Is CEL p.Val156fs (c.466_479del) pathogenic?

CEL p.Val156fs (c.466479del) is classified Conflicting classifications of pathogenicity in CEL (ClinVar, Conflicting submitters, 3 submitters; last evaluated 2024-07-26). Ultra-rare (popmax 0.084%, afr); Associated with maturity-onset diabetes of the young type 8.

What condition is associated with CEL p.Val156fs (c.466_479del)?

CEL p.Val156fs (c.466_479del) is associated with maturity-onset diabetes of the young type 8 (ClinVar).

How common is CEL p.Val156fs (c.466_479del) in the general population?

CEL p.Val156fs (c.466_479del) is ultra-rare (popmax 0.084%, afr) (gnomAD).

How is MODY inherited?

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

CEL p.Val156fs

c.466_479del · rs572853045 · VCV1201063

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 3 submitters

Consequence

frameshift

predicted LoF

gnomAD v4.1

Rare

ultra-rare (popmax 0.084%, afr)

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 4 of 11
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP 7.9	GERP -1.6, phastCons 1
Overall
CADD	35.0	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 0.084% African / African-American · 63/75,042 alleles

Filtering AF 0.0673% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0613%

Overall 0.00471% 76/1,613,902 alleles · ultra-rare exomes 41/1,461,552 · genomes 35/152,350 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.084%	1,191
Middle Eastern	0.033%	3,031
Admixed American	0.0117%	8,576
Remaining individualsnot grpmax-eligible	0.0032%	31,253
South Asian	0.0022%	45,545

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.Val156fs
Coding: c.466_479del
MANE Select: NM_001807
dbSNP: rs572853045
Type: Deletion
Location: chr9:133065163 (GRCh38)
Gene constraint: LOEUF 0.972 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 84.10 · 7 PDB

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 p.Val593fs Likely pathogenic ★★ same condition
CEL p.Val626fs Likely pathogenic ★ same condition
CEL p.557ATPVPPTGDSE[1] Uncertain significance ★ same condition
CEL p.Ala601fs Conflicting classifications of pathogenicity ★ same condition
CEL p.Ala733_Lys743del Uncertain significance ★ same condition
CEL p.Asp719fs Uncertain significance ★ same condition
CEL p.Gly166fs Uncertain significance ★ same condition
CEL p.Gly721_Ser731del 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/cel-p-val156fs (accessed [today's date]).

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