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C2CD3 p.His1263=

c.3789T>C · rs147253969 · VCV760256

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.22%, afr)

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 3.5GERP -0.57, phastCons 1
Overall
CADD5.371PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.22% African / African-American · 165/75,040 alleles
Filtering AF 0.192% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.182%
Overall 0.011% 177/1,614,186 alleles · rare exomes 96/1,461,884 · genomes 81/152,302 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.22% 455
Remaining individualsnot grpmax-eligible 0.0048% 20,835
South Asian 0.0022% 45,543
Admixed American 0.00167% 60,030
European (non-Finnish) 0.000508% 196,672

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
C2CD3
Protein
p.His1263=
Coding
c.3789T>C
MANE Select
NM_001286577
dbSNP
rs147253969
Type
single nucleotide variant
Location
chr11:74085739 (GRCh38)
Gene constraint
LOEUF 0.637 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 55.65
Residue 1263
the c2 4 domain
Full C2CD3 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/c2cd3-p-his1263 (accessed [today's date]).

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