chr13-41721523-G-T

Variant names:

• chr13-41721523-G-T
• NM_015058.2:c.2811C>A
• VWA8 p.Leu937Leu

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_015058.2(VWA8):​c.2811C>A​(p.Leu937Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L937L) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: VWA8 NM_015058.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.81
• Publications: 0 publications found

Genes affected

VWA8 (HGNC:29071): (von Willebrand factor A domain containing 8) Predicted to enable ATP binding activity. Located in mitochondrion and peroxisome. [provided by Alliance of Genome Resources, Apr 2022]

VWA8 Gene-Disease associations (from GenCC):

• retinitis pigmentosa 97

  Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.75).
• BP7: Synonymous conserved (PhyloP=-1.81 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015058.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VWA8	NM_015058.2	MANE Select	c.2811C>A	p.Leu937Leu	synonymous	Exon 25 of 45	NP_055873.1	A3KMH1-1
	VWA8	NM_001009814.2		c.2811C>A	p.Leu937Leu	synonymous	Exon 25 of 26	NP_001009814.1	A3KMH1-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VWA8	ENST00000379310.8	TSL:2 MANE Select	c.2811C>A	p.Leu937Leu	synonymous	Exon 25 of 45	ENSP00000368612.3	A3KMH1-1
	VWA8	ENST00000281496.6	TSL:1	c.2811C>A	p.Leu937Leu	synonymous	Exon 25 of 26	ENSP00000281496.6	A3KMH1-2
	VWA8	ENST00000938853.1		c.2811C>A	p.Leu937Leu	synonymous	Exon 25 of 45	ENSP00000608912.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	0.20
DANN	Benign	0.58
PhyloP100		-1.8

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr13-42295659;