

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000594

Hom.:

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

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 19, 2024

The c.563A>C (p.N188T) alteration is located in exon 1 (coding exon 1) of the OR56A1 gene. This alteration results from a A to C substitution at nucleotide position 563, causing the asparagine (N) at amino acid position 188 to be replaced by a threonine (T). 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

Uncertain

0.43

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.36

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

.;.;.;T

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.84

.;.;T;T

M_CAP

Benign

0.020

MetaRNN

Benign

0.38

T;T;T;T

MetaSVM

Benign

-0.33

MutationAssessor

Pathogenic

3.0

.;.;.;M

MutationTaster

Benign

0.51

PrimateAI

Benign

0.25

PROVEAN

Pathogenic

-5.5

.;.;.;D

REVEL

Benign

0.20

Sift

Uncertain

0.013

.;.;.;D

Sift4G

Uncertain

0.015

.;.;.;D

Polyphen

1.0

.;.;.;D

Vest4

0.46

MVP

0.53

MPC

0.26

ClinPred

0.73

GERP RS

4.3

Varity_R

0.48

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