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DOCK1 p.Arg1121His

c.3362G>A · VCV4243760

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely pathogenic
0.9891 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.00334%, amr)
Missense predictors
3/3 damaging
AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense0.9891likely pathogenic · top 9% in DOCK1
REVEL0.895moderately pathogenic-leaning
SaProtLLR -14.02damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 12GERP 2.3, phastCons 1
Regional constrainto/e 0.90unconstrained · MANE · 321 kb · p 0.017 · regional, not allelic
Overall
CADD33.0PHRED · 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.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM R1100H vs ClinVar R1121H) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00334% Admixed American · 2/59,964 alleles
Filtering AF 0.00196% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00168%
Overall 0.0026% 42/1,613,708 alleles · very rare
Ancestry group Frequency 1 in
Ashkenazi Jewishnot grpmax-eligible 0.00676% 14,802
Admixed Americangrpmax 0.00334% 29,982
South Asian 0.0033% 30,342
Remaining individualsnot grpmax-eligible 0.0032% 31,230
European (non-Finnish) 0.00271% 36,871
East Asian 0.00223% 44,892

Ashkenazi Jewish 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
DOCK1
Protein
p.Arg1121His
Coding
c.3362G>A
MANE Select
NM_001290223
Type
single nucleotide variant
Location
chr10:127362142 (GRCh38)
Gene constraint
LOEUF 0.637 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 79.63 · 1 PDB
Full DOCK1 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/dock1-p-arg1121his (accessed [today's date]).

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