CTNS p.Phe142del
c.425_427del · rs1178364162 · VCV551859
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00333%, amr)
Conditions
3
juvenile nephropathic cystinosis
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not looked up on this page · why |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 7.6 | GERP 1.7, phastCons 1 |
| Overall | ||
| CADD | 19.02 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00333%
Admixed American · 2/60,008 alleles
Filtering AF
0.000553%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000207%
Overall
0.000186%
3/1,614,072 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00333% | 30,004 |
| European (non-Finnish) | 8.47e-05% | 1,180,044 |
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
- CTNS
- Protein
- p.Phe142del
- Coding
- c.425_427del
- dbSNP
- rs1178364162
- Type
- Deletion
- Location
- chr17:3655314 (GRCh38)
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/ctns-p-phe142del (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown