OFD1 p.Ala974=
c.2922A>G · VCV4948977
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00703%, sas)
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 -1.3 | GERP -2.9 |
| Overall | ||
| CADD | 1.747 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00703%
South Asian · 4/56,905 alleles
Filtering AF
0.00234%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0014%
Overall
0.000332%
4/1,206,129 alleles · very rare
exomes 4/1,091,918 · genomes 0/114,211 · 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
- OFD1
- Protein
- p.Ala974=
- Coding
- c.2922A>G
- MANE Select
- NM_003611
- Type
- single nucleotide variant
- Location
- chrX:13768218 (GRCh38)
- Structure
- AlphaFold pLDDT 68.41
- Residue 974
- the 'mediates the interaction with sdccag8' region; the 'disordered' region
Similar variants
- OFD1 c.1411+1G>A Pathogenic ★★ same type
- OFD1 c.2600-1G>C Pathogenic/Likely pathogenic ★★ same type
- OFD1 c.655-8A>G Likely pathogenic ★★ same type
- OFD1 p.Arg367Ter Pathogenic ★★ same type
- OFD1 p.Arg41Ter Pathogenic ★★ same type
- OFD1 p.Arg890Ter Pathogenic/Likely pathogenic ★★ same type
- OFD1 p.Arg909Ter Pathogenic/Likely pathogenic ★★ same type
- OFD1 p.Gln966Ter Pathogenic/Likely pathogenic ★★ 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/ofd1-p-ala974 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown