rs1060500186
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_004064.5(CDKN1B):c.49_52del(p.Asp17ProfsTer24) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 33)
Consequence
CDKN1B
NM_004064.5 frameshift
NM_004064.5 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 8.80
Genes affected
CDKN1B (HGNC:1785): (cyclin dependent kinase inhibitor 1B) This gene encodes a cyclin-dependent kinase inhibitor, which shares a limited similarity with CDK inhibitor CDKN1A/p21. The encoded protein binds to and prevents the activation of cyclin E-CDK2 or cyclin D-CDK4 complexes, and thus controls the cell cycle progression at G1. The degradation of this protein, which is triggered by its CDK dependent phosphorylation and subsequent ubiquitination by SCF complexes, is required for the cellular transition from quiescence to the proliferative state. Mutations in this gene are associated with multiple endocrine neoplasia type IV (MEN4). [provided by RefSeq, Apr 2014]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 12 ACMG points.
PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 46 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 12-12717886-TGGAC-T is Pathogenic according to our data. Variant chr12-12717886-TGGAC-T is described in ClinVar as [Pathogenic]. Clinvar id is 404266.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CDKN1B | NM_004064.5 | c.49_52del | p.Asp17ProfsTer24 | frameshift_variant | 1/3 | ENST00000228872.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CDKN1B | ENST00000228872.9 | c.49_52del | p.Asp17ProfsTer24 | frameshift_variant | 1/3 | 1 | NM_004064.5 | P1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome Cov.: 33
GnomAD4 genome
Cov.:
33
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Multiple endocrine neoplasia type 4 Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Oct 21, 2016 | This sequence change deletes 4 nucleotides from exon 1 of the CDKN1B mRNA (c.49_52delGACG), causing a frameshift at codon 17. This creates a premature translational stop signal (p.Asp17Profs*24) and is expected to result in an absent or disrupted protein product. While this particular variant has not been reported in the literature, loss-of-function variants in CDKN1B are known to be pathogenic (PMID: 17030811, 24819502). For these reasons, this variant has been classified as Pathogenic. - |
Computational scores
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Calibrated prediction
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Prediction
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at