LRRC8A p.Ser198=
c.594A>G · VCV4755201
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00167%, amr)
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 -8 | GERP -3.8 |
| Overall | ||
| CADD | 0.087 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00167%
Admixed American · 1/59,978 alleles
Overall
0.00031%
5/1,613,834 alleles · very rare
exomes 5/1,461,488 · genomes 0/152,346 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00167% | 59,978 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,500 |
| African / African-American | 0.00133% | 75,056 |
| South Asian | 0.0011% | 91,040 |
| European (non-Finnish) | 8.48e-05% | 1,179,898 |
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
- LRRC8A
- Protein
- p.Ser198=
- Coding
- c.594A>G
- MANE Select
- NM_019594
- Type
- single nucleotide variant
- Location
- chr9:128907758 (GRCh38)
- Gene constraint
- LOEUF 0.614 · pLI 0.06 (gnomAD)
- Structure
- AlphaFold pLDDT 85.52 · 13 PDB
Similar variants
- LRRC8A p.Ser198Leu Uncertain significance ★ ⚠ same residue
- LRRC8A p.Ala497Val Uncertain significance ★★ ⚠ same type
- LRRC8A p.Arg148His Uncertain significance ★★ ⚠ same type
- LRRC8A p.Arg214Gln Uncertain significance ★★ ⚠ same type
- LRRC8A p.Arg218Gln Uncertain significance ★★ ⚠ same type
- LRRC8A p.Arg218Trp Uncertain significance ★★ ⚠ same type
- LRRC8A p.Arg262Cys Uncertain significance ★★ ⚠ same type
- LRRC8A p.Arg496Gln 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/lrrc8a-p-ser198 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown