Genetic Variant RTP2:p.Ala52Thr (chr3-187701975-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001004312.2(RTP2):c.154G>A(p.Ala52Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000015 in 1,597,892 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

RTP2
NM_001004312.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.33

Variant links:

Genes affected

RTP2 (HGNC:32486): (receptor transporter protein 2) Enables olfactory receptor binding activity. Involved in protein insertion into membrane. Located in cell surface. [provided by Alliance of Genome Resources, Apr 2022]

RTP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RTP2	NM_001004312.2 link	c.154G>A	p.Ala52Thr	missense_variant	Exon 1 of 2	ENST00000358241.1	NP_001004312.2	Q5QGT7
RTP2	XM_017006301.2 link	c.154G>A	p.Ala52Thr	missense_variant	Exon 4 of 5		XP_016861790.1	Q5QGT7
RTP2	XM_017006302.2 link	c.154G>A	p.Ala52Thr	missense_variant	Exon 4 of 5		XP_016861791.1	Q5QGT7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RTP2	ENST00000358241.1 link	c.154G>A	p.Ala52Thr	missense_variant	Exon 1 of 2	1	NM_001004312.2	ENSP00000350976.1		Q5QGT7

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152198

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000251

AC:

AN:

239486

Hom.:

AF XY:

0.0000233

AC XY:

AN XY:

128962

show subpopulations

Gnomad AFR exome

AF:

0.000125

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:

0.0000279

Gnomad OTH exome

AF:

0.000173

GnomAD4 exome

AF:

0.0000131

AC:

AN:

1445576

Hom.:

Cov.:

AF XY:

0.0000126

AC XY:

AN XY:

717080

show subpopulations

Gnomad4 AFR exome

AF:

0.0000604

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000120

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000118

Gnomad4 OTH exome

AF:

0.0000335

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152316

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74486

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000325

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 02, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.154G>A (p.A52T) alteration is located in exon 1 (coding exon 1) of the RTP2 gene. This alteration results from a G to A substitution at nucleotide position 154, causing the alanine (A) at amino acid position 52 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

0.55

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.088

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.0084

MetaRNN

Uncertain

0.57

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

PrimateAI

Uncertain

0.51

PROVEAN

Benign

0.10

REVEL

Benign

0.15

Sift

Benign

0.33

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.66

MVP

0.10

MPC

0.30

ClinPred

0.23

GERP RS

4.6

Varity_R

0.14

gMVP

0.52

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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