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AFF4 p.Asp306=

c.918T>C · rs146532485 · VCV720624

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.244%, afr)
Conditions
1
cognitive impairment - coarse facies - heart defects - obesity - pulmonary involvement - short stature - skeletal dysplasia syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.133moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 2.5GERP -3.8, phastCons 1
Overall
CADD11.07PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.244% African / African-American · 183/74,970 alleles
Filtering AF 0.215% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.204%
Overall 0.0126% 203/1,610,796 alleles · rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.244% 410
Middle Eastern 0.0332% 3,008
Remaining individualsnot grpmax-eligible 0.0144% 6,929
Admixed American 0.0117% 8,547
South Asian 0.0011% 90,870
European (non-Finnish) 8.49e-05% 1,177,708

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
AFF4
Protein
p.Asp306=
Coding
c.918T>C
MANE Select
NM_014423
dbSNP
rs146532485
Type
single nucleotide variant
Location
chr5:132934147 (GRCh38)
Gene constraint
LOEUF 0.114 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 54.62 · 9 PDB
Residue 306
the 'disordered' region
Full AFF4 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/aff4-p-asp306 (accessed [today's date]).

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