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ABCC2 p.Asp523Tyr

c.1567G>T · VCV4121888

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.0863 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.00446%, eas)
Missense predictors
1/2 damaging
AlphaMissense, SaProt · REVEL no call
Conditions
1
Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense0.0863likely benign
REVEL0.482indeterminate
SaProtLLR -11.11damaging
⇒ SaProt calls this damaging; AlphaMissense does not; REVEL makes no call.
Splicing
SpliceAIΔ0.35acceptor gain · deltas
Constraint at this position
ConservationphyloP 2GERP -1.7, phastCons 0.9
Regional constrainto/e 0.98unconstrained · MANE · 69 kb · p 0.48 · regional, not allelic
Overall
CADD23.1PHRED · 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 0.00446% East Asian · 2/44,878 alleles
Filtering AF 0.000739% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000276%
Overall 0.000274% 4/1,461,832 alleles · very rare
Ancestry group Frequency 1 in
East Asiangrpmax 0.00446% 22,439
European (non-Finnish) 0.000169% 589,995

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
ABCC2
Protein
p.Asp523Tyr
Coding
c.1567G>T
MANE Select
NM_000392
Type
single nucleotide variant
Location
chr10:99807420 (GRCh38)
Gene constraint
LOEUF 0.985 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 81.40 · 16 PDB
Residue 523
an α-helix; the abc transmembrane type-1 1 domain
Full ABCC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/abcc2-p-asp523tyr (accessed [today's date]).

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