Is CEL p.Asp204fs (c.610dup) pathogenic?

CEL p.Asp204fs (c.610dup) is classified Uncertain significance in CEL (ClinVar, Single submitter, 1 submitter; last evaluated 2024-06-14). Ultra-rare (popmax 0.011%, sas); Associated with maturity-onset diabetes of the young type 8.

What condition is associated with CEL p.Asp204fs (c.610dup)?

CEL p.Asp204fs (c.610dup) is associated with maturity-onset diabetes of the young type 8 (ClinVar).

How common is CEL p.Asp204fs (c.610dup) in the general population?

CEL p.Asp204fs (c.610dup) is ultra-rare (popmax 0.011%, sas) (gnomAD).

How is MODY inherited?

Typically Autosomal dominant, Not applicable (Orphanet). A genetic counselor can assess individual risk for a family.

CEL p.Asp204fs

c.610dup · VCV3596540

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

frameshift

predicted LoF

gnomAD v4.1

Rare

ultra-rare (popmax 0.011%, sas)

Conditions

maturity-onset diabetes of the young type 8

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	frameshift	predicted loss-of-function
NMD	predicted	premature termination codon in exon 5 of 11
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP -5.5	GERP -3.7
Overall
CADD	34.0	PHRED · no single calibrated threshold — expert panels disagree
Region caveats
Repeat context	seg dup	· reads may not map uniquely · confidence, not pathogenicity

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.011% South Asian · 10/91,082 alleles

Filtering AF 0.00594% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00453%

Overall 0.00279% 45/1,613,720 alleles · ultra-rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.011%	9,108
Finnishnot grpmax-eligible	0.00314%	31,881
European (non-Finnish)	0.0028%	35,758

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: CEL
Protein: p.Asp204fs
Coding: c.610dup
MANE Select: NM_001807
Type: Duplication
Location: chr9:133066594 (GRCh38)
Gene constraint: LOEUF 0.972 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 84.10 · 7 PDB
Residue 204: a β-strand

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

Disease context

maturity-onset diabetes of the young type 8 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For MODY (Orphanet):

Inheritance: Autosomal dominant, Not applicable
Onset: Adolescent, Adult, Childhood
Prevalence: 1-5 / 10 000 (Europe)

Similar variants

CEL c.895+2dup Uncertain significance ★★ same condition
CEL p.Val714fs Likely pathogenic ★ same condition
CEL p.Gly688_Ala689insProProProValProProThrGlyAspSerGly Uncertain significance ★ same condition
CEL p.Thr695fs Uncertain significance ★ same condition
CEL p.Val604fs Uncertain significance ★ same condition
CEL p.Val637fs Uncertain significance ★ same condition
CEL p.Val681fs Uncertain significance ★ same condition
CEL p.Val692fs Conflicting classifications of pathogenicity ★ 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/cel-p-asp204fs (accessed [today's date]).

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