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CC2D2A p.Asp1038=

c.3114T>C · rs781371086 · VCV702914

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00335%, amr)
Conditions
2
Joubert syndrome

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 -3.7GERP -5.5
Overall
CADD2.956PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00335% Admixed American · 2/59,746 alleles
Filtering AF 0.000555% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000429%
Overall 0.00118% 19/1,612,018 alleles · very rare exomes 16/1,459,822 · genomes 3/152,196 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.00335% 29,873
Remaining individualsnot grpmax-eligible 0.0032% 31,203
African / African-American 0.00267% 37,454
South Asian 0.0011% 90,518
European (non-Finnish) 0.00102% 98,266

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
CC2D2A
Protein
p.Asp1038=
Coding
c.3114T>C
MANE Select
NM_001378615
dbSNP
rs781371086
Type
single nucleotide variant
Location
chr4:15563454 (GRCh38)
Gene constraint
LOEUF 0.854 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 69.46
Residue 1038
the c2 domain
Full CC2D2A 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/cc2d2a-p-asp1038 (accessed [today's date]).

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