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HAP1 p.Leu348=

c.1044C>T · rs116828637 · VCV788808

Benign Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
low-frequency (popmax 4.02%, afr)

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 1.1GERP -1.2, phastCons 1
Overall
CADD5.957PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 4.02% African / African-American · 3,015/74,978 alleles
Filtering AF 3.9% ClinGen BA1/BS1 input FAF95, joint · FAF99 3.85%
Overall 0.239% 3,858/1,612,254 alleles · low-frequency exomes 1,964/1,459,968 · genomes 1,894/152,286 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 4.02% 25
Middle Eastern 0.66% 151
Admixed American 0.538% 186
Remaining individualsnot grpmax-eligible 0.314% 319
European (non-Finnish) 0.0224% 4,463
South Asian 0.0198% 5,058
Finnishnot grpmax-eligible 0.00312% 32,021

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.Leu348=
Coding
c.1044C>T
MANE Select
NM_177977
dbSNP
rs116828637
Type
single nucleotide variant
Location
chr17:41731518 (GRCh38)
Gene constraint
LOEUF 1.31 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 64.28
Residue 348
the hap1 n-terminal domain
Full HAP1 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/hap1-p-leu348 (accessed [today's date]).

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