Genetic Variant VAPB:c.-150C>A (chr20-58389310-C-A) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_004738.5(VAPB):c.-150C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 151,848 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00011 ( 1 hom., cov: 33)

Exomes 𝑓: 0.000054 ( 1 hom. )

Failed GnomAD Quality Control

Consequence

VAPB
NM_004738.5 5_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0650

Publications

0 publications found

Variant links:

Genes affected

VAPB (HGNC:12649): (VAMP associated protein B and C) The protein encoded by this gene is a type IV membrane protein found in plasma and intracellular vesicle membranes. The encoded protein is found as a homodimer and as a heterodimer with VAPA. This protein also can interact with VAMP1 and VAMP2 and may be involved in vesicle trafficking. [provided by RefSeq, Jul 2008]

VAPB Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis type 8
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen
adult-onset proximal spinal muscular atrophy, autosomal dominant
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
amyotrophic lateral sclerosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

VAPB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BS2

High AC in GnomAd4 at 16 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004738.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
VAPB	NM_004738.5	MANE Select	c.-150C>A	5_prime_UTR	Exon 1 of 6	NP_004729.1	O95292-1
VAPB	NM_001195677.2		c.-150C>A	5_prime_UTR	Exon 1 of 3	NP_001182606.1	O95292-2
VAPB	NR_036633.2		n.82C>A	non_coding_transcript_exon	Exon 1 of 4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
VAPB	ENST00000475243.6	TSL:1 MANE Select	c.-150C>A	5_prime_UTR	Exon 1 of 6	ENSP00000417175.1	O95292-1
VAPB	ENST00000903510.1		c.-150C>A	5_prime_UTR	Exon 1 of 7	ENSP00000573569.1
VAPB	ENST00000903509.1		c.-150C>A	5_prime_UTR	Exon 1 of 5	ENSP00000573568.1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

151740

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000726

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000556

AC:

AN:

125794

AF XY:

0.0000435

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000443

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000937

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000541

AC:

AN:

572566

Hom.:

Cov.:

AF XY:

0.0000392

AC XY:

AN XY:

305968

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

12832

American (AMR)

AF:

0.0000640

AC:

AN:

31250

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17292

East Asian (EAS)

AF:

0.0000402

AC:

AN:

24900

South Asian (SAS)

AF:

0.00

AC:

AN:

62268

European-Finnish (FIN)

AF:

0.0000296

AC:

AN:

33800

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2268

European-Non Finnish (NFE)

AF:

0.0000750

AC:

AN:

359796

Other (OTH)

AF:

0.00

AC:

AN:

28160

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.656

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.000105

AC:

AN:

151848

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74266

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41444

American (AMR)

AF:

0.000131

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.000194

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10570

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000148

AC:

AN:

67792

Other (OTH)

AF:

0.00

AC:

AN:

2104

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

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:

0.00

Hom.:

Bravo

AF:

0.000128

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

(source)

DANN

Benign

0.80

PhyloP100

-0.065

PromoterAI

-0.031

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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