FLT4 p.Ile501=
c.1503C>T · VCV4083805
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0334%, eas)
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 -4.5 | GERP -2.6 |
| Overall | ||
| CADD | 4.311 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0334%
East Asian · 15/44,886 alleles
Filtering AF
0.0206%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0166%
Overall
0.00192%
31/1,613,424 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0334% | 2,992 |
| African / African-American | 0.00401% | 24,969 |
| Admixed American | 0.00167% | 59,996 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,476 |
| South Asian | 0.0011% | 91,078 |
| European (non-Finnish) | 0.000847% | 118,000 |
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
- FLT4
- Protein
- p.Ile501=
- Coding
- c.1503C>T
- MANE Select
- NM_182925
- Type
- single nucleotide variant
- Location
- chr5:180623980 (GRCh38)
- Gene constraint
- LOEUF 0.265 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 72.82 · 2 PDB
- Residue 501
- a β-strand; a disulfide bond; a UniProt-annotated variant site (in chtd7); the ig-like c2-type 5 domain
Similar variants
- FLT4 p.Arg1041Gln Pathogenic/Likely pathogenic ★★ same type
- FLT4 p.Arg1041Trp Pathogenic/Likely pathogenic ★★ same type
- FLT4 p.Arg318Ter Pathogenic/Likely pathogenic ★★ same type
- FLT4 p.Gly1131Ser Pathogenic/Likely pathogenic ★★ same type
- FLT4 p.Gly857Arg Pathogenic ★★ same type
- FLT4 p.Pro1137Leu Likely pathogenic ★★ same type
- FLT4 p.Ala702Ser Uncertain significance ★★ ⚠ same type
- FLT4 p.Ala855Thr 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/flt4-p-ile501 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown