rs201492213

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 9P and 1B. PVS1PP5BS2_Supporting

The NM_019055.6(ROBO4):​c.1702C>T​(p.Arg568*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000057 in 1,614,084 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 Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

ROBO4
NM_019055.6 stop_gained

Scores

3
2
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 3.20
Variant links:
Genes affected
ROBO4 (HGNC:17985): (roundabout guidance receptor 4) Predicted to enable cell-cell adhesion mediator activity. Involved in angiogenesis and establishment of endothelial barrier. Located in extracellular exosome. Implicated in aortic valve disease 3. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 11-124891545-G-A is Pathogenic according to our data. Variant chr11-124891545-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 560398.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=2}. Variant chr11-124891545-G-A is described in Lovd as [Likely_pathogenic].
BS2
High AC in GnomAd4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ROBO4NM_019055.6 linkc.1702C>T p.Arg568* stop_gained Exon 12 of 18 ENST00000306534.8 NP_061928.4 Q8WZ75-1
ROBO4NM_001301088.2 linkc.1267C>T p.Arg423* stop_gained Exon 12 of 18 NP_001288017.1 Q8WZ75B4DYV8
ROBO4XM_006718861.3 linkc.1702C>T p.Arg568* stop_gained Exon 12 of 18 XP_006718924.1
ROBO4XM_011542875.2 linkc.376C>T p.Arg126* stop_gained Exon 5 of 11 XP_011541177.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ROBO4ENST00000306534.8 linkc.1702C>T p.Arg568* stop_gained Exon 12 of 18 1 NM_019055.6 ENSP00000304945.3 Q8WZ75-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152202
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000800
AC:
20
AN:
250064
Hom.:
0
AF XY:
0.0000960
AC XY:
13
AN XY:
135426
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.000169
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000595
AC:
87
AN:
1461882
Hom.:
0
Cov.:
31
AF XY:
0.0000619
AC XY:
45
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000746
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74346
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:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000776
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000988
AC:
12
EpiCase
AF:
0.000164
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Bicuspid aortic valve;C0856747:Ascending tubular aorta aneurysm Pathogenic:1
-
Baylor-Hopkins Center for Mendelian Genomics, Johns Hopkins University School of Medicine
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: research

- -

Aortic valve disease 3 Uncertain:1
-
Juno Genomics, Hangzhou Juno Genomics, Inc
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PM2_Supporting+PS4_Supporting -

ROBO4-related disorder Uncertain:1
Nov 15, 2022
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The ROBO4 c.1702C>T variant is predicted to result in premature protein termination (p.Arg568*). This variant was reported in an individual with Bicuspid aortic valve & thoracic aortic aneurysm (Gould et al 2019. PubMed ID: 30455415). This variant is reported in 0.016% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-124761441-G-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.50
CADD
Pathogenic
50
DANN
Uncertain
1.0
Eigen
Pathogenic
0.77
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Benign
0.75
D
Vest4
0.89
GERP RS
5.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs201492213; hg19: chr11-124761441; API