rs754279676

Positions:

• chr3-77098047-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001395656.1(ROBO2):​c.95G>A​(p.Arg32Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000139 in 1,434,408 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ROBO2 NM_001395656.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1
• Conservation: PhyloP100: 10.0

Genes affected

ROBO2 (HGNC:10250): (roundabout guidance receptor 2) The protein encoded by this gene belongs to the ROBO family, part of the immunoglobulin superfamily of proteins that are highly conserved from fly to human. The encoded protein is a transmembrane receptor for the slit homolog 2 protein and functions in axon guidance and cell migration. Mutations in this gene are associated with vesicoureteral reflux, characterized by the backward flow of urine from the bladder into the ureters or the kidney. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ROBO2	NM_001395656.1	c.95G>A	p.Arg32Gln	missense_variant	2/28	ENST00000696593.1	NP_001382585.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ROBO2	ENST00000696593.1	c.95G>A	p.Arg32Gln	missense_variant	2/28		NM_001395656.1	ENSP00000512738	A2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000139 AC: 2 AN: 1434408 Hom.: 0 Cov.: 31 AF XY: 0.00000282 AC XY: 2 AN XY: 708284

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: 0.00000183

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Pathogenic:1

Likely pathogenic, no assertion criteria provided

research

Gharavi Laboratory, Columbia University

Sep 16, 2018

- -

Congenital anomaly of kidney and urinary tract Uncertain:1

Uncertain significance, criteria provided, single submitter

curation

Institute of Human Genetics, University of Leipzig Medical Center

Jan 09, 2021

This ROBO2 variant was reported as Likely pathogenic​ in PMID: 30586318 with original nomenclature reported as p.R32Q. Variant was re-classified as Uncertain Significance based on the criteria PM1_Moderate, PM2_Supporting. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.0
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.38	.;.;T;.
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D;D;D;D
M_CAP	Benign	0.073	D
MetaRNN	Uncertain	0.73	D;D;D;D
MetaSVM	Benign	-0.46	T
MutationAssessor	Benign	1.2	.;.;L;.
PrimateAI	Uncertain	0.77	T
PROVEAN	Uncertain	-2.8	D;.;D;D
REVEL	Uncertain	0.34
Sift	Uncertain	0.024	D;.;D;D
Sift4G	Uncertain	0.0030	D;D;D;D
Polyphen		1.0, 0.99	.;.;D;D
Vest4		0.82
MVP		0.78
MPC		0.26
ClinPred		0.95	D
GERP RS		5.1
Varity_R		0.50
gMVP		0.70

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs754279676; hg19: chr3-77147198; COSMIC: COSV59922580;