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TONSL p.Gly404=

c.1212C>T · rs770180642 · VCV1002540

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0117%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP -11GERP -3.9
Overall
CADD0.059PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0117% European (non-Finnish) · 138/1,177,156 alleles
Filtering AF 0.0101% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0095%
Overall 0.00939% 151/1,608,398 alleles · ultra-rare exomes 143/1,456,210 · genomes 8/152,188 · joint denominator
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.0117% 8,530
African / African-American 0.00936% 10,689
South Asian 0.0033% 30,307
Remaining individualsnot grpmax-eligible 0.00321% 31,110
East Asian 0.00223% 44,748

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.Gly404=
Coding
c.1212C>T
MANE Select
NM_013432
dbSNP
rs770180642
Type
single nucleotide variant
Location
chr8:144440429 (GRCh38)
Gene constraint
LOEUF 1.024 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 76.06 · 3 PDB
Residue 404
a UniProt-annotated variant site (in semdsp; disease phenotype includes immunologic and hematologic abnormalities); a UniProt-annotated variant site (in semdsp)
Full TONSL gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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-gly404 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown