CCM2 p.Glu208Ter
c.622G>T · VCV3370770
Pathogenic
Single submitter
Classification
Pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
nonsense (stop-gain)
predicted LoF
gnomAD v4.1
Absent
absent from gnomAD v4.1
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Consequence | nonsense (stop-gain) | predicted loss-of-function |
|---|---|---|
| NMD | predicted | premature termination codon in exon 6 of 10 |
| REVEL | 0.772 | pathogenic-leaning |
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 9.7 | GERP 1.6, phastCons 1 |
| Overall | ||
| CADD | 43.0 | PHRED · no single calibrated threshold — expert panels disagree |
Predicted loss-of-function is descriptive, not an applied PVS1 code.
Population frequency
gnomAD v4.1 · exomes + genomes
Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.
Variant & gene context
- Gene
- CCM2
- Protein
- p.Glu208Ter
- Coding
- c.622G>T
- MANE Select
- NM_031443
- Type
- single nucleotide variant
- Location
- chr7:45069838 (GRCh38)
- Gene constraint
- LOEUF 0.753 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 67.48 · 8 PDB
- Residue 208
- the pid domain; an α-helix
Similar variants
- CCM2 c.289-1G>A Pathogenic/Likely pathogenic ★★ same type
- CCM2 c.30+1G>A Pathogenic ★★ same type
- CCM2 c.472+1G>C Pathogenic/Likely pathogenic ★★ same type
- CCM2 c.473-1G>T Pathogenic ★★ same type
- CCM2 c.745+1G>T Pathogenic ★★ same type
- CCM2 p.Arg19Ter Pathogenic ★★ same type
- CCM2 p.Arg57Ter Pathogenic/Likely pathogenic ★★ same type
- CCM2 p.Gln107Ter Pathogenic ★★ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/ccm2-p-glu208ter (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown