Is CEP164 p.Ala50= (c.150G>A) pathogenic?

CEP164 p.Ala50= (c.150G>A) is classified Likely benign in CEP164 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-08-29). Ultra-rare (popmax 0.0164%, mid); Associated with nephronophthisis 15.

What condition is associated with CEP164 p.Ala50= (c.150G>A)?

CEP164 p.Ala50= (c.150G>A) is associated with nephronophthisis 15 (ClinVar).

How common is CEP164 p.Ala50= (c.150G>A) in the general population?

CEP164 p.Ala50= (c.150G>A) is ultra-rare (popmax 0.0164%, mid) (gnomAD).

How is Senior-Loken syndrome inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

CEP164 p.Ala50=

c.150G>A · rs367761983 · VCV708800

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0164%, mid)

Conditions

nephronophthisis 15

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
Conservation	phyloP -8.4	GERP -3.1
Overall
CADD	1.159	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0164% Middle Eastern · 1/6,080 alleles

Filtering AF 0.00207% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00183%

Overall 0.00273% 44/1,613,304 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0164%	6,080
African / African-American	0.00534%	18,725
Admixed American	0.00334%	29,960
Remaining individualsnot grpmax-eligible	0.0032%	31,210
European (non-Finnish)	0.00288%	34,698
South Asian	0.0011%	90,968

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: CEP164
Protein: p.Ala50=
Coding: c.150G>A
MANE Select: NM_014956
dbSNP: rs367761983
Type: single nucleotide variant
Location: chr11:117344233 (GRCh38)
Gene constraint: LOEUF 1.009 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 63.08 · 4 PDB
Residue 50: the 'interaction with atrip' region; an α-helix

Full CEP164 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

nephronophthisis 15 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Senior-Loken syndrome (Orphanet):

Inheritance: Autosomal recessive
Onset: Adolescent, Adult, Childhood, Infancy
Prevalence: 1-9 / 1 000 000 (Worldwide)

Similar variants

CEP164 c.1234-2A>T Likely pathogenic ★★ same condition
CEP164 c.1724+1G>A Likely pathogenic ★★ same condition
CEP164 c.1934+1G>A Likely pathogenic ★★ same condition
CEP164 c.2361+1G>A Likely pathogenic ★★ same condition
CEP164 c.2493+1G>A Likely pathogenic ★★ same condition
CEP164 c.2914-1G>C Likely pathogenic ★★ same condition
CEP164 c.3748+2T>C Likely pathogenic ★★ same condition
CEP164 c.3749-2A>G Likely 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/cep164-p-ala50 (accessed [today's date]).

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