Genetic Variant NM_178565.5:c.683C>T (chr8-107901124-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_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. 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

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

tetraamelia syndrome 2
Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P
tetraamelia-multiple malformations syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

RSPO2 links:

ENSG00000287949 (HGNC:):

ENSG00000287949 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10302487).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_178565.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RSPO2	NM_178565.5	MANE Select	c.683C>T	p.Ala228Val	missense	Exon 6 of 6	NP_848660.3
RSPO2	NM_001282863.2		c.491C>T	p.Ala164Val	missense	Exon 5 of 5	NP_001269792.1	Q6UXX9-3
RSPO2	NM_001317942.2		c.482C>T	p.Ala161Val	missense	Exon 5 of 5	NP_001304871.1	Q6UXX9-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RSPO2	ENST00000276659.10	TSL:1 MANE Select	c.683C>T	p.Ala228Val	missense	Exon 6 of 6	ENSP00000276659.5	Q6UXX9-1
RSPO2	ENST00000517781.5	TSL:1	c.491C>T	p.Ala164Val	missense	Exon 5 of 5	ENSP00000427937.1	Q6UXX9-3
RSPO2	ENST00000517939.5	TSL:1	c.482C>T	p.Ala161Val	missense	Exon 5 of 5	ENSP00000428940.1	Q6UXX9-2

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

GnomAD2 exomes

AF:

0.0000401

AC:

AN:

249606

AF XY:

0.0000296

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 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

African (AFR)

AF:

0.000448

AC:

AN:

33478

American (AMR)

AF:

0.0000671

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111962

Other (OTH)

AF:

0.0000497

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74314

show subpopulations

African (AFR)

AF:

0.000266

AC:

AN:

41416

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68024

Other (OTH)

AF:

0.000478

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.438

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.000110

ExAC

AF:

0.0000412

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.094

BayesDel_noAF

Uncertain

-0.040

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.0017

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.77

M_CAP

Benign

0.034

MetaRNN

Benign

0.10

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.90

PhyloP100

3.3

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.96

REVEL

Uncertain

0.32

Sift

Benign

0.22

Sift4G

Benign

0.23

Polyphen

0.0

Vest4

0.18

MVP

0.93

MPC

0.61

ClinPred

0.051

GERP RS

5.1

Varity_R

0.10

gMVP

0.39

Mutation Taster

=53/47

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over