chr11-1763796-C-A

Position:

• chr11-1763796-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001909.5(CTSD):​c.64G>T​(p.Val22Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CTSD NM_001909.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -2.40

Genes affected

CTSD (HGNC:2529): (cathepsin D) This gene encodes a member of the A1 family of peptidases. The encoded preproprotein is proteolytically processed to generate multiple protein products. These products include the cathepsin D light and heavy chains, which heterodimerize to form the mature enzyme. This enzyme exhibits pepsin-like activity and plays a role in protein turnover and in the proteolytic activation of hormones and growth factors. Mutations in this gene play a causal role in neuronal ceroid lipofuscinosis-10 and may be involved in the pathogenesis of several other diseases, including breast cancer and possibly Alzheimer's disease. [provided by RefSeq, Nov 2015]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CTSD	NM_001909.5	c.64G>T	p.Val22Phe	missense_variant	1/9	ENST00000236671.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CTSD	ENST00000236671.7	c.64G>T	p.Val22Phe	missense_variant	1/9	1	NM_001909.5	P2
	ENST00000446489.1			upstream_gene_variant		3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1373350 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 677848

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Neuronal ceroid lipofuscinosis Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 18, 2022

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. 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: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 409625). This variant has not been reported in the literature in individuals affected with CTSD-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces valine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 22 of the CTSD protein (p.Val22Phe). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	4.0
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.51	.;.;D;T;.;T;.;T
Eigen	Benign	-0.98
Eigen_PC	Benign	-1.2
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.79	T;T;T;T;T;T;T;T
M_CAP	Pathogenic	0.52	D
MetaRNN	Uncertain	0.54	D;D;D;D;D;D;D;D
MetaSVM	Benign	-0.90	T
MutationAssessor	Benign	1.4	.;.;L;.;.;.;.;.
MutationTaster	Benign	0.99	N
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-2.2	.;.;N;.;.;.;.;.
REVEL	Benign	0.28
Sift	Benign	0.19	.;.;T;.;.;.;.;.
Sift4G	Benign	0.69	.;.;T;.;.;.;.;.
Polyphen		0.89	.;.;P;.;.;.;.;.
Vest4		0.20
MutPred		0.74		Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);Loss of stability (P = 0.0382);
MVP		0.22
MPC		1.4
ClinPred		0.68	D
GERP RS		-5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.055
gMVP		0.62

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

Other links and lift over

dbSNP: rs1060502503; hg19: chr11-1785026;