NM_022370.4:c.354G>A

Variant names:

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_022370.4(ROBO3):c.354G>A(p.Leu118Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00122 in 1,598,954 control chromosomes in the GnomAD database, including 35 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0024 ( 6 hom., cov: 32)

Exomes 𝑓: 0.0011 ( 29 hom. )

Consequence

ROBO3
NM_022370.4 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.433

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]

ROBO3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.47).

BP6

Variant 11-124868995-G-A is Benign according to our data. Variant chr11-124868995-G-A is described in ClinVar as [Benign]. Clinvar id is 758454.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.433 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0024 (365/152338) while in subpopulation NFE AF= 0.000368 (25/68022). AF 95% confidence interval is 0.000255. There are 6 homozygotes in gnomad4. There are 268 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ROBO3	NM_022370.4 link	c.354G>A	p.Leu118Leu	synonymous_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
ROBO3	ENST00000397801.6 link	c.354G>A	p.Leu118Leu	synonymous_variant	Exon 2 of 28	1	NM_022370.4	ENSP00000380903.1		Q96MS0-1
ROBO3	ENST00000538940.5 link	c.288G>A	p.Leu96Leu	synonymous_variant	Exon 1 of 27	5		ENSP00000441797.1		F5GWJ5

Frequencies

GnomAD3 genomes

AF:

0.00240

AC:

365

AN:

152220

Hom.:

Cov.:

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:

0.0320

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000367

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00292

AC:

617

AN:

211662

Hom.:

AF XY:

0.00272

AC XY:

316

AN XY:

116254

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:

0.0301

Gnomad NFE exome

AF:

0.000487

Gnomad OTH exome

AF:

0.00205

GnomAD4 exome

AF:

0.00109

AC:

1582

AN:

1446616

Hom.:

Cov.:

AF XY:

0.00112

AC XY:

801

AN XY:

718304

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:

0.0285

Gnomad4 NFE exome

AF:

0.0000651

Gnomad4 OTH exome

AF:

0.000971

GnomAD4 genome

AF:

0.00240

AC:

365

AN:

152338

Hom.:

Cov.:

AF XY:

0.00360

AC XY:

268

AN XY:

74500

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:

0.0320

Gnomad4 NFE

AF:

0.000368

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000771

Hom.:

Bravo

AF:

0.000132

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Jul 10, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

ROBO3-related disorder

Benign:1

Feb 24, 2020

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Benign

0.96

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