Variant chr8-107901124-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_178565.5(RSPO2):c.683C>T(p.Ala228Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000204 in 1,613,950 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

RSPO2
NM_178565.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.29

Variant links:

Genes affected

RSPO2 (HGNC:28583): (R-spondin 2) This gene encodes a member of the R-spondin family of proteins. These proteins are secreted ligands of leucine-rich repeat containing G protein-coupled receptors that enhance Wnt signaling through the inhibition of ubiquitin E3 ligases. A chromosomal translocation including this locus that results in the formation of a gene fusion has been identified in multiple human cancers. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

RSPO2 links:

(HGNC:):

links:

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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=0.10302487).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
RSPO2	NM_178565.5 linkuse as main transcript	c.683C>T	p.Ala228Val	missense_variant	6/6	ENST00000276659.10
RSPO2	NM_001282863.2 linkuse as main transcript	c.491C>T	p.Ala164Val	missense_variant	5/5
RSPO2	NM_001317942.2 linkuse as main transcript	c.482C>T	p.Ala161Val	missense_variant	5/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RSPO2	ENST00000276659.10 linkuse as main transcript	c.683C>T	p.Ala228Val	missense_variant	6/6	1	NM_178565.5	P1	Q6UXX9-1
	ENST00000665144.1 linkuse as main transcript	n.81-17046G>A		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000266

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000401

AC:

AN:

249606

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135068

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.0000868

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727210

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.0000671

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:

0.00

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74314

show subpopulations

Gnomad4 AFR

AF:

0.000266

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:

0.00

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.000110

ExAC

AF:

0.0000412

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 16, 2022

The c.683C>T (p.A228V) alteration is located in exon 6 (coding exon 5) of the RSPO2 gene. This alteration results from a C to T substitution at nucleotide position 683, causing the alanine (A) at amino acid position 228 to be replaced by a valine (V). 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

0.26

BayesDel_addAF

Benign

-0.094

BayesDel_noAF

Uncertain

-0.040

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

.;.;T;.

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.0017

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.77

T;T;T;.

M_CAP

Benign

0.034

MetaRNN

Benign

0.10

T;T;T;T

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.90

.;.;L;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.96

N;N;N;N

REVEL

Uncertain

0.32

Sift

Benign

0.22

T;T;T;T

Sift4G

Benign

0.23

T;T;T;T

Polyphen

0.0

.;B;B;.

Vest4

0.18

MVP

0.93

MPC

0.61

ClinPred

0.051

GERP RS

5.1

Varity_R

0.10

gMVP

0.39

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