rs1555607621
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PVS1PM2PP3_ModeratePP5
The NM_004859.4(CLTC):c.4575dup(p.Glu1526ArgfsTer18) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 31)
Consequence
CLTC
NM_004859.4 frameshift
NM_004859.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: -0.238
Genes affected
CLTC (HGNC:2092): (clathrin heavy chain) Clathrin is a major protein component of the cytoplasmic face of intracellular organelles, called coated vesicles and coated pits. These specialized organelles are involved in the intracellular trafficking of receptors and endocytosis of a variety of macromolecules. The basic subunit of the clathrin coat is composed of three heavy chains and three light chains. [provided by RefSeq, Jul 2008]
PTRH2 (HGNC:24265): (peptidyl-tRNA hydrolase 2) The protein encoded by this gene is a mitochondrial protein with two putative domains, an N-terminal mitochondrial localization sequence, and a UPF0099 domain. In vitro assays suggest that this protein possesses peptidyl-tRNA hydrolase activity, to release the peptidyl moiety from tRNA, thereby preventing the accumulation of dissociated peptidyl-tRNA that could reduce the efficiency of translation. This protein also plays a role regulating cell survival and death. It promotes survival as part of an integrin-signaling pathway for cells attached to the extracellular matrix (ECM), but also promotes apoptosis in cells that have lost their attachment to the ECM, a process called anoikos. After loss of cell attachment to the ECM, this protein is phosphorylated, is released from the mitochondria into the cytosol, and promotes caspase-independent apoptosis through interactions with transcriptional regulators. This gene has been implicated in the development and progression of tumors, and mutations in this gene have been associated with an infantile multisystem neurologic, endocrine, and pancreatic disease (INMEPD) characterized by intellectual disability, postnatal microcephaly, progressive cerebellar atrophy, hearing impairment, polyneuropathy, failure to thrive, and organ fibrosis with exocrine pancreas insufficiency (PMID: 25574476). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2015]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 13 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
?
Variant 17-59685195-T-TA is Pathogenic according to our data. Variant chr17-59685195-T-TA is described in ClinVar as [Pathogenic]. Clinvar id is 488416.Status of the report is no_assertion_criteria_provided, 0 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CLTC | NM_004859.4 | c.4575dup | p.Glu1526ArgfsTer18 | frameshift_variant | 29/32 | ENST00000269122.8 | |
CLTC | NM_001288653.2 | c.4587dup | p.Glu1530ArgfsTer18 | frameshift_variant | 29/32 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CLTC | ENST00000269122.8 | c.4575dup | p.Glu1526ArgfsTer18 | frameshift_variant | 29/32 | 1 | NM_004859.4 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 31
GnomAD3 genomes
?
Cov.:
31
GnomAD4 exome Cov.: 34
GnomAD4 exome
Cov.:
34
GnomAD4 genome ? Cov.: 31
GnomAD4 genome
?
Cov.:
31
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Intellectual disability, autosomal dominant 56 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Oct 20, 2021 | - - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
Splicing
Name
Calibrated prediction
Score
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SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DG_spliceai
Position offset: -2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at