chr15-40898971-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020857.3(VPS18):​c.298G>A​(p.Val100Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,614,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

VPS18
NM_020857.3 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.09
Variant links:
Genes affected
VPS18 (HGNC:15972): (VPS18 core subunit of CORVET and HOPS complexes) Vesicle mediated protein sorting plays an important role in segregation of intracellular molecules into distinct organelles. Genetic studies in yeast have identified more than 40 vacuolar protein sorting (VPS) genes involved in vesicle transport to vacuoles. This gene encodes the human homolog of yeast class C Vps18 protein. The mammalian class C Vps proteins are predominantly associated with late endosomes/lysosomes, and like their yeast counterparts, may mediate vesicle trafficking steps in the endosome/lysosome pathway. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21959886).
BS2
High AC in GnomAdExome4 at 18 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
VPS18NM_020857.3 linkuse as main transcriptc.298G>A p.Val100Ile missense_variant 3/5 ENST00000220509.10 NP_065908.1 Q9P253A0A024R9R3
VPS18XM_011521843.3 linkuse as main transcriptc.82G>A p.Val28Ile missense_variant 2/4 XP_011520145.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
VPS18ENST00000220509.10 linkuse as main transcriptc.298G>A p.Val100Ile missense_variant 3/51 NM_020857.3 ENSP00000220509.5 Q9P253
VPS18ENST00000558474.1 linkuse as main transcriptc.298G>A p.Val100Ile missense_variant 3/43 ENSP00000453555.1 H0YMC9
VPS18ENST00000558855.5 linkuse as main transcriptn.*59G>A non_coding_transcript_exon_variant 4/55 ENSP00000453265.1 H0YLM6
VPS18ENST00000558855.5 linkuse as main transcriptn.*59G>A 3_prime_UTR_variant 4/55 ENSP00000453265.1 H0YLM6

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152188
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000597
AC:
15
AN:
251318
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135844
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000434
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461844
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000403
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152188
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 22, 2021The c.298G>A (p.V100I) alteration is located in exon 3 (coding exon 3) of the VPS18 gene. This alteration results from a G to A substitution at nucleotide position 298, causing the valine (V) at amino acid position 100 to be replaced by an isoleucine (I). 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
0.089
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.035
T;T
Eigen
Benign
-0.14
Eigen_PC
Benign
0.034
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.22
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.090
N;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
0.23
N;N
REVEL
Benign
0.27
Sift
Benign
0.68
T;T
Sift4G
Benign
1.0
T;D
Polyphen
0.38
B;.
Vest4
0.64
MVP
0.15
MPC
0.31
ClinPred
0.18
T
GERP RS
4.8
Varity_R
0.14
gMVP
0.22

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.

Other links and lift over

dbSNP: rs749263460; hg19: chr15-41191169; API