Is CEP164 p.Ala546= (c.1638C>G) pathogenic?

CEP164 p.Ala546= (c.1638C>G) is classified Likely benign in CEP164 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-11-24). Very rare (popmax 0.00466%, nfe); Associated with nephronophthisis 15.

What condition is associated with CEP164 p.Ala546= (c.1638C>G)?

CEP164 p.Ala546= (c.1638C>G) is associated with nephronophthisis 15 (ClinVar).

How common is CEP164 p.Ala546= (c.1638C>G) in the general population?

CEP164 p.Ala546= (c.1638C>G) is very rare (popmax 0.00466%, nfe) (gnomAD).

How is Senior-Loken syndrome inherited?

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

CEP164 p.Ala546=

c.1638C>G · rs144199348 · VCV1077593

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00466%, nfe)

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 -8.7	GERP -2.9
Overall
CADD	0.845	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00466% European (non-Finnish) · 55/1,180,016 alleles

Filtering AF 0.00367% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00329%

Overall 0.00353% 57/1,613,894 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00466%	21,455
Remaining individualsnot grpmax-eligible	0.0032%	31,235

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.Ala546=
Coding: c.1638C>G
MANE Select: NM_014956
dbSNP: rs144199348
Type: single nucleotide variant
Location: chr11:117382856 (GRCh38)
Gene constraint: LOEUF 1.009 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 63.08 · 4 PDB
Residue 546: the 'disordered' region

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 p.Ala546Val Uncertain significance ★ ⚠ same residue
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

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-ala546 (accessed [today's date]).

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