F9 c.252+5G>A
Pathogenic
Multiple submitters
Classification
Pathogenic
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Absent
absent from gnomAD v4.1
Conditions
1
hemophilia B
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal. | ||
| Splicing | ||
| Splice region | donor +5 | donor splice region (+5, within the first 6 intronic nt) · inside the BP7-excluded zone |
|---|---|---|
| SpliceAI | Δ0.98 | donor loss · deltas |
| Pangolin | Δ0.85 | loss · gain 0.01 · agrees with SpliceAI · independent |
| Constraint at this position | ||
| Conservation | phyloP 12 | GERP 5.2, phastCons 1 |
| Non-coding constraint | — | not assessed · autosomes only, so chrX has no window · absence ≠ unconstrained |
| Overall | ||
| CADD | 13.54 | PHRED · no single calibrated threshold — expert panels disagree |
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
- F9
- Coding
- c.252+5G>A
- MANE Select
- NM_000133
- dbSNP
- rs1266788575
- Type
- single nucleotide variant
- Location
- chrX:139537178 (GRCh38)
- Structure
- AlphaFold pLDDT 80.45 · 57 PDB
Disease context
hemophilia B — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatmentsFor Hemophilia B (Orphanet):
- Inheritance
- X-linked recessive
- Onset
- Childhood, Infancy, Neonatal
- Prevalence
- 1-9 / 100 000 (Europe)
Similar variants
- F9 c.520+13A>G Pathogenic ★★★ same condition
- F9 c.88+1G>A Pathogenic ★★★ same condition
- F9 c.88+5G>T Likely pathogenic ★★★ same condition
- F9 p.Ala279Thr Pathogenic ★★★ ⚠ same condition
- F9 p.Ala337Pro Likely pathogenic ★★★ same condition
- F9 p.Ala337Thr Pathogenic ★★★ ⚠ same condition
- F9 p.Ala337Val Pathogenic ★★★ ⚠ same condition
- F9 p.Arg191His Pathogenic ★★★ ⚠ same condition
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/f9-c-252-plus-5g-a (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown