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HPS3 p.Phe781Ser

c.2342T>C · rs2108170322 · VCV1463689

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
ambiguous
0.5391 · ACMG-weighted
gnomAD v4.1
Absent
absent from gnomAD v4.1
Missense predictors
1/2 damaging
REVEL, SaProt · AlphaMissense indeterminate

⚠ Built without this gene's context — gene constraint and dosage, protein structure, pathways, panels and related-variant links were not looked up for this page. why

Computational evidence

Protein change
AlphaMissense0.5391ambiguous
REVEL0.746pathogenic-leaning
SaProtLLR -7.90tolerated
⇒ REVEL calls this damaging; SaProt does not; AlphaMissense is indeterminate.
Splicing
SpliceAI—not looked up on this page · why
Constraint at this position
ConservationphyloP 7.8GERP 2.2, phastCons 1
Regional constrainto/e 0.99unconstrained · MANE · 42 kb · p 0.79 · regional, not allelic
Overall
CADD27.4PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene
HPS3
Protein
p.Phe781Ser
Coding
c.2342T>C
MANE Select
NM_032383
dbSNP
rs2108170322
Type
single nucleotide variant
Location
chr3:149162739 (GRCh38)
Full HPS3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/hps3-p-phe781ser (accessed [today's date]).

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