PHF8 p.Arg653Ter
c.1957C>T · VCV3600622
Pathogenic
Single submitter
Classification
Pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
nonsense (stop-gain)
predicted LoF
gnomAD v4.1
Absent
absent from gnomAD v4.1
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Consequence | nonsense (stop-gain) | predicted loss-of-function in a haploinsufficient gene (ClinGen) |
|---|---|---|
| NMD | predicted | premature termination codon in exon 16 of 22 |
| REVEL | 0.302 | indeterminate |
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
| Constraint at this position | ||
| Conservation | phyloP 2.4 | GERP -0.069, phastCons 1 |
| Overall | ||
| CADD | 35.0 | PHRED · no single calibrated threshold — expert panels disagree |
Predicted loss-of-function is descriptive, not an applied PVS1 code.
Population frequency
gnomAD v4.1 · exomes + genomes
Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.
Variant & gene context
- Gene
- PHF8
- Protein
- p.Arg653Ter
- Coding
- c.1957C>T
- MANE Select
- NM_015107
- Type
- single nucleotide variant
- Location
- chrX:53987116 (GRCh38)
- Structure
- AlphaFold pLDDT 63.30 · 6 PDB
Similar variants
- PHF8 p.Arg240Ter Likely pathogenic ★★ same type
- PHF8 p.Arg506Ter Pathogenic/Likely pathogenic ★★ same type
- PHF8 p.Arg753Ter Pathogenic/Likely pathogenic ★★ same type
- PHF8 p.Gln539Ter Pathogenic ★★ same type
- PHF8 p.Ser737Ter Pathogenic/Likely pathogenic ★★ same type
- PHF8 p.Ala770Pro Uncertain significance ★★ ⚠ same type
- PHF8 p.Ala888Ser Uncertain significance ★★ ⚠ same type
- PHF8 p.Arg240Gln 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/phf8-p-arg653ter (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown