Variant 17-74941802-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001272005.2(OTOP3):c.429G>C(p.Trp143Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000901 in 1,608,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000094 ( 0 hom. )

Consequence

OTOP3
NM_001272005.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.94

Variant links:

Genes affected

OTOP3 (HGNC:19658): (otopetrin 3) Predicted to enable proton channel activity. Predicted to be involved in proton transmembrane transport. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

OTOP3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.85

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OTOP3	NM_001272005.2 linkuse as main transcript	c.429G>C	p.Trp143Cys	missense_variant	2/7	ENST00000328801.6	NP_001258934.1	Q7RTS5A0A2U3TZI1
OTOP3	NM_178233.2 linkuse as main transcript	c.483G>C	p.Trp161Cys	missense_variant	2/7		NP_839947.1	Q7RTS5
OTOP3	XM_011524744.3 linkuse as main transcript	c.396G>C	p.Trp132Cys	missense_variant	2/7		XP_011523046.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OTOP3	ENST00000328801.6 linkuse as main transcript	c.429G>C	p.Trp143Cys	missense_variant	2/7	2	NM_001272005.2	ENSP00000328090.5		A0A2U3TZI1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000937

AC:

AN:

245478

Hom.:

AF XY:

0.0000901

AC XY:

AN XY:

133244

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:

0.000199

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.0000941

AC:

137

AN:

1456632

Hom.:

Cov.:

AF XY:

0.0000870

AC XY:

AN XY:

723968

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:

0.0000190

Gnomad4 NFE exome

AF:

0.000119

Gnomad4 OTH exome

AF:

0.0000665

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000136

Hom.:

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000741

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

Sep 28, 2021

The c.483G>C (p.W161C) alteration is located in exon 2 (coding exon 2) of the OTOP3 gene. This alteration results from a G to C substitution at nucleotide position 483, causing the tryptophan (W) at amino acid position 161 to be replaced by a cysteine (C). 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

Pathogenic

0.87

BayesDel_addAF

Uncertain

0.036

BayesDel_noAF

Uncertain

0.10

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

.;T

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.89

D;D

M_CAP

Uncertain

0.26

MetaRNN

Pathogenic

0.85

D;D

MetaSVM

Benign

-0.93

MutationAssessor

Uncertain

2.9

.;M

PrimateAI

Uncertain

0.74

REVEL

Uncertain

0.58

Polyphen

1.0

.;D

MutPred

0.93

.;Gain of methylation at R163 (P = 0.0299);

MVP

0.35

MPC

0.26

ClinPred

0.99

GERP RS

4.4

Varity_R

0.68

gMVP

0.69

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