MFN2 p.Pro201=
c.603T>C · VCV4752833
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0165%, mid)
Conditions
1
Charcot-Marie-Tooth disease type 2
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -1.2 | GERP -5.7, phastCons 0.001 |
| Overall | ||
| CADD | 8.698 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0165%
Middle Eastern · 1/6,062 alleles
Overall
0.000124%
2/1,614,078 alleles · ultra-rare
exomes 2/1,461,808 · genomes 0/152,270 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.0165% | 6,062 |
| European (non-Finnish) | 8.48e-05% | 1,179,935 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- MFN2
- Protein
- p.Pro201=
- Coding
- c.603T>C
- MANE Select
- NM_014874
- Type
- single nucleotide variant
- Location
- chr1:11998773 (GRCh38)
- Gene constraint
- LOEUF 0.602 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 81.94 · 3 PDB
- Residue 201
- the 'g3 motif' region; an α-helix; the dynamin-type g domain
Similar variants
- MFN2 p.Pro201Ser Uncertain significance ★★ ⚠ same residue
- MFN2 c.1160+1G>A Likely pathogenic ★★ same condition
- MFN2 c.475-1G>C Pathogenic ★★ same condition
- MFN2 p.Ala166Val Pathogenic/Likely pathogenic ★★ ⚠ same condition
- MFN2 p.Ala220Thr Pathogenic/Likely pathogenic ★★ same condition
- MFN2 p.Ala383Val Pathogenic/Likely pathogenic ★★ ⚠ same condition
- MFN2 p.Ala738Val Pathogenic/Likely pathogenic ★★ ⚠ same condition
- MFN2 p.Arg104Trp Pathogenic ★★ same condition
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/mfn2-p-pro201 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown