chr8-99818837-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_152564.5(VPS13B):c.8570C>T(p.Pro2857Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000809 in 1,613,770 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00071 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00082 ( 4 hom. )

Consequence

VPS13B
NM_152564.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:10

Conservation

PhyloP100: 7.69

Publications

9 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: ClinGen, Myriad Women’s Health, Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp

VPS13B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0082497895).

BP6

Variant 8-99818837-C-T is Benign according to our data. Variant chr8-99818837-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 95872.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00082 (1198/1461754) while in subpopulation MID AF = 0.00711 (41/5766). AF 95% confidence interval is 0.00539. There are 4 homozygotes in GnomAdExome4. There are 622 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 4 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152564.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VPS13B	NM_017890.5	MANE Plus Clinical	c.8645C>T	p.Pro2882Leu	missense	Exon 47 of 62	NP_060360.3
	VPS13B	NM_152564.5	MANE Select	c.8570C>T	p.Pro2857Leu	missense	Exon 47 of 62	NP_689777.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
VPS13B	ENST00000358544.7	TSL:1 MANE Plus Clinical	c.8645C>T	p.Pro2882Leu	missense	Exon 47 of 62	ENSP00000351346.2	Q7Z7G8-1
VPS13B	ENST00000357162.7	TSL:1 MANE Select	c.8570C>T	p.Pro2857Leu	missense	Exon 47 of 62	ENSP00000349685.2	Q7Z7G8-2
VPS13B	ENST00000682153.1		n.8645C>T		non_coding_transcript_exon	Exon 47 of 62	ENSP00000507923.1	A0A804HKG9

Frequencies

GnomAD3 genomes

AF:

0.000711

AC:

108

AN:

151898

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.0127

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.0000946

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000691

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.00117

AC:

293

AN:

250574

AF XY:

0.00116

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000232

Gnomad ASJ exome

AF:

0.0139

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000955

Gnomad OTH exome

AF:

0.00147

GnomAD4 exome

AF:

0.000820

AC:

1198

AN:

1461754

Hom.:

Cov.:

AF XY:

0.000855

AC XY:

622

AN XY:

727174

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33476

American (AMR)

AF:

0.000291

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.0129

AC:

337

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39676

South Asian (SAS)

AF:

0.000846

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00711

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000581

AC:

646

AN:

1111930

Other (OTH)

AF:

0.00136

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

130

196

261

326

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

112

140

<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:

0.000710

AC:

108

AN:

152016

Hom.:

Cov.:

AF XY:

0.000686

AC XY:

AN XY:

74324

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41458

American (AMR)

AF:

0.000197

AC:

AN:

15238

Ashkenazi Jewish (ASJ)

AF:

0.0127

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.000208

AC:

AN:

4806

European-Finnish (FIN)

AF:

0.0000946

AC:

AN:

10566

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000691

AC:

AN:

67988

Other (OTH)

AF:

0.00142

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00141

Hom.:

Bravo

AF:

0.000790

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00105

AC:

ExAC

AF:

0.000947

AC:

115

EpiCase

AF:

0.000763

EpiControl

AF:

0.00190

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cohen syndrome (7)

not specified (4)

not provided (2)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.26

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.22

Eigen

Benign

0.027

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.041

MetaRNN

Benign

0.0082

MetaSVM

Benign

-0.82

MutationAssessor

Benign

1.6

PhyloP100

7.7

PrimateAI

Benign

0.37

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.15

Sift

Benign

0.060

Sift4G

Uncertain

0.026

Polyphen

0.078

Vest4

0.39

MVP

0.72

MPC

0.41

ClinPred

0.051

GERP RS

5.1

Varity_R

0.21

gMVP

0.48

Mutation Taster

=58/42

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over