BCAP31 c.477+1G>C
Likely pathogenic
Single submitter
Classification
Likely pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
canonical splice-site (±1/±2)
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/SpliceAI carries the signal. | ||
| Consequence | canonical splice-site (±1/±2) | predicted loss-of-function in a haploinsufficient gene (ClinGen) |
|---|---|---|
| Splicing | ||
| Splice region | donor +1 | canonical splice dinucleotide (donor +1) · inside the BP7-excluded zone |
| SpliceAI | Δ1.00 | donor loss · deltas |
| Pangolin | Δ0.90 | loss · gain 0.03 · agrees with SpliceAI · independent |
| Constraint at this position | ||
| Conservation | phyloP 7.6 | GERP 1.7, phastCons 1 |
| Non-coding constraint | — | not assessed · autosomes only, so chrX has no window · absence ≠ unconstrained |
| Overall | ||
| CADD | 27.2 | 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
- BCAP31
- Coding
- c.477+1G>C
- MANE Select
- NM_001256447
- dbSNP
- rs2522194574
- Type
- single nucleotide variant
- Location
- chrX:153703958 (GRCh38)
- Structure
- AlphaFold pLDDT 84.74 · 3 PDB
Similar variants
- BCAP31 p.Arg118Cys Uncertain significance ★★ ⚠ same type
- BCAP31 p.Glu245Lys Uncertain significance ★★ ⚠ same type
- BCAP31 p.Gly165Arg Uncertain significance ★★ ⚠ same type
- BCAP31 p.Gly239Asp Uncertain significance ★★ ⚠ same type
- BCAP31 p.Ile56Val Uncertain significance ★★ ⚠ same type
- BCAP31 p.Leu226Val Uncertain significance ★★ ⚠ same type
- BCAP31 p.Leu40Pro Uncertain significance ★★ ⚠ same type
- BCAP31 p.Lys30Arg 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/bcap31-c-477-plus-1g-c (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown