TONSL p.Ala136=
c.408C>G · rs776854925 · VCV1640118
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00584%, 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 2.4 | GERP 0.23, phastCons 1 |
| Overall | ||
| CADD | 11.62 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00584%
European (non-Finnish) · 67/1,146,992 alleles
Filtering AF
0.00467%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00429%
Overall
0.00451%
70/1,550,666 alleles · very rare
exomes 64/1,398,406 · genomes 6/152,260 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.00584% | 17,119 |
| African / African-American | 0.00274% | 36,531 |
| Remaining individualsnot grpmax-eligible | 0.00166% | 60,116 |
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
- TONSL
- Protein
- p.Ala136=
- Coding
- c.408C>G
- MANE Select
- NM_013432
- dbSNP
- rs776854925
- Type
- single nucleotide variant
- Location
- chr8:144443178 (GRCh38)
- Gene constraint
- LOEUF 1.024 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 76.06 · 3 PDB
- Residue 136
- a UniProt-annotated variant site (in semdsp; disease phenotype includes immunologic and hematologic abnormalities)
Similar variants
- TONSL c.1891-1G>C Pathogenic/Likely pathogenic ★★ same type
- TONSL p.Arg875Ter Pathogenic/Likely pathogenic ★★ same type
- TONSL p.Arg934Trp Pathogenic ★★ ⚠ same type
- TONSL p.Gln177Ter Pathogenic/Likely pathogenic ★★ same type
- TONSL p.Gln511Ter Pathogenic/Likely pathogenic ★★ same type
- TONSL p.Glu487Lys Pathogenic/Likely pathogenic ★★ ⚠ same type
- TONSL c.2775+5G>T Uncertain significance ★★ same type
- TONSL p.Ala1053Ser 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/tonsl-p-ala136 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown