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HDAC4 p.Pro324=

c.972G>A · rs138685594 · VCV733091

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0329%, mid)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.021moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -13GERP -4.3
Overall
CADD0.428PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0329% Middle Eastern · 2/6,084 alleles
Filtering AF 0.0166% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0137%
Overall 0.00514% 83/1,613,770 alleles · ultra-rare exomes 68/1,461,534 · genomes 15/152,236 · joint denominator
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0329% 3,042
African / African-American 0.0254% 3,944
Ashkenazi Jewishnot grpmax-eligible 0.0169% 5,919
Remaining individualsnot grpmax-eligible 0.0112% 8,925
Admixed American 0.00667% 15,003
Finnishnot grpmax-eligible 0.00469% 21,323
East Asian 0.00446% 22,446
South Asian 0.00329% 30,360
European (non-Finnish) 0.00322% 31,048

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
HDAC4
Protein
p.Pro324=
Coding
c.972G>A
MANE Select
NM_001378414
dbSNP
rs138685594
Type
single nucleotide variant
Location
chr2:239139690 (GRCh38)
Gene constraint
LOEUF 0.192 · pLI 1.00 · ClinGen HI 1/3 (gnomAD)
Structure
AlphaFold pLDDT 65.67 · 19 PDB
Full HDAC4 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/hdac4-p-pro324 (accessed [today's date]).

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