Is CEP290 p.Arg151Gln (c.452G>A) pathogenic?

CEP290 p.Arg151Gln (c.452G>A) is classified Uncertain significance in CEP290 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-01-21). AlphaMissense: likely benign (0.167); Very rare (popmax 0.00256%, amr); Associated with Joubert syndrome.

What condition is associated with CEP290 p.Arg151Gln (c.452G>A)?

CEP290 p.Arg151Gln (c.452G>A) is associated with Joubert syndrome, Meckel syndrome, nephronophthisis (ClinVar).

How common is CEP290 p.Arg151Gln (c.452G>A) in the general population?

CEP290 p.Arg151Gln (c.452G>A) is very rare (popmax 0.00256%, amr) (gnomAD).

What do computational predictors say about CEP290 p.Arg151Gln (c.452G>A)?

AlphaMissense predicts likely benign (score 0.167) — an in-silico prediction, not a clinical call.

CEP290 p.Arg151Gln

c.452G>A · rs753374614 · VCV1011871

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.167 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00256%, amr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Joubert syndrome

Computational evidence

Protein change
AlphaMissense	0.167	likely benign
REVEL	0.166	moderately benign-leaning
SaProt	LLR -5.58	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.9	GERP 2.1, phastCons 1
Regional constraint	o/e 1.00	unconstrained · MANE · 92 kb · p 0.89 · regional, not allelic
Overall
CADD	27.6	PHRED · 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 0.00256% Admixed American · 1/39,016 alleles

Filtering AF 0.000566% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000447%

Overall 0.00113% 17/1,500,650 alleles · very rare

Ancestry group	Frequency	1 in
Remaining individualsnot grpmax-eligible	0.00346%	28,923
Admixed Americangrpmax	0.00256%	39,016
African / African-American	0.00146%	68,368
South Asian	0.00138%	72,644
European (non-Finnish)	0.00106%	94,283

Remaining individuals 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: CEP290
Protein: p.Arg151Gln
Coding: c.452G>A
MANE Select: NM_025114
dbSNP: rs753374614
Type: single nucleotide variant
Location: chr12:88131208 (GRCh38)
Gene constraint: LOEUF 1.094 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 60.90
Residue 151: the 'self-association (with itself or c-terminus)' region; a UniProt-annotated variant site (in lca10; also found in a patient with night blindness and hearing loss); the 'disordered' region

Full CEP290 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Joubert syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Meckel syndrome nephronophthisis

Similar variants

CEP290 p.Arg151Ter Pathogenic/Likely pathogenic ★★ same residue
CEP290 p.Arg151Pro Uncertain significance ★ ⚠ same residue
CEP290 c.1189+1G>A Pathogenic ★★★ same condition
CEP290 c.1189+2T>C Pathogenic ★★★ same condition
CEP290 c.297+1G>T Pathogenic ★★★ same condition
CEP290 c.2991+1655A>G Pathogenic ★★★ same condition
CEP290 c.6271-8T>G Pathogenic ★★★ same condition
CEP290 p.Arg1272Ter Pathogenic ★★★ same condition

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/cep290-p-arg151gln (accessed [today's date]).

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