INTS1 p.Ser400=
c.1200C>T · rs201018657 · VCV716772
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
rare (popmax 0.682%, 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 -12 | GERP -3.1 |
| Overall | ||
| CADD | 0.027 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.682%
African / African-American · 510/74,794 alleles
Filtering AF
0.633%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.614%
Overall
0.0527%
844/1,600,122 alleles · rare
exomes 511/1,447,942 · genomes 333/152,180 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.682% | 147 |
| South Asian | 0.147% | 682 |
| Admixed American | 0.084% | 1,191 |
| Middle Eastern | 0.0828% | 1,208 |
| Remaining individualsnot grpmax-eligible | 0.0791% | 1,265 |
| European (non-Finnish) | 0.00852% | 11,738 |
| East Asian | 0.00452% | 22,114 |
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.Ser400=
- Coding
- c.1200C>T
- MANE Select
- NM_001080453
- dbSNP
- rs201018657
- Type
- single nucleotide variant
- Location
- chr7:1498790 (GRCh38)
- Gene constraint
- LOEUF 0.785 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 75.49 · 8 PDB
- Residue 400
- an α-helix
Similar variants
- 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
- INTS1 p.Ala1854Val 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-ser400 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown