chr15-61854888-C-A

Position:

• chr15-61854888-C-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_020821.3(VPS13C):​c.11143G>T​(p.Asp3715Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00142 in 1,613,262 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0010 (1 hom., cov: 32)
  • Exomes 𝑓: 0.0015 (4 hom.)
• Consequence: VPS13C NM_020821.3 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:1
• Conservation: PhyloP100: 2.13

Genes affected

VPS13C (HGNC:23594): (vacuolar protein sorting 13 homolog C) Involved in mitochondrion organization and negative regulation of parkin-mediated stimulation of mitophagy in response to mitochondrial depolarization. Located in cytosol and mitochondrial outer membrane. Implicated in Parkinson's disease 23. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.010256767).
• BP6: Variant 15-61854888-C-A is Benign according to our data. Variant chr15-61854888-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1515129.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00101 (154/152278) while in subpopulation NFE AF= 0.00168 (114/68020). AF 95% confidence interval is 0.00143. There are 1 homozygotes in gnomad4. There are 66 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VPS13C	NM_020821.3	c.11143G>T	p.Asp3715Tyr	missense_variant	84/85	ENST00000644861.2
LOC124903501	XR_007064668.1	n.159+5416C>A		intron_variant, non_coding_transcript_variant
VPS13C	NM_017684.5	c.11014G>T	p.Asp3672Tyr	missense_variant	82/83

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VPS13C	ENST00000644861.2	c.11143G>T	p.Asp3715Tyr	missense_variant	84/85		NM_020821.3	P3
	ENST00000642740.1	n.172+5416C>A		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes AF: 0.00101 AC: 154 AN: 152160 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.000362

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00131

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: 0.00168

Gnomad OTH AF: 0.00239

GnomAD3 exomes AF: 0.000959 AC: 240 AN: 250382 Hom.: 1 AF XY: 0.00111 AC XY: 150 AN XY: 135338

Gnomad AFR exome AF: 0.000308

Gnomad AMR exome AF: 0.00166

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000463

Gnomad NFE exome AF: 0.00150

Gnomad OTH exome AF: 0.00115

GnomAD4 exome AF: 0.00147 AC: 2141 AN: 1460984 Hom.: 4 Cov.: 31 AF XY: 0.00144 AC XY: 1050 AN XY: 726786

Gnomad4 AFR exome AF: 0.000120

Gnomad4 AMR exome AF: 0.00173

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000375

Gnomad4 NFE exome AF: 0.00178

Gnomad4 OTH exome AF: 0.00126

GnomAD4 genome AF: 0.00101 AC: 154 AN: 152278 Hom.: 1 Cov.: 32 AF XY: 0.000886 AC XY: 66 AN XY: 74468

Gnomad4 AFR AF: 0.000361

Gnomad4 AMR AF: 0.00131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00168

Gnomad4 OTH AF: 0.00237

Alfa AF: 0.00140 Hom.: 0

Bravo AF: 0.00113

TwinsUK AF: 0.000809 AC: 3

ALSPAC AF: 0.00208 AC: 8

ESP6500AA AF: 0.000454 AC: 2

ESP6500EA AF: 0.00140 AC: 12

ExAC AF: 0.000832 AC: 101

EpiCase AF: 0.00125

EpiControl AF: 0.00184

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:2 Benign:1

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Nov 01, 2022	VPS13C: BP4 -
Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Feb 22, 2023	BP4 -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Aug 21, 2022	This sequence change replaces aspartic acid, which is acidic and polar, with tyrosine, which is neutral and polar, at codon 3715 of the VPS13C protein (p.Asp3715Tyr). This variant is present in population databases (rs62007358, gnomAD 0.2%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with VPS13C-related conditions. ClinVar contains an entry for this variant (Variation ID: 1515129). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.11
CADD	Benign	19
DANN	Uncertain	0.98
DEOGEN2	Benign	0.20	T;.;T
Eigen	Benign	0.17
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Benign	0.83	.;T;T
M_CAP	Benign	0.056	D
MetaRNN	Benign	0.010	T;T;T
MetaSVM	Benign	-0.68	T
MutationAssessor	Uncertain	2.7	M;.;M
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.46	T
PROVEAN	Uncertain	-3.6	.;D;D
REVEL	Benign	0.21
Sift	Uncertain	0.0020	.;D;D
Polyphen		0.28	B;P;B
Vest4		0.62, 0.65
MVP		0.64
MPC		0.15
ClinPred		0.063	T
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.43
gMVP		0.66

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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

Other links and lift over

dbSNP: rs62007358; hg19: chr15-62147087;