FECH p.Leu4=
c.12C>T · VCV4701146
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00298%, nfe)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 0.86 | GERP 0.36, phastCons 0.005 |
| Overall | ||
| CADD | 10.51 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00298%
European (non-Finnish) · 34/1,141,586 alleles
Filtering AF
0.00214%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00189%
Overall
0.0023%
35/1,522,132 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.00298% | 33,576 |
| Remaining individualsnot grpmax-eligible | 0.00169% | 59,296 |
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
- FECH
- Protein
- p.Leu4=
- Coding
- c.12C>T
- MANE Select
- NM_000140
- Type
- single nucleotide variant
- Location
- chr18:57586609 (GRCh38)
- Gene constraint
- LOEUF 0.859 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 87.37 · 25 PDB
Similar variants
- FECH p.Leu4Phe Uncertain significance ★★ ⚠ same residue
- FECH c.1137+3A>G Pathogenic/Likely pathogenic ★★ same type
- FECH c.314+2T>G Pathogenic/Likely pathogenic ★★ same type
- FECH c.463+1G>C Pathogenic ★★ same type
- FECH c.598+1G>T Pathogenic ★★ same type
- FECH c.599-2A>G Pathogenic ★★ same type
- FECH c.913-2A>G Likely pathogenic ★★ same type
- FECH p.Arg115Ter Pathogenic/Likely 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/fech-p-leu4 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown