dbSNP rs587780916: CTSD:p.Ser144Ser (chr11-1759008-C-G) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_001909.5(CTSD):c.432G>C(p.Ser144Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S144S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000023 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CTSD
NM_001909.5 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -4.50

Publications

0 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: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (REVEL=0.016).

BP7

Synonymous conserved (PhyloP=-4.5 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTSD	NM_001909.5 link	c.432G>C	p.Ser144Ser	synonymous_variant	Exon 4 of 9	ENST00000236671.7	NP_001900.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CTSD	ENST00000236671.7 link	c.432G>C	p.Ser144Ser	synonymous_variant	Exon 4 of 9	1	NM_001909.5	ENSP00000236671.2
ENSG00000250644	ENST00000636615.1 link	c.432G>C	p.Ser144Ser	synonymous_variant	Exon 4 of 10	5		ENSP00000490014.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.000679

AC:

169

AN:

248890

AF XY:

0.000437

show subpopulations

Gnomad AFR exome

AF:

0.000627

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.00176

Gnomad FIN exome

AF:

0.00210

Gnomad NFE exome

AF:

0.000615

Gnomad OTH exome

AF:

0.00116

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000233

AC:

AN:

1460618

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

726662

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000299

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.000495

AC:

AN:

52530

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111764

Other (OTH)

AF:

0.0000498

AC:

AN:

60292

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.241

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

BayesDel_noAF

Benign

-0.65

CADD

Benign

0.44

(source)

DANN

Benign

0.80

PhyloP100

-4.5

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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