Variant chr8-107901086-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_178565.5(RSPO2):c.721G>A(p.Ala241Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,306 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A241A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RSPO2
NM_178565.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.34

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 Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.053192705).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
RSPO2	NM_178565.5 linkuse as main transcript	c.721G>A	p.Ala241Thr	missense_variant	6/6	ENST00000276659.10
RSPO2	NM_001282863.2 linkuse as main transcript	c.529G>A	p.Ala177Thr	missense_variant	5/5
RSPO2	NM_001317942.2 linkuse as main transcript	c.520G>A	p.Ala174Thr	missense_variant	5/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RSPO2	ENST00000276659.10 linkuse as main transcript	c.721G>A	p.Ala241Thr	missense_variant	6/6	1	NM_178565.5	P1	Q6UXX9-1
	ENST00000665144.1 linkuse as main transcript	n.81-17084C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000400

AC:

AN:

249826

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135144

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:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461306

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726958

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

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

Dec 27, 2023

The c.721G>A (p.A241T) alteration is located in exon 6 (coding exon 5) of the RSPO2 gene. This alteration results from a G to A substitution at nucleotide position 721, causing the alanine (A) at amino acid position 241 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

Benign

0.065

BayesDel_addAF

Benign

-0.099

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

0.99

Eigen

Benign

-0.34

Eigen_PC

Benign

-0.13

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.71

T;T;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.053

T;T;T

MetaSVM

Benign

-0.75

MutationTaster

Benign

0.68

N;N;N;N

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.26

N;N;N

REVEL

Benign

0.18

Sift

Benign

0.28

T;T;T

Sift4G

Benign

0.46

T;T;T

Polyphen

0.0

.;B;B

Vest4

0.14

MVP

0.22

MPC

0.13

ClinPred

0.18

GERP RS

5.1

Varity_R

0.061

gMVP

0.33

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