INTS1 p.Ile1884=
c.5652C>T · VCV4894927
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0316%, eas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -4.6 | GERP -2.8 |
| Overall | ||
| CADD | 0.614 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0316%
East Asian · 14/44,360 alleles
Filtering AF
0.019%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0152%
Overall
0.00119%
19/1,599,256 alleles · ultra-rare
exomes 16/1,447,052 · genomes 3/152,204 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0316% | 3,169 |
| African / African-American | 0.00134% | 74,372 |
| South Asian | 0.00111% | 90,432 |
| European (non-Finnish) | 0.000255% | 391,487 |
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
- INTS1
- Protein
- p.Ile1884=
- Coding
- c.5652C>T
- MANE Select
- NM_001080453
- Type
- single nucleotide variant
- Location
- chr7:1474345 (GRCh38)
- Gene constraint
- LOEUF 0.785 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 75.49 · 8 PDB
- Residue 1884
- an α-helix; a UniProt-annotated variant site (in ndcagf; decreased protein abundance)
Similar variants
- INTS1 p.Ile1884Met Uncertain significance ★ ⚠ same residue
- INTS1 c.3430-2A>C Likely pathogenic ★★ same type
- INTS1 p.Arg101Ter Likely pathogenic ★★ same type
- INTS1 p.Glu182Ter Likely pathogenic ★★ same type
- INTS1 c.1283+5G>A Uncertain significance ★★ same type
- INTS1 c.2977-5C>T Uncertain significance ★★ same type
- INTS1 p.Ala1112Val Uncertain significance ★★ ⚠ same type
- INTS1 p.Ala1505Val 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/ints1-p-ile1884 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown