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RAB23 p.Leu165=

c.495G>A · rs1172417830 · VCV2909119

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00134%, afr)
Conditions
1
Carpenter syndrome

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 2.6GERP 2.1, phastCons 1
Overall
CADD12.37PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00134% African / African-American · 1/74,788 alleles
Overall 6.2e-05% 1/1,611,896 alleles · very rare exomes 0/1,460,030 · genomes 1/151,866 · 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
RAB23
Protein
p.Leu165=
Coding
c.495G>A
MANE Select
NM_016277
dbSNP
rs1172417830
Type
single nucleotide variant
Location
chr6:57193921 (GRCh38)
Gene constraint
LOEUF 0.838 · pLI 0.03 (gnomAD)
Structure
AlphaFold pLDDT 80.39 · 6 PDB
Residue 165
a UniProt-annotated variant site (in crpt1; pathogenic; homozygous patient-derived neuronal cells exhibit impaired formation of the primary cilium); an α-helix
Full RAB23 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/rab23-p-leu165 (accessed [today's date]).

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