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TONSL p.Leu1062=

c.3184C>T · rs367754042 · VCV1581705

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0538%, 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
ConservationphyloP 0.88GERP -3.3, phastCons 0.22
Overall
CADD6.871PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0538% Admixed American · 32/59,428 alleles
Filtering AF 0.0391% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0342%
Overall 0.0115% 184/1,605,064 alleles · ultra-rare exomes 163/1,452,726 · genomes 21/152,338 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.0538% 1,857
Middle Eastern 0.0168% 5,958
European (non-Finnish) 0.0117% 8,514
Remaining individualsnot grpmax-eligible 0.0113% 8,857
African / African-American 0.004% 24,976
Ashkenazi Jewishnot grpmax-eligible 0.00343% 29,130
Finnishnot grpmax-eligible 0.0016% 62,600
South Asian 0.00111% 90,418

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.Leu1062=
Coding
c.3184C>T
MANE Select
NM_013432
dbSNP
rs367754042
Type
single nucleotide variant
Location
chr8:144434181 (GRCh38)
Gene constraint
LOEUF 1.024 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 76.06 · 3 PDB
Residue 1062
a UniProt-annotated variant site (in semdsp; disease phenotype includes immunologic and hematologic abnormalities); a UniProt-annotated variant site (in semdsp); a UniProt-annotated variant site (in semdsp; disease phenotype includes primary aphakia and absent pupils)
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-leu1062 (accessed [today's date]).

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