Genetic Variant NM_001039500.3:c.446C>T (chr1-20314475-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001039500.3(VWA5B1):c.446C>T(p.Ser149Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000445 in 1,551,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

VWA5B1
NM_001039500.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.19

Variant links:

Genes affected

VWA5B1 (HGNC:26538): (von Willebrand factor A domain containing 5B1) Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

VWA5B1 links:

ENSG00000226664 (HGNC:):

ENSG00000226664 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.23344103).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VWA5B1	NM_001039500.3 link	c.446C>T	p.Ser149Leu	missense_variant	Exon 4 of 22	ENST00000289815.13	NP_001034589.2	Q5TIE3-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VWA5B1	ENST00000289815.13 link	c.446C>T	p.Ser149Leu	missense_variant	Exon 4 of 22	5	NM_001039500.3	ENSP00000289815.9		Q5TIE3-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152172

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:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000765

AC:

AN:

156898

Hom.:

AF XY:

0.0000361

AC XY:

AN XY:

83104

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000365

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000439

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000329

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000457

AC:

AN:

1399488

Hom.:

Cov.:

AF XY:

0.0000406

AC XY:

AN XY:

690252

show subpopulations

Gnomad4 AFR exome

AF:

0.0000316

Gnomad4 AMR exome

AF:

0.000336

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000406

Gnomad4 NFE exome

AF:

0.0000454

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152290

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.0000965

Hom.:

Bravo

AF:

0.0000945

ExAC

AF:

0.0000366

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 18, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.446C>T (p.S149L) alteration is located in exon 4 (coding exon 3) of the VWA5B1 gene. This alteration results from a C to T substitution at nucleotide position 446, causing the serine (S) at amino acid position 149 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.098

BayesDel_addAF

Benign

-0.086

BayesDel_noAF

Uncertain

-0.060

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.051

T;.

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.92

D;D

M_CAP

Benign

0.028

MetaRNN

Benign

0.23

T;T

MetaSVM

Benign

-1.2

MutationAssessor

Benign

1.8

L;L

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-3.1

D;D

REVEL

Benign

0.28

Sift

Benign

0.23

T;T

Sift4G

Benign

0.49

T;T

Polyphen

1.0

D;D

Vest4

0.81

MVP

0.14

ClinPred

0.52

GERP RS

5.6

Varity_R

0.35

gMVP

0.66

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over