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AFF3 p.Asp77=

c.231T>C · VCV3341903

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0889%, sas)

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
ConservationphyloP 0.39GERP 0.78, phastCons 0.58
Overall
CADD7.083PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0889% South Asian · 81/91,088 alleles
Filtering AF 0.0733% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0675%
Overall 0.00502% 81/1,614,054 alleles · ultra-rare exomes 79/1,461,882 · genomes 2/152,172 · joint denominator

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
AFF3
Protein
p.Asp77=
Coding
c.231T>C
MANE Select
NM_001386135
Type
single nucleotide variant
Location
chr2:100007404 (GRCh38)
Gene constraint
LOEUF 0.318 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 52.20
Full AFF3 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/aff3-p-asp77 (accessed [today's date]).

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