Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Common
common (popmax 25.9%, sas) — too common for a highly-penetrant pathogenic allele
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -20 | GERP -3.7 |
| Overall | ||
| CADD | 0.002 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
25.9%
South Asian · 23,563/90,888 alleles
Filtering AF
25.6%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 25.5%
Overall
9.18%
148,072/1,612,132 alleles · common
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 25.9% | 4 |
| East Asian | 18% | 6 |
| African / African-American | 16.1% | 6 |
| Middle Eastern | 14.6% | 7 |
| Finnishnot grpmax-eligible | 13.6% | 7 |
| Ashkenazi Jewishnot grpmax-eligible | 12.6% | 8 |
| Remaining individualsnot grpmax-eligible | 10.3% | 10 |
| Amishnot grpmax-eligible | 7.89% | 13 |
| European (non-Finnish) | 6.87% | 15 |
| Admixed American | 6.02% | 17 |
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
- ABO
- Protein
- p.Gly268Ala
- Coding
- c.803G>C
- dbSNP
- rs8176747
- Type
- single nucleotide variant
- Location
- chr9:133255928 (GRCh38)
- Gene constraint
- LOEUF 1.416 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 89.59 · 151 PDB
- Residue 268
- a UniProt-annotated variant site (in allele bw08); a UniProt-annotated variant site (in allele aw08)
Similar variants
- ABO p.Ala177Thr Likely benign ★ same type
- ABO p.Glu276Lys Likely benign ★ same type
- ABO p.Ile256= Likely benign ★ same type
- ABO p.Leu324= Benign ★ same type
- ABO p.Phe216Ile Benign ★ same type
- ABO p.Pro74Ser Benign ★ same type
- ABO p.Val36Phe Benign ★ same type
- ABO p.Cys14Ter Benign 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/abo-p-gly268ala (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown