rs190686229
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Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The ENST00000258781.11(CCM2):c.1054+12C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00421 in 1,610,342 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0024 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0044 ( 18 hom. )
Consequence
CCM2
ENST00000258781.11 intron
ENST00000258781.11 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.296
Genes affected
CCM2 (HGNC:21708): (CCM2 scaffold protein) This gene encodes a scaffold protein that functions in the stress-activated p38 Mitogen-activated protein kinase (MAPK) signaling cascade. The protein interacts with SMAD specific E3 ubiquitin protein ligase 1 (also known as SMURF1) via a phosphotyrosine binding domain to promote RhoA degradation. The protein is required for normal cytoskeletal structure, cell-cell interactions, and lumen formation in endothelial cells. Mutations in this gene result in cerebral cavernous malformations. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Nov 2009]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 7-45074420-C-T is Benign according to our data. Variant chr7-45074420-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 261964.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-45074420-C-T is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0024 (366/152318) while in subpopulation NFE AF= 0.00429 (292/68016). AF 95% confidence interval is 0.00389. There are 0 homozygotes in gnomad4. There are 156 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 366 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CCM2 | NM_031443.4 | c.1054+12C>T | intron_variant | ENST00000258781.11 | NP_113631.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CCM2 | ENST00000258781.11 | c.1054+12C>T | intron_variant | 1 | NM_031443.4 | ENSP00000258781 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00240 AC: 366AN: 152200Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.00256 AC: 628AN: 245106Hom.: 0 AF XY: 0.00279 AC XY: 371AN XY: 132912
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GnomAD4 exome AF: 0.00440 AC: 6412AN: 1458024Hom.: 18 Cov.: 30 AF XY: 0.00433 AC XY: 3140AN XY: 725196
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GnomAD4 genome AF: 0.00240 AC: 366AN: 152318Hom.: 0 Cov.: 33 AF XY: 0.00209 AC XY: 156AN XY: 74488
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:3
Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 27, 2017 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
not provided Benign:2
Likely benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Likely benign, criteria provided, single submitter | clinical testing | Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics | Sep 25, 2017 | - - |
Cerebral cavernous malformation 2 Benign:1
Benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 25, 2024 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at