CFAP300 p.His255=
c.765T>C · rs2496363063 · VCV1996843
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.7e-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 -0.3 | GERP -0.66, phastCons 0.43 |
| Overall | ||
| CADD | 5.32 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
8.7e-05%
European (non-Finnish) · 1/1,149,778 alleles
Overall
7.11e-05%
1/1,407,078 alleles · very rare
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
- CFAP300
- Protein
- p.His255=
- Coding
- c.765T>C
- MANE Select
- NM_032930
- dbSNP
- rs2496363063
- Type
- single nucleotide variant
- Location
- chr11:102083160 (GRCh38)
- Gene constraint
- LOEUF 1.386 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 94.21
- Residue 255
- a UniProt-annotated variant site (in cild38; loss of ciliary axoneme inner dynein arm and outer dynein arm structures in patient respiratory epithelial cells)
Similar variants
- CFAP300 p.Arg121Ter Pathogenic ★★ same type
- CFAP300 p.Arg144Ter Pathogenic/Likely pathogenic ★★ same type
- CFAP300 p.Gln160Ter Pathogenic ★★ same type
- CFAP300 p.Gln52Ter Pathogenic ★★ same type
- CFAP300 p.His259Arg Pathogenic/Likely pathogenic ★★ same type
- CFAP300 c.110+16A>G Benign ★★ same type
- CFAP300 c.192+59A>C Benign ★★ same type
- CFAP300 c.268+13T>C Benign/Likely benign ★★ 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/cfap300-p-his255 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown