chr8-99778960-G-A

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_017890.5(VPS13B):​c.7783G>A​(p.Asp2595Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000221 in 1,613,910 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

VPS13B
NM_017890.5 missense

Scores

1
9
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:3B:7

Conservation

PhyloP100: 8.94

Publications

1 publications found
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]
VPS13B Gene-Disease associations (from GenCC):
  • Cohen syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Laboratory for Molecular Medicine, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00878191).
BP6
Variant 8-99778960-G-A is Benign according to our data. Variant chr8-99778960-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 95868.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017890.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
VPS13B
NM_017890.5
MANE Plus Clinical
c.7783G>Ap.Asp2595Asn
missense
Exon 42 of 62NP_060360.3
VPS13B
NM_152564.5
MANE Select
c.7708G>Ap.Asp2570Asn
missense
Exon 42 of 62NP_689777.3

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
VPS13B
ENST00000358544.7
TSL:1 MANE Plus Clinical
c.7783G>Ap.Asp2595Asn
missense
Exon 42 of 62ENSP00000351346.2
VPS13B
ENST00000357162.7
TSL:1 MANE Select
c.7708G>Ap.Asp2570Asn
missense
Exon 42 of 62ENSP00000349685.2
VPS13B
ENST00000682153.1
n.7783G>A
non_coding_transcript_exon
Exon 42 of 62ENSP00000507923.1

Frequencies

GnomAD3 genomes
AF:
0.00106
AC:
162
AN:
152178
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00345
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.000395
AC:
99
AN:
250724
AF XY:
0.000273
show subpopulations
Gnomad AFR exome
AF:
0.00504
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000129
AC:
188
AN:
1461614
Hom.:
0
Cov.:
31
AF XY:
0.000102
AC XY:
74
AN XY:
727126
show subpopulations
African (AFR)
AF:
0.00424
AC:
142
AN:
33462
American (AMR)
AF:
0.000380
AC:
17
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39672
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86224
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1111860
Other (OTH)
AF:
0.000265
AC:
16
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
12
23
35
46
58
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00111
AC:
169
AN:
152296
Hom.:
2
Cov.:
32
AF XY:
0.00101
AC XY:
75
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.00361
AC:
150
AN:
41560
American (AMR)
AF:
0.000654
AC:
10
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68014
Other (OTH)
AF:
0.00189
AC:
4
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000631
Hom.:
1
Bravo
AF:
0.00146
ESP6500AA
AF:
0.00363
AC:
16
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000469
AC:
57
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
1
3
Cohen syndrome (5)
-
1
1
not provided (2)
-
1
1
not specified (2)
-
-
1
Inborn genetic diseases (1)
-
-
1
VPS13B-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.41
T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.0088
T
MetaSVM
Benign
-0.44
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
8.9
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-2.7
D
REVEL
Uncertain
0.41
Sift
Benign
0.32
T
Sift4G
Uncertain
0.0030
D
Polyphen
0.74
P
Vest4
0.47
MVP
0.80
MPC
0.32
ClinPred
0.049
T
GERP RS
5.6
Varity_R
0.15
gMVP
0.56
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs140179844; hg19: chr8-100791188; API