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C1QA p.Lys110=

c.330G>A · rs767465436 · VCV1571332

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.48e-05%, nfe)

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 0.79GERP -1.9, phastCons 0.6
Overall
CADD5.414PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 8.48e-05% European (non-Finnish) · 1/1,179,500 alleles
Overall 6.85e-05% 1/1,460,782 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
C1QA
Protein
p.Lys110=
Coding
c.330G>A
MANE Select
NM_015991
dbSNP
rs767465436
Type
single nucleotide variant
Location
chr1:22638999 (GRCh38)
Gene constraint
LOEUF 0.997 · pLI 0.06 (gnomAD)
Structure
AlphaFold pLDDT 83.68 · 11 PDB
Residue 110
the c1q domain; the 'disordered' region
Full C1QA 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/c1qa-p-lys110 (accessed [today's date]).

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