rs777244046

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_022370.4(ROBO3):​c.391G>A​(p.Gly131Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000069 in 1,449,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ROBO3
NM_022370.4 missense

Scores

8
5
6

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.74
Variant links:
Genes affected
ROBO3 (HGNC:13433): (roundabout guidance receptor 3) This gene is a member of the Roundabout (ROBO) gene family that controls neurite outgrowth, growth cone guidance, and axon fasciculation. ROBO proteins are a subfamily of the immunoglobulin transmembrane receptor superfamily. SLIT proteins 1-3, a family of secreted chemorepellants, are ligands for ROBO proteins and SLIT/ROBO interactions regulate myogenesis, leukocyte migration, kidney morphogenesis, angiogenesis, and vasculogenesis in addition to neurogenesis. This gene, ROBO3, has a putative extracellular domain with five immunoglobulin (Ig)-like loops and three fibronectin (Fn) type III motifs, a transmembrane segment, and a cytoplasmic tail with three conserved signaling motifs: CC0, CC2, and CC3 (CC for conserved cytoplasmic). Unlike other ROBO family members, ROBO3 lacks motif CC1. The ROBO3 gene regulates axonal navigation at the ventral midline of the neural tube. In mouse, loss of Robo3 results in a complete failure of commissural axons to cross the midline throughout the spinal cord and the hindbrain. Mutations ROBO3 result in horizontal gaze palsy with progressive scoliosis (HGPPS); an autosomal recessive disorder characterized by congenital absence of horizontal gaze, progressive scoliosis, and failure of the corticospinal and somatosensory axon tracts to cross the midline in the medulla. [provided by RefSeq, May 2019]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.756

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ROBO3NM_022370.4 linkc.391G>A p.Gly131Arg missense_variant Exon 2 of 28 ENST00000397801.6 NP_071765.2 Q96MS0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ROBO3ENST00000397801.6 linkc.391G>A p.Gly131Arg missense_variant Exon 2 of 28 1 NM_022370.4 ENSP00000380903.1 Q96MS0-1
ROBO3ENST00000538940.5 linkc.325G>A p.Gly109Arg missense_variant Exon 1 of 27 5 ENSP00000441797.1 F5GWJ5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.90e-7
AC:
1
AN:
1449886
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
720114
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:
0.00
Gnomad4 NFE exome
AF:
9.03e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.79
BayesDel_addAF
Uncertain
0.072
D
BayesDel_noAF
Benign
-0.13
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.35
T;.
Eigen
Uncertain
0.65
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Benign
0.054
D
MetaRNN
Pathogenic
0.76
D;D
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
-0.14
N;.
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-6.4
D;D
REVEL
Uncertain
0.51
Sift
Uncertain
0.014
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;.
Vest4
0.76
MutPred
0.70
Gain of MoRF binding (P = 0.0078);.;
MVP
0.70
MPC
2.2
ClinPred
1.0
D
GERP RS
5.0
Varity_R
0.68
gMVP
0.90

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: rs777244046; hg19: chr11-124738928; API