BCOR p.Arg1661Ter
c.4981C>T · rs755680047 · VCV655742
Conflicting classifications of pathogenicity
Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 2 submitters
Consequence
nonsense (stop-gain)
predicted LoF
gnomAD v4.1
Absent
absent from gnomAD v4.1
Conditions
1
microphthalmia, syndromic 2
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 | escapes | premature termination codon in the last exon (15 of 15) — the truncated protein is likely expressed. PVS1 input, not an applied code |
| REVEL | 0.094 | moderately benign-leaning |
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 4.3 | GERP 0.3, phastCons 1 |
| Overall | ||
| CADD | 36.0 | 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
- BCOR
- Protein
- p.Arg1661Ter
- Coding
- c.4981C>T
- MANE Select
- NM_001123385
- dbSNP
- rs755680047
- Type
- single nucleotide variant
- Location
- chrX:40052396 (GRCh38)
- Structure
- AlphaFold pLDDT 39.82 · 5 PDB
- Residue 1661
- the 'necessary and sufficient for interaction with pcgf1' region; a β-strand
Similar variants
- BCOR p.Arg1661Gln Uncertain significance ★ ⚠ same residue
- BCOR p.Arg1163Ter Pathogenic ★★ same condition
- BCOR p.Arg1217Ter Pathogenic ★★ same condition
- BCOR p.Arg1514Ter Pathogenic ★★ same condition
- BCOR p.Arg342Ter Pathogenic ★★ same condition
- BCOR p.Arg976Ter Pathogenic ★★ same condition
- BCOR p.Ala1262Ser Uncertain significance ★★ ⚠ same condition
- BCOR p.Ala1307Pro Uncertain significance ★★ ⚠ 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/bcor-p-arg1661ter (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown