FLAD1 p.Pro503=
c.1509C>T · rs746434160 · VCV2999775
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.48e-05%, nfe)
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 2.2 | GERP 1.9, phastCons 1 |
| Overall | ||
| CADD | 11.74 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
8.48e-05%
European (non-Finnish) · 1/1,179,660 alleles
Overall
6.2e-05%
1/1,613,414 alleles · very rare
exomes 1/1,461,090 · genomes 0/152,324 · joint denominator
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
- FLAD1
- Protein
- p.Pro503=
- Coding
- c.1509C>T
- MANE Select
- NM_025207
- dbSNP
- rs746434160
- Type
- single nucleotide variant
- Location
- chr1:154990483 (GRCh38)
- Gene constraint
- LOEUF 0.809 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 83.34 · 2 PDB
- Residue 503
- the 'fad synthase' region; a β-strand
Similar variants
- FLAD1 p.Arg148Ter Pathogenic ★★ same type
- FLAD1 p.Arg249Ter Pathogenic ★★ same type
- FLAD1 p.Arg530Cys Pathogenic/Likely pathogenic ★★ ⚠ same type
- FLAD1 p.Cys136Ter Pathogenic/Likely pathogenic ★★ same type
- FLAD1 c.1365-3A>G Uncertain significance ★★ same type
- FLAD1 p.Arg137Gln Uncertain significance ★★ ⚠ same type
- FLAD1 p.Arg137Trp Uncertain significance ★★ ⚠ same type
- FLAD1 p.Arg169His 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/flad1-p-pro503 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown