ITPR3 p.Ser66=
c.198G>A · rs142283170 · VCV3055735
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.105%, afr)
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 -6.2 | GERP -4.4 |
| Overall | ||
| CADD | 4.756 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.105%
African / African-American · 79/74,990 alleles
Filtering AF
0.0866%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0797%
Overall
0.00731%
118/1,614,000 alleles · rare
exomes 76/1,461,842 · genomes 42/152,158 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.105% | 949 |
| Admixed American | 0.025% | 4,001 |
| Remaining individualsnot grpmax-eligible | 0.0176% | 5,682 |
| South Asian | 0.00988% | 10,118 |
| Finnishnot grpmax-eligible | 0.00156% | 63,976 |
| European (non-Finnish) | 0.000254% | 393,334 |
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
- ITPR3
- Protein
- p.Ser66=
- Coding
- c.198G>A
- MANE Select
- NM_002224
- dbSNP
- rs142283170
- Type
- single nucleotide variant
- Location
- chr6:33655803 (GRCh38)
- Gene constraint
- LOEUF 0.67 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 74.04 · 24 PDB
- Residue 66
- an α-helix
Similar variants
- ITPR3 p.Thr1424Met Pathogenic/Likely pathogenic ★★ ⚠ same type
- ITPR3 p.Ala1352Thr Uncertain significance ★★ ⚠ same type
- ITPR3 p.Arg1085Leu Uncertain significance ★★ ⚠ same type
- ITPR3 p.Arg2659Cys Uncertain significance ★★ ⚠ same type
- ITPR3 p.Asp1968Val Uncertain significance ★★ ⚠ same type
- ITPR3 p.Glu669Asp Uncertain significance ★★ ⚠ same type
- ITPR3 p.Gly1008Trp Uncertain significance ★★ ⚠ same type
- ITPR3 p.Gly2514Glu 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/itpr3-p-ser66 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown