11-88335088-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_001814.6(CTSC):​c.173-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0265 in 1,115,146 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0081 ( 0 hom., cov: 26)
Exomes 𝑓: 0.026 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CTSC
NM_001814.6 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00004712
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.26
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 11-88335088-G-A is Benign according to our data. Variant chr11-88335088-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 466226.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-88335088-G-A is described in Lovd as [Benign].
BA1
GnomAdExome4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0887 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CTSCNM_001814.6 linkuse as main transcriptc.173-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000227266.10 NP_001805.4
CTSCNM_001114173.3 linkuse as main transcriptc.173-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NP_001107645.1
CTSCNM_148170.5 linkuse as main transcriptc.173-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NP_680475.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CTSCENST00000227266.10 linkuse as main transcriptc.173-6C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_001814.6 ENSP00000227266 P1P53634-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
864
AN:
107132
Hom.:
0
Cov.:
26
FAILED QC
Gnomad AFR
AF:
0.00527
Gnomad AMI
AF:
0.0125
Gnomad AMR
AF:
0.00584
Gnomad ASJ
AF:
0.00203
Gnomad EAS
AF:
0.00535
Gnomad SAS
AF:
0.00229
Gnomad FIN
AF:
0.0382
Gnomad MID
AF:
0.00526
Gnomad NFE
AF:
0.00719
Gnomad OTH
AF:
0.00563
GnomAD4 exome
AF:
0.0265
AC:
29518
AN:
1115146
Hom.:
0
Cov.:
22
AF XY:
0.0311
AC XY:
17515
AN XY:
562334
show subpopulations
Gnomad4 AFR exome
AF:
0.0274
Gnomad4 AMR exome
AF:
0.0913
Gnomad4 ASJ exome
AF:
0.0570
Gnomad4 EAS exome
AF:
0.0347
Gnomad4 SAS exome
AF:
0.0696
Gnomad4 FIN exome
AF:
0.0962
Gnomad4 NFE exome
AF:
0.0153
Gnomad4 OTH exome
AF:
0.0206
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00812
AC:
870
AN:
107170
Hom.:
0
Cov.:
26
AF XY:
0.00894
AC XY:
462
AN XY:
51654
show subpopulations
Gnomad4 AFR
AF:
0.00533
Gnomad4 AMR
AF:
0.00583
Gnomad4 ASJ
AF:
0.00203
Gnomad4 EAS
AF:
0.00563
Gnomad4 SAS
AF:
0.00288
Gnomad4 FIN
AF:
0.0382
Gnomad4 NFE
AF:
0.00720
Gnomad4 OTH
AF:
0.00630
Alfa
AF:
0.0140
Hom.:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Papillon-Lefèvre syndrome;C1855627:Haim-Munk syndrome;C4551681:Periodontitis, aggressive 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 08, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
2.2
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000047
dbscSNV1_RF
Benign
0.0
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.

Other links and lift over

dbSNP: rs201763299; hg19: chr11-88068256; COSMIC: COSV57056754; API