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CD40 p.Ser113=

c.339T>C · rs886056717 · VCV338572

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.000254%, nfe)
Conditions
1
hyper-IgM syndrome type 3

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
ConservationphyloP -2.4GERP -3.5
Overall
CADD1.064PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000254% European (non-Finnish) · 3/1,179,974 alleles
Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%
Overall 0.000205% 3/1,461,890 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
CD40
Protein
p.Ser113=
Coding
c.339T>C
MANE Select
NM_001250
dbSNP
rs886056717
Type
single nucleotide variant
Location
chr20:46122692 (GRCh38)
Gene constraint
LOEUF 0.677 · pLI 0.03 (gnomAD)
Structure
AlphaFold pLDDT 81.10 · 14 PDB
Residue 113
a disulfide bond; a β-strand
Full CD40 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/cd40-p-ser113 (accessed [today's date]).

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