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USP9X p.Pro277=

c.831A>C · rs780643359 · VCV2152610

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00441%, amr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP 2.6GERP 1, phastCons 1
Overall
CADD13.17PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00441% Admixed American · 2/45,305 alleles
Filtering AF 0.000732% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000274%
Overall 0.000332% 4/1,205,509 alleles · very rare exomes 4/1,092,110 · genomes 0/113,399 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.00441% 22,653
Remaining individualsnot grpmax-eligible 0.00211% 47,402
European (non-Finnish) 0.000112% 892,722

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
USP9X
Protein
p.Pro277=
Coding
c.831A>C
MANE Select
NM_001039591
dbSNP
rs780643359
Type
single nucleotide variant
Location
chrX:41141026 (GRCh38)
Structure
AlphaFold pLDDT 80.06 · 4 PDB
Full USP9X 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/usp9x-p-pro277 (accessed [today's date]).

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