chr7-141919044-C-G

Position:

chr7-141919044-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001001656.3(OR9A4):c.169C>G(p.Pro57Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000947 in 1,614,124 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00051 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00099 ( 1 hom. )

Consequence

OR9A4
NM_001001656.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.75

Variant links:

Genes affected

OR9A4 (HGNC:15095): (olfactory receptor family 9 subfamily A member 4) 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]

OR9A4 links:

MGAM (HGNC:7043): (maltase-glucoamylase) This gene encodes maltase-glucoamylase, which is a brush border membrane enzyme that plays a role in the final steps of digestion of starch. The protein has two catalytic sites identical to those of sucrase-isomaltase, but the proteins are only 59% homologous. Both are members of glycosyl hydrolase family 31, which has a variety of substrate specificities. [provided by RefSeq, Jul 2008]

MGAM links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07583973).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR9A4	NM_001001656.3 linkuse as main transcript	c.169C>G	p.Pro57Ala	missense_variant	2/2	ENST00000641559.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
OR9A4	ENST00000641559.1 linkuse as main transcript	c.169C>G	p.Pro57Ala	missense_variant	2/2		NM_001001656.3	P1
OR9A4	ENST00000548136.1 linkuse as main transcript	c.169C>G	p.Pro57Ala	missense_variant	1/1			P1
MGAM	ENST00000465654.5 linkuse as main transcript	c.-180+11176C>G		intron_variant		3
MGAM	ENST00000497554.1 linkuse as main transcript	n.37-10733C>G		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.000513

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000897

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000497

AC:

125

AN:

251360

Hom.:

AF XY:

0.000500

AC XY:

AN XY:

135894

show subpopulations

Gnomad AFR exome

AF:

0.000371

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000985

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000992

AC:

1450

AN:

1461876

Hom.:

Cov.:

AF XY:

0.000964

AC XY:

701

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.000131

Gnomad4 NFE exome

AF:

0.00126

Gnomad4 OTH exome

AF:

0.000596

GnomAD4 genome

AF:

0.000512

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.000551

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.000337

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000897

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000855

Hom.:

Bravo

AF:

0.000442

TwinsUK

AF:

0.00135

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000544

AC:

EpiCase

AF:

0.000872

EpiControl

AF:

0.000830

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 03, 2024

The c.169C>G (p.P57A) alteration is located in exon 1 (coding exon 1) of the OR9A4 gene. This alteration results from a C to G substitution at nucleotide position 169, causing the proline (P) at amino acid position 57 to be replaced by an alanine (A). 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

0.17

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.032

T;T

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.89

.;D

M_CAP

Benign

0.0037

MetaRNN

Benign

0.076

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.4

M;M

MutationTaster

Benign

0.85

PrimateAI

Benign

0.26

PROVEAN

Pathogenic

-7.2

.;D

REVEL

Benign

0.19

Sift

Uncertain

0.0030

.;D

Sift4G

Uncertain

0.0040

.;D

Polyphen

1.0

D;D

Vest4

0.35

MVP

0.74

MPC

0.23

ClinPred

0.15

GERP RS

3.9

Varity_R

0.25

gMVP

0.11

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