DEF6 p.Leu378=
c.1134G>A · rs1395496034 · VCV3019364
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00197%, amr)
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 3.2 | GERP -1.4, phastCons 1 |
| Overall | ||
| CADD | 11.44 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00197%
Admixed American · 1/50,744 alleles
Overall
0.00013%
2/1,534,846 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00197% | 50,744 |
| Remaining individualsnot grpmax-eligible | 0.00168% | 59,648 |
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
- DEF6
- Protein
- p.Leu378=
- Coding
- c.1134G>A
- MANE Select
- NM_022047
- dbSNP
- rs1395496034
- Type
- single nucleotide variant
- Location
- chr6:35318390 (GRCh38)
- Gene constraint
- LOEUF 0.61 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 78.91
- Residue 378
- a UniProt-annotated variant site (in imd87; protein not detected in homozygous patient t cells or when the mutant is expressed in a heterologous system)
Similar variants
- DEF6 p.Ala395Glu Uncertain significance ★★ ⚠ same type
- DEF6 p.Ala617Val Uncertain significance ★★ ⚠ same type
- DEF6 p.Arg104Pro Uncertain significance ★★ ⚠ same type
- DEF6 p.Arg104Trp Uncertain significance ★★ ⚠ same type
- DEF6 p.Arg192Cys Uncertain significance ★★ ⚠ same type
- DEF6 p.Arg195Gln Uncertain significance ★★ ⚠ same type
- DEF6 p.Arg349Leu Uncertain significance ★★ ⚠ same type
- DEF6 p.Arg4Cys Uncertain significance ★★ ⚠ 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/def6-p-leu378 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown