APOB c.237+4T>C
Conflicting classifications of pathogenicity
Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.000764%, nfe)
Conditions
2
Cardiovascular phenotype
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| Splice region | donor +4 | donor splice region (+4, within the first 6 intronic nt) · inside the BP7-excluded zone |
|---|---|---|
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP -0.75 | GERP -2.9 |
| Non-coding constraint | Z 0.82 | 1 kb window · o/e 0.93 · regional · uncalibrated |
| Overall | ||
| CADD | 2.699 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.000764%
European (non-Finnish) · 9/1,177,334 alleles
Filtering AF
0.00036%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000261%
Overall
0.000559%
9/1,610,720 alleles · very rare
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
- APOB
- Coding
- c.237+4T>C
- MANE Select
- NM_000384
- dbSNP
- rs1170796077
- Type
- single nucleotide variant
- Location
- chr2:21042357 (GRCh38)
- Gene constraint
- LOEUF 0.537 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Similar variants
- APOB p.Arg2085Ter Pathogenic/Likely pathogenic ★★ same condition
- APOB p.Arg3527Gln Pathogenic/Likely pathogenic ★★ ⚠ same condition
- APOB p.Arg3527Trp Pathogenic/Likely pathogenic ★★ ⚠ same condition
- APOB p.Arg490Trp Pathogenic/Likely pathogenic ★★ same condition
- APOB c.1124+3A>G Uncertain significance ★★ same condition
- APOB c.11788+4A>G Uncertain significance ★★ same condition
- APOB c.12087+2T>C Uncertain significance ★★ same condition
- APOB p.Ala1320Thr 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/apob-c-237-plus-4t-c (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown