Is CEP295 p.Asn103Ser (c.308A>G) pathogenic?

CEP295 p.Asn103Ser (c.308A>G) is classified Uncertain significance in CEP295 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-10). AlphaMissense: ambiguous (0.4449); Very rare (popmax 7.18e-05%).

How common is CEP295 p.Asn103Ser (c.308A>G) in the general population?

CEP295 p.Asn103Ser (c.308A>G) is very rare (popmax 7.18e-05%) (gnomAD).

What do computational predictors say about CEP295 p.Asn103Ser (c.308A>G)?

AlphaMissense predicts ambiguous (score 0.4449) — an in-silico prediction, not a clinical call.

CEP295 p.Asn103Ser

c.308A>G · VCV3831846

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.4449 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 7.18e-05%)

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense no call

Computational evidence

Protein change
AlphaMissense	0.4449	ambiguous · top 9% in CEP295
REVEL	0.133	moderately benign-leaning
SaProt	LLR -4.04	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense makes no call.
Splicing
SpliceAI	Δ0.41	donor gain · deltas
Constraint at this position
Conservation	phyloP 11	GERP 1.8, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 25 kb · p 0.36 · regional, not allelic
Overall
CADD	33.0	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 7.18e-05%

Overall 7.18e-05% 1/1,391,846 alleles · very rare

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: CEP295
Protein: p.Asn103Ser
Coding: c.308A>G
MANE Select: NM_033395
Type: single nucleotide variant
Location: chr11:93667806 (GRCh38)
Gene constraint: LOEUF 0.735 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 44.76
Residue 103: the 'necessary for centriole targeting and microtubule association' region

Full CEP295 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CEP295 p.Gln2146His Uncertain significance ★★ ⚠ same type
CEP295 p.Gln998Arg Uncertain significance ★★ ⚠ same type
CEP295 p.Thr451Arg Uncertain significance ★★ ⚠ same type
CEP295 p.Gln1506= Benign ★★ same type
CEP295 p.Gln1728= Benign ★★ same type
CEP295 p.Gln80Lys Benign ★★ same type
CEP295 p.Glu1026Lys Benign ★★ ⚠ same type
CEP295 p.Glu179Lys Benign ★★ same type

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/cep295-p-asn103ser (accessed [today's date]).

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