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DIAPH3 p.Leu229Pro

c.686T>C · rs201688909 · VCV1215569

Uncertain significance Multiple submitters
Classification
Uncertain significance
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
AlphaMissense
likely pathogenic
0.8621 · ACMG-weighted
gnomAD v4.1
Rare
ultra-rare (popmax 0.0164%, nfe)
Missense predictors
3/3 damaging
AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense0.8621likely pathogenic · top 8% in DIAPH3
REVEL0.844moderately pathogenic-leaning
SaProtLLR -15.44damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 11GERP 1.9, phastCons 1
Regional constrainto/e 1.01unconstrained · MANE · 497 kb · p 0.83 · regional, not allelic
Overall
CADD28.1PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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 0.0164% European (non-Finnish) · 193/1,179,774 alleles
Filtering AF 0.0144% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0137%
Overall 0.0129% 208/1,613,524 alleles · ultra-rare
Ancestry group Frequency 1 in
Amishnot grpmax-eligible 0.11% 910
European (non-Finnish)grpmax 0.0164% 6,113
Admixed American 0.00834% 11,996
African / African-American 0.00668% 14,980
Remaining individualsnot grpmax-eligible 0.00641% 15,613

Amish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
DIAPH3
Protein
p.Leu229Pro
Coding
c.686T>C
MANE Select
NM_001042517
dbSNP
rs201688909
Type
single nucleotide variant
Location
chr13:60016086 (GRCh38)
Gene constraint
LOEUF 0.889 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 72.33 · 2 PDB
Residue 229
the gbd/fh3 domain
Full DIAPH3 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/diaph3-p-leu229pro (accessed [today's date]).

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