3-78614806-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002941.4(ROBO1):​c.4283-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.406 in 1,543,268 control chromosomes in the GnomAD database, including 129,111 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.37 ( 11037 hom., cov: 29)
Exomes 𝑓: 0.41 ( 118074 hom. )

Consequence

ROBO1
NM_002941.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00003322
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.360
Variant links:
Genes affected
ROBO1 (HGNC:10249): (roundabout guidance receptor 1) Bilateral symmetric nervous systems have special midline structures that establish a partition between the two mirror image halves. Some axons project toward and across the midline in response to long-range chemoattractants emanating from the midline. The product of this gene is a member of the immunoglobulin gene superfamily and encodes an integral membrane protein that functions in axon guidance and neuronal precursor cell migration. This receptor is activated by SLIT-family proteins, resulting in a repulsive effect on glioma cell guidance in the developing brain. A related gene is located at an adjacent region on chromosome 3. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 3-78614806-G-A is Benign according to our data. Variant chr3-78614806-G-A is described in ClinVar as [Benign]. Clinvar id is 1642377.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.491 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ROBO1NM_002941.4 linkuse as main transcriptc.4283-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000464233.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ROBO1ENST00000464233.6 linkuse as main transcriptc.4283-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_002941.4 P3Q9Y6N7-1

Frequencies

GnomAD3 genomes
AF:
0.373
AC:
54878
AN:
147056
Hom.:
11036
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.212
Gnomad AMI
AF:
0.549
Gnomad AMR
AF:
0.500
Gnomad ASJ
AF:
0.445
Gnomad EAS
AF:
0.326
Gnomad SAS
AF:
0.434
Gnomad FIN
AF:
0.487
Gnomad MID
AF:
0.424
Gnomad NFE
AF:
0.416
Gnomad OTH
AF:
0.400
GnomAD3 exomes
AF:
0.454
AC:
80681
AN:
177654
Hom.:
17536
AF XY:
0.453
AC XY:
43496
AN XY:
96102
show subpopulations
Gnomad AFR exome
AF:
0.244
Gnomad AMR exome
AF:
0.596
Gnomad ASJ exome
AF:
0.470
Gnomad EAS exome
AF:
0.360
Gnomad SAS exome
AF:
0.458
Gnomad FIN exome
AF:
0.493
Gnomad NFE exome
AF:
0.441
Gnomad OTH exome
AF:
0.450
GnomAD4 exome
AF:
0.410
AC:
571734
AN:
1396124
Hom.:
118074
Cov.:
34
AF XY:
0.411
AC XY:
284078
AN XY:
691988
show subpopulations
Gnomad4 AFR exome
AF:
0.205
Gnomad4 AMR exome
AF:
0.562
Gnomad4 ASJ exome
AF:
0.451
Gnomad4 EAS exome
AF:
0.291
Gnomad4 SAS exome
AF:
0.432
Gnomad4 FIN exome
AF:
0.465
Gnomad4 NFE exome
AF:
0.410
Gnomad4 OTH exome
AF:
0.406
GnomAD4 genome
AF:
0.373
AC:
54888
AN:
147144
Hom.:
11037
Cov.:
29
AF XY:
0.380
AC XY:
27149
AN XY:
71536
show subpopulations
Gnomad4 AFR
AF:
0.212
Gnomad4 AMR
AF:
0.501
Gnomad4 ASJ
AF:
0.445
Gnomad4 EAS
AF:
0.325
Gnomad4 SAS
AF:
0.434
Gnomad4 FIN
AF:
0.487
Gnomad4 NFE
AF:
0.416
Gnomad4 OTH
AF:
0.399
Alfa
AF:
0.409
Hom.:
25242
Bravo
AF:
0.361
Asia WGS
AF:
0.366
AC:
1260
AN:
3442

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
1.2
DANN
Benign
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000033
dbscSNV1_RF
Benign
0.012
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.

Other links and lift over

dbSNP: rs1027832; hg19: chr3-78663956; API