Genetic Variant NM_017890.5:c.5576C>G (chr8-99642091-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_017890.5(VPS13B):c.5576C>G(p.Ser1859Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1859L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

VPS13B
NM_017890.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.212

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

VPS13B links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.29811543).

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	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VPS13B	NM_017890.5	MANE Plus Clinical	c.5576C>G	p.Ser1859Trp	missense	Exon 34 of 62	NP_060360.3
	VPS13B	NM_152564.5	MANE Select	c.5501C>G	p.Ser1834Trp	missense	Exon 34 of 62	NP_689777.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
VPS13B	ENST00000358544.7	TSL:1 MANE Plus Clinical	c.5576C>G	p.Ser1859Trp	missense	Exon 34 of 62	ENSP00000351346.2
VPS13B	ENST00000357162.7	TSL:1 MANE Select	c.5501C>G	p.Ser1834Trp	missense	Exon 34 of 62	ENSP00000349685.2
VPS13B	ENST00000682153.1		n.5576C>G		non_coding_transcript_exon	Exon 34 of 62	ENSP00000507923.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74306

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41434

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10592

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.057

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.11

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.50

FATHMM_MKL

Benign

0.29

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.046

MetaRNN

Benign

0.30

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.0

PhyloP100

0.21

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.9

REVEL

Benign

0.14

Sift

Benign

0.095

Sift4G

Benign

0.13

Polyphen

0.97

Vest4

0.54

MutPred

0.28

Loss of disorder (P = 0.0014)

MVP

0.62

MPC

0.52

ClinPred

0.35

GERP RS

0.15

Varity_R

0.042

gMVP

0.29

Mutation Taster

=93/7

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over