Genetic Variant VPS33B:p.Glu500Lys (chr15-91000573-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_018668.5(VPS33B):c.1498G>A(p.Glu500Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,612,740 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

VPS33B
NM_018668.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.30

Publications

2 publications found

Variant links:

Genes affected

VPS33B (HGNC:12712): (VPS33B late endosome and lysosome associated) Vesicle mediated protein sorting plays an important role in segregation of intracellular molecules into distinct organelles. Genetic studies in yeast have identified more than 40 vacuolar protein sorting (VPS) genes involved in vesicle transport to vacuoles. This gene is a member of the Sec-1 domain family, and encodes the human ortholog of rat Vps33b which is homologous to the yeast class C Vps33 protein. The mammalian class C vacuolar protein sorting proteins are predominantly associated with late endosomes/lysosomes, and like their yeast counterparts, may mediate vesicle trafficking steps in the endosome/lysosome pathway. Mutations in this gene are associated with arthrogryposis-renal dysfunction-cholestasis syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

VPS33B links:

ENSG00000284946 (HGNC:):

ENSG00000284946 links:

VPS33B-DT (HGNC:51413): (VPS33B divergent transcript)

VPS33B-DT links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018668.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
VPS33B	NM_018668.5	MANE Select	c.1498G>A	p.Glu500Lys	missense	Exon 20 of 23	NP_061138.3
VPS33B	NM_001289148.1		c.1417G>A	p.Glu473Lys	missense	Exon 19 of 22	NP_001276077.1	B7Z1N4
VPS33B	NM_001289149.1		c.1225G>A	p.Glu409Lys	missense	Exon 19 of 22	NP_001276078.1	Q9H267-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
VPS33B	ENST00000333371.8	TSL:1 MANE Select	c.1498G>A	p.Glu500Lys	missense	Exon 20 of 23	ENSP00000327650.4	Q9H267-1
ENSG00000284946	ENST00000643536.1		n.1498G>A		non_coding_transcript_exon	Exon 20 of 35	ENSP00000494429.1	A0A2R8YDQ0
VPS33B	ENST00000853125.1		c.1513G>A	p.Glu505Lys	missense	Exon 20 of 23	ENSP00000523184.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251294

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000110

AC:

AN:

1460690

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

726634

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33456

American (AMR)

AF:

0.0000447

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26096

East Asian (EAS)

AF:

0.00

AC:

AN:

39624

South Asian (SAS)

AF:

0.00

AC:

AN:

86220

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53214

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000990

AC:

AN:

1111290

Other (OTH)

AF:

0.0000332

AC:

AN:

60324

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.459

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74260

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41416

American (AMR)

AF:

0.000131

AC:

AN:

15240

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2082

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.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

0.060

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.55

Eigen

Benign

0.080

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.021

MetaRNN

Uncertain

0.44

MetaSVM

Benign

-0.54

MutationAssessor

Uncertain

2.8

PhyloP100

5.3

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.44

Sift

Benign

0.033

Sift4G

Benign

0.093

Polyphen

0.0030

Vest4

0.57

MutPred

0.70

Gain of MoRF binding (P = 0.0084)

MVP

0.70

MPC

0.18

ClinPred

0.92

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.44

gMVP

0.55

Mutation Taster

=70/30

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over