Is CEP57 p.Ser41= (c.123G>A) pathogenic?

CEP57 p.Ser41= (c.123G>A) is classified Likely benign in CEP57 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-02-07). Ultra-rare (popmax 0.049%, eas); Associated with mosaic variegated aneuploidy syndrome 2.

What condition is associated with CEP57 p.Ser41= (c.123G>A)?

CEP57 p.Ser41= (c.123G>A) is associated with mosaic variegated aneuploidy syndrome 2 (ClinVar).

How common is CEP57 p.Ser41= (c.123G>A) in the general population?

CEP57 p.Ser41= (c.123G>A) is ultra-rare (popmax 0.049%, eas) (gnomAD).

CEP57 p.Ser41=

c.123G>A · rs200083050 · VCV1405157

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.049%, eas)

Conditions

mosaic variegated aneuploidy syndrome 2

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 -4.5	GERP -4.8
Overall
CADD	6.615	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.049% East Asian · 22/44,862 alleles

Filtering AF 0.0332% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0279%

Overall 0.00198% 32/1,613,992 alleles · ultra-rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.049%	2,039
South Asian	0.0011%	91,074
European (non-Finnish)	0.000763%	131,109

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: CEP57
Protein: p.Ser41=
Coding: c.123G>A
MANE Select: NM_014679
dbSNP: rs200083050
Type: single nucleotide variant
Location: chr11:95799309 (GRCh38)
Gene constraint: LOEUF 0.74 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 76.32 · 3 PDB

Full CEP57 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

mosaic variegated aneuploidy syndrome 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CEP57 p.Ser41Leu Uncertain significance ★★ ⚠ same residue
CEP57 p.Arg339Ter Pathogenic ★★ same condition
CEP57 c.202+6C>T Uncertain significance ★★ same condition
CEP57 p.Ala19Gly Uncertain significance ★★ ⚠ same condition
CEP57 p.Ala278Thr Uncertain significance ★★ ⚠ same condition
CEP57 p.Ala278Val Uncertain significance ★★ ⚠ same condition
CEP57 p.Ala412Thr Uncertain significance ★★ ⚠ same condition
CEP57 p.Ala423Thr Uncertain significance ★★ ⚠ 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/cep57-p-ser41 (accessed [today's date]).

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