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CNNM2 p.Ile566=

c.1698C>T · rs371434890 · VCV749699

Benign/Likely benign Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0254%, 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 -0.57GERP -4.6, phastCons 0.077
Overall
CADD7.01PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0254% African / African-American · 19/74,900 alleles
Filtering AF 0.0166% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0137%
Overall 0.00143% 23/1,613,546 alleles · ultra-rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0254% 3,942
East Asian 0.00446% 22,446
South Asian 0.0022% 45,541

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
CNNM2
Protein
p.Ile566=
Coding
c.1698C>T
MANE Select
NM_017649
dbSNP
rs371434890
Type
single nucleotide variant
Location
chr10:103049783 (GRCh38)
Gene constraint
LOEUF 0.312 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 71.70 · 7 PDB
Residue 566
the cbs 2 domain; a β-strand
Full CNNM2 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/cnnm2-p-ile566 (accessed [today's date]).

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