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IPO8 p.Met693Val

c.2077A>G · VCV3529618

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.3026 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.000173%, nfe)
Missense predictors
0/2 damaging
AlphaMissense, SaProt · REVEL no call
Conditions
1
Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense0.3026likely benign
REVEL0.438indeterminate
SaProtLLR -5.62tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 7.9GERP 2.9, phastCons 1
Regional constrainto/e 0.80unconstrained · MANE · 54 kb · p 1.3e-11 · regional, not allelic
Overall
CADD24.3PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000173% European (non-Finnish) · 2/1,153,630 alleles
Filtering AF 2.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%
Overall 0.000127% 2/1,580,500 alleles · very rare exomes 0/1,428,572 · genomes 2/151,928 · joint denominator

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
IPO8
Protein
p.Met693Val
Coding
c.2077A>G
MANE Select
NM_006390
Type
single nucleotide variant
Location
chr12:30652287 (GRCh38)
Gene constraint
LOEUF 0.575 · pLI 0.15 (gnomAD)
Structure
AlphaFold pLDDT 87.59
Residue 693
a UniProt-annotated variant site (in viss; undetectable protein levels in either patient's fibroblasts or patient's epstein-barr virus-immortalized b cell lines); a UniProt-annotated variant site (in viss); a UniProt-annotated variant site (in viss; undetectable protein levels in patient's fibroblasts, although mrna levels seem unaffected)
Full IPO8 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/ipo8-p-met693val (accessed [today's date]).

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