Genetic Variant CTSD:p.Gly171Cys (chr11-1757517-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001909.5(CTSD):c.511G>T(p.Gly171Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,146 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G171S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CTSD
NM_001909.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.267

Publications

2 publications found

Variant links:

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]

CTSD Gene-Disease associations (from GenCC):

neuronal ceroid lipofuscinosis
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
neuronal ceroid lipofuscinosis 10
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Genomics England PanelApp

CTSD links:

ENSG00000250644 (HGNC:):

ENSG00000250644 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.873

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTSD	NM_001909.5 link	c.511G>T	p.Gly171Cys	missense_variant	Exon 5 of 9	ENST00000236671.7	NP_001900.1	P07339V9HWI3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CTSD	ENST00000236671.7 link	c.511G>T	p.Gly171Cys	missense_variant	Exon 5 of 9	1	NM_001909.5	ENSP00000236671.2		P07339
ENSG00000250644	ENST00000636615.1 link	c.511G>T	p.Gly171Cys	missense_variant	Exon 5 of 10	5		ENSP00000490014.1		A0A1B0GU92

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

248364

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461146

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726884

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52844

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111914

Other (OTH)

AF:

0.00

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.022

BayesDel_noAF

Benign

-0.27

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.83

.;.;D;T;.;T;.;T;.;.

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.71

T;T;T;T;T;T;T;T;T;T

M_CAP

Pathogenic

0.54

MetaRNN

Pathogenic

0.87

D;D;D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.33

MutationAssessor

Pathogenic

4.4

.;.;H;.;.;.;.;.;.;.

PhyloP100

-0.27

PrimateAI

Benign

0.34

PROVEAN

Pathogenic

-5.3

.;.;D;.;.;.;.;.;D;D

REVEL

Benign

0.23

Sift

Uncertain

0.0010

.;.;D;.;.;.;.;.;D;D

Sift4G

Pathogenic

0.0010

.;.;D;.;.;.;.;.;D;.

Polyphen

1.0

.;.;D;.;.;.;.;.;.;.

Vest4

0.35

MutPred

0.82

Loss of disorder (P = 0.0109);Loss of disorder (P = 0.0109);Loss of disorder (P = 0.0109);Loss of disorder (P = 0.0109);Loss of disorder (P = 0.0109);.;Loss of disorder (P = 0.0109);.;.;.;

MVP

0.74

MPC

1.4

ClinPred

1.0

GERP RS

-2.7

PromoterAI

-0.0075

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.87

gMVP

0.84

Mutation Taster

=88/12

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over