rs386834096

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_152564.5(VPS13B):​c.5662dupA​(p.Ile1888fs) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000744 in 1,613,812 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

VPS13B
NM_152564.5 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 4.73
Variant links:
Genes affected
VPS13B (HGNC:2183): (vacuolar protein sorting 13 homolog B) This gene encodes a potential transmembrane protein that may function in vesicle-mediated transport and sorting of proteins within the cell. This protein may play a role in the development and the function of the eye, hematological system, and central nervous system. Mutations in this gene have been associated with Cohen syndrome. Multiple splice variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 8-99642245-G-GA is Pathogenic according to our data. Variant chr8-99642245-G-GA is described in ClinVar as [Pathogenic]. Clinvar id is 56676.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
VPS13BNM_017890.5 linkc.5737dupA p.Ile1913fs frameshift_variant 34/62 ENST00000358544.7 NP_060360.3 Q7Z7G8-1
VPS13BNM_152564.5 linkc.5662dupA p.Ile1888fs frameshift_variant 34/62 ENST00000357162.7 NP_689777.3 Q7Z7G8-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
VPS13BENST00000358544.7 linkc.5737dupA p.Ile1913fs frameshift_variant 34/621 NM_017890.5 ENSP00000351346.2 Q7Z7G8-1
VPS13BENST00000357162.7 linkc.5662dupA p.Ile1888fs frameshift_variant 34/621 NM_152564.5 ENSP00000349685.2 Q7Z7G8-2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151976
Hom.:
0
Cov.:
32
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:
0.0000949
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251206
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135768
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:
0.0000924
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461836
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
727220
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:
0.000131
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151976
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74212
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:
0.0000949
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Cohen syndrome Pathogenic:2
Likely pathogenic, no assertion criteria providedliterature onlyJuha Muilu Group; Institute for Molecular Medicine Finland (FIMM)-- -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 31, 2021For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 56676). This variant is also known as c.5730_5731insA. This premature translational stop signal has been observed in individual(s) with Cohen syndrome (PMID: 15141358). This variant is present in population databases (rs757201708, ExAC 0.02%). This sequence change creates a premature translational stop signal (p.Ile1913Asnfs*7) in the VPS13B gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in VPS13B are known to be pathogenic (PMID: 15141358, 16648375, 20461111). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs386834096; hg19: chr8-100654473; API