Send feedback

HAP1 p.Thr434=

c.1302G>T · rs374580379 · VCV3043866

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00567%, nfe)
Conditions
1
HAP1-related disorder

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 0.037GERP -1.6, phastCons 0.36
Overall
CADD1.545PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00567% European (non-Finnish) · 66/1,164,002 alleles
Filtering AF 0.00457% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00417%
Overall 0.00452% 72/1,592,920 alleles · very rare exomes 68/1,440,768 · genomes 4/152,152 · joint denominator
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00567% 17,636
Remaining individualsnot grpmax-eligible 0.00486% 20,586
African / African-American 0.00268% 37,332
South Asian 0.00111% 89,928

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
HAP1
Protein
p.Thr434=
Coding
c.1302G>T
MANE Select
NM_177977
dbSNP
rs374580379
Type
single nucleotide variant
Location
chr17:41727118 (GRCh38)
Gene constraint
LOEUF 1.31 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 64.28
Residue 434
the hap1 n-terminal domain
Full HAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

HAP1-related disorder

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/hap1-p-thr434 (accessed [today's date]).

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