chr11-88334960-A-G

Position:

chr11-88334960-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001814.6(CTSC):c.295T>C(p.Tyr99His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CTSC
NM_001814.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.70

Variant links:

Genes affected

CTSC (HGNC:2528): (cathepsin C) This gene encodes a member of the peptidase C1 family and lysosomal cysteine proteinase that appears to be a central coordinator for activation of many serine proteinases in cells of the immune system. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate heavy and light chains that form a disulfide-linked dimer. A portion of the propeptide acts as an intramolecular chaperone for the folding and stabilization of the mature enzyme. This enzyme requires chloride ions for activity and can degrade glucagon. Defects in the encoded protein have been shown to be a cause of Papillon-Lefevre syndrome, an autosomal recessive disorder characterized by palmoplantar keratosis and periodontitis. [provided by RefSeq, Nov 2015]

CTSC links:

CTSC (HGNC:):

CTSC links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.858

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTSC	NM_001814.6 linkuse as main transcript	c.295T>C	p.Tyr99His	missense_variant	2/7	ENST00000227266.10	NP_001805.4	P53634-1
CTSC	NM_001114173.3 linkuse as main transcript	c.295T>C	p.Tyr99His	missense_variant	2/4		NP_001107645.1	P53634-3
CTSC	NM_148170.5 linkuse as main transcript	c.295T>C	p.Tyr99His	missense_variant	2/4		NP_680475.1	P53634-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTSC	ENST00000227266.10 linkuse as main transcript	c.295T>C	p.Tyr99His	missense_variant	2/7	1	NM_001814.6	ENSP00000227266.4		P53634-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460648

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726752

show subpopulations

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Papillon-Lefèvre syndrome;C1855627:Haim-Munk syndrome;C4551681:Periodontitis, aggressive 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 17, 2018

This sequence change replaces tyrosine with histidine at codon 99 of the CTSC protein (p.Tyr99His). The¬†tyrosine¬†residue is highly conserved and there is a moderate physicochemical difference between¬†tyrosine¬†and histidine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with CTSC-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; 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

0.28

BayesDel_addAF

Pathogenic

0.35

BayesDel_noAF

Pathogenic

0.27

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.64

D;.;.

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Uncertain

0.18

MetaRNN

Pathogenic

0.86

D;D;D

MetaSVM

Uncertain

0.53

MutationAssessor

Uncertain

2.5

M;M;M

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-0.69

N;N;N

REVEL

Pathogenic

0.74

Sift

Benign

0.11

T;T;T

Sift4G

Benign

0.17

T;D;D

Polyphen

0.072

B;D;.

Vest4

0.88

MutPred

0.68

Loss of stability (P = 0.0484);Loss of stability (P = 0.0484);Loss of stability (P = 0.0484);

MVP

0.93

MPC

0.16

ClinPred

0.83

GERP RS

5.8

Varity_R

0.77

gMVP

0.79

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over