Is BCOR p.Asp551Asn (c.1651G>A) pathogenic?

BCOR p.Asp551Asn (c.1651G>A) is classified Benign/Likely benign in BCOR (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-01-01). AlphaMissense: likely benign (0.1344); Ultra-rare (popmax 0.0404%, sas); Associated with microphthalmia, syndromic 2.

What condition is associated with BCOR p.Asp551Asn (c.1651G>A)?

BCOR p.Asp551Asn (c.1651G>A) is associated with microphthalmia, syndromic 2 (ClinVar).

How common is BCOR p.Asp551Asn (c.1651G>A) in the general population?

BCOR p.Asp551Asn (c.1651G>A) is ultra-rare (popmax 0.0404%, sas) (gnomAD).

What do computational predictors say about BCOR p.Asp551Asn (c.1651G>A)?

AlphaMissense predicts likely benign (score 0.1344) — an in-silico prediction, not a clinical call.

BCOR p.Asp551Asn

c.1651G>A · rs372463512 · VCV1533488

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.1344 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0404%, sas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

microphthalmia, syndromic 2

Computational evidence

Protein change
AlphaMissense	0.1344	likely benign
REVEL	0.083	moderately benign-leaning
SaProt	LLR -6.23	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 1.6, phastCons 1
Regional constraint	o/e 0.90	unconstrained · MANE · 2,116 bp · p 0.013 · regional, not allelic
Overall
CADD	14.24	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0404% South Asian · 23/56,976 alleles

Filtering AF 0.0276% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0234%

Overall 0.00487% 59/1,211,740 alleles · ultra-rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0404%	2,477
African / African-American	0.00519%	19,250
Remaining individualsnot grpmax-eligible	0.0042%	23,829
European (non-Finnish)	0.00346%	28,889

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: BCOR
Protein: p.Asp551Asn
Coding: c.1651G>A
MANE Select: NM_001123385
dbSNP: rs372463512
Type: single nucleotide variant
Location: chrX:40073695 (GRCh38)
Structure: AlphaFold pLDDT 39.82 · 5 PDB

Full BCOR gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

microphthalmia, syndromic 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

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BCOR p.Arg976Ter Pathogenic ★★ same condition
BCOR p.Ala1262Ser Uncertain significance ★★ ⚠ same condition
BCOR p.Ala1307Pro Uncertain significance ★★ ⚠ same condition
BCOR p.Ala165Pro 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-asp551asn (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown