rs146892641

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP2

The NM_000552.5(VWF):​c.2332G>T​(p.Ala778Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 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. A778T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

VWF
NM_000552.5 missense

Scores

4
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.65
Variant links:
Genes affected
VWF (HGNC:12726): (von Willebrand factor) This gene encodes a glycoprotein involved in hemostasis. The encoded preproprotein is proteolytically processed following assembly into large multimeric complexes. These complexes function in the adhesion of platelets to sites of vascular injury and the transport of various proteins in the blood. Mutations in this gene result in von Willebrand disease, an inherited bleeding disorder. An unprocessed pseudogene has been found on chromosome 22. [provided by RefSeq, Oct 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a region_of_interest Amino-terminal (size 23) in uniprot entity VWF_HUMAN there are 6 pathogenic changes around while only 0 benign (100%) in NM_000552.5
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), VWF. . Gene score misZ 0.98969 (greater than the threshold 3.09). Trascript score misZ 3.5064 (greater than threshold 3.09). GenCC has associacion of gene with von Willebrand disease type 2M, hereditary von Willebrand disease, von Willebrand disease type 2B, von Willebrand disease type 2N, von Willebrand disease 2, von Willebrand disease type 2A, von Willebrand disease 3, von Willebrand disease 1.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
VWFNM_000552.5 linkuse as main transcriptc.2332G>T p.Ala778Ser missense_variant 18/52 ENST00000261405.10
VWFXM_047429501.1 linkuse as main transcriptc.2332G>T p.Ala778Ser missense_variant 18/52

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
VWFENST00000261405.10 linkuse as main transcriptc.2332G>T p.Ala778Ser missense_variant 18/521 NM_000552.5 P1P04275-1
VWFENST00000538635.5 linkuse as main transcriptn.421-50467G>T intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251322
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135850
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461884
Hom.:
0
Cov.:
35
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.29
T
Eigen
Benign
-0.068
Eigen_PC
Benign
-0.10
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.85
D
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.54
D
MetaSVM
Benign
-0.44
T
MutationAssessor
Benign
1.1
L
MutationTaster
Benign
0.57
N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
1.0
N
REVEL
Uncertain
0.29
Sift
Benign
0.17
T
Sift4G
Benign
0.15
T
Polyphen
0.82
P
Vest4
0.43
MutPred
0.53
Gain of catalytic residue at L774 (P = 0.0055);
MVP
0.61
MPC
0.65
ClinPred
0.71
D
GERP RS
3.3
Varity_R
0.11
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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.

Other links and lift over

dbSNP: rs146892641; hg19: chr12-6153567; API