IFT74 p.Ile590=
c.1770C>T · rs767617338 · VCV2191230
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00403%, 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 -2.7 | GERP -3.4 |
| Overall | ||
| CADD | 6.454 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00403%
African / African-American · 3/74,382 alleles
Filtering AF
0.00154%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00131%
Overall
0.00193%
31/1,603,792 alleles · very rare
exomes 27/1,452,128 · genomes 4/151,664 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.00403% | 24,794 |
| European (non-Finnish) | 0.00221% | 45,152 |
| Admixed American | 0.0017% | 58,832 |
| Remaining individualsnot grpmax-eligible | 0.00161% | 62,142 |
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
- IFT74
- Protein
- p.Ile590=
- Coding
- c.1770C>T
- MANE Select
- NM_025103
- dbSNP
- rs767617338
- Type
- single nucleotide variant
- Location
- chr9:27062703 (GRCh38)
- Gene constraint
- LOEUF 1.508 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 81.21
- Residue 590
- a UniProt-annotated variant site (in jbts40); the 'important for interaction with ift27' region
Similar variants
- IFT74 c.1685-1G>T Pathogenic/Likely pathogenic ★★ same type
- IFT74 p.Gln179Glu Pathogenic/Likely pathogenic ★★ ⚠ same type
- IFT74 p.Glu120Ter Pathogenic/Likely pathogenic ★★ same type
- IFT74 p.Glu285Ter Pathogenic/Likely pathogenic ★★ same type
- IFT74 p.Ala196Val Uncertain significance ★★ ⚠ same type
- IFT74 p.Ala558Val Uncertain significance ★★ ⚠ same type
- IFT74 p.Arg182Gln Uncertain significance ★★ ⚠ same type
- IFT74 p.Arg402Gly 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/ift74-p-ile590 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown