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rs74315420

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP3_ModeratePP5

The NM_001029871.4(RSPO4):c.194A>G(p.Gln65Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000353 in 1,614,114 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 Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

RSPO4
NM_001029871.4 missense

Scores

9
9
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.53
Variant links:
Genes affected
RSPO4 (HGNC:16175): (R-spondin 4) This gene encodes a member of the R-spondin family of proteins that share a common domain organization consisting of a signal peptide, cysteine-rich/furin-like domain, thrombospondin domain and a C-terminal basic region. The encoded protein may be involved in activation of Wnt/beta-catenin signaling pathways. Mutations in this gene are associated with anonychia congenital. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 2 uncertain in NM_001029871.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.894
PP5
Variant 20-968024-T-C is Pathogenic according to our data. Variant chr20-968024-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 1190.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr20-968024-T-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RSPO4NM_001029871.4 linkuse as main transcriptc.194A>G p.Gln65Arg missense_variant 2/5 ENST00000217260.9
RSPO4NM_001040007.3 linkuse as main transcriptc.194A>G p.Gln65Arg missense_variant 2/4
RSPO4XM_017027839.2 linkuse as main transcriptc.194A>G p.Gln65Arg missense_variant 2/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RSPO4ENST00000217260.9 linkuse as main transcriptc.194A>G p.Gln65Arg missense_variant 2/51 NM_001029871.4 P1Q2I0M5-1
RSPO4ENST00000400634.2 linkuse as main transcriptc.194A>G p.Gln65Arg missense_variant 2/41 Q2I0M5-2

Frequencies

GnomAD3 genomes
AF:
0.0000985
AC:
15
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00122
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000882
AC:
22
AN:
249444
Hom.:
0
AF XY:
0.0000665
AC XY:
9
AN XY:
135380
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:
0.000882
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000287
AC:
42
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.0000261
AC XY:
19
AN XY:
727244
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:
0.000637
Gnomad4 NFE exome
AF:
0.00000629
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000985
AC:
15
AN:
152240
Hom.:
0
Cov.:
33
AF XY:
0.000161
AC XY:
12
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00122
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000642
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000661
AC:
8

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Anonychia Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 01, 2006- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.94
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.37
Cadd
Pathogenic
29
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D;.
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.89
D;D
MetaSVM
Uncertain
0.70
D
MutationAssessor
Pathogenic
3.2
M;M
MutationTaster
Benign
0.96
A;A
PrimateAI
Uncertain
0.61
T
PROVEAN
Uncertain
-3.5
D;D
REVEL
Pathogenic
0.79
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.015
D;D
Polyphen
1.0
D;D
Vest4
0.95
MutPred
0.87
Gain of MoRF binding (P = 0.0352);Gain of MoRF binding (P = 0.0352);
MVP
0.84
MPC
0.35
ClinPred
0.59
D
GERP RS
5.1
Varity_R
0.68
gMVP
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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.

Other links and lift over

dbSNP: rs74315420; hg19: chr20-948667; API