Send feedback

DRD4 p.Ile156=

c.468C>A · VCV3356919

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0232%, mid)
Conditions
1
DRD4-related disorder

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -0.3GERP -3.1, phastCons 0.25
Overall
CADD10.11PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0232% Middle Eastern · 1/4,306 alleles
Filtering AF 0.00339% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00306%
Overall 0.00379% 57/1,503,244 alleles · ultra-rare exomes 48/1,351,748 · genomes 9/151,496 · joint denominator
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0232% 4,306
Remaining individualsnot grpmax-eligible 0.00689% 14,513
European (non-Finnish) 0.00441% 22,672
South Asian 0.00246% 40,675

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
DRD4
Protein
p.Ile156=
Coding
c.468C>A
MANE Select
NM_000797
Type
single nucleotide variant
Location
chr11:639717 (GRCh38)
Gene constraint
LOEUF 1.952 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 78.06 · 2 PDB
Residue 156
an α-helix
Full DRD4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

DRD4-related disorder

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/drd4-p-ile156 (accessed [today's date]).

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