Genetic Variant VPS35L:p.Gln730* (chr16-19652057-C-T) – ACMG Classification: Pathogenic (10 pts)

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_020314.7(VPS35L):c.2188C>T(p.Gln730*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000116 in 1,611,434 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

VPS35L
NM_020314.7 stop_gained

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.68

Variant links:

Genes affected

VPS35L (HGNC:24641): (VPS35 endosomal protein sorting factor like) Involved in Golgi to plasma membrane transport and endocytic recycling. Located in endosome. Implicated in Ritscher-Schinzel syndrome. [provided by Alliance of Genome Resources, Apr 2022]

VPS35L links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VPS35L	NM_020314.7 link	c.2188C>T	p.Gln730*	stop_gained	Exon 26 of 31	ENST00000417362.7	NP_064710.5	Q7Z3J2-1E7EWW0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VPS35L	ENST00000417362.7 link	c.2188C>T	p.Gln730*	stop_gained	Exon 26 of 31	1	NM_020314.7	ENSP00000395973.3		Q7Z3J2-1

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000565

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000323

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000101

AC:

AN:

247110

Hom.:

AF XY:

0.000150

AC XY:

AN XY:

133280

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:

0.00

Gnomad FIN exome

AF:

0.000420

Gnomad NFE exome

AF:

0.000143

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000109

AC:

159

AN:

1459212

Hom.:

Cov.:

AF XY:

0.000124

AC XY:

AN XY:

725608

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000394

Gnomad4 NFE exome

AF:

0.000117

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000184

AC:

AN:

152222

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000565

Gnomad4 NFE

AF:

0.000323

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000195

Hom.:

Bravo

AF:

0.000128

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000115

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 22, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2455C>T (p.Q819*) alteration, located in exon 26 (coding exon 26) of the VPS35L gene, consists of a C to T substitution at nucleotide position 2455. This changes the amino acid from a glutamine (Q) to a stop codon at amino acid position 819. This alteration is expected to result in premature protein truncation or nonsense-mediated mRNA decay. However, loss of function of VPS35L has not been established as a mechanism of disease. Based on data from gnomAD, the T allele has an overall frequency of 0.012% (34/278516) total alleles studied. The highest observed frequency was 0.048% (12/24920) of European (Finnish) alleles. 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

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.66

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

1.2

Eigen_PC

Pathogenic

1.1

FATHMM_MKL

Pathogenic

0.98

Vest4

0.48

GERP RS

6.0

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