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CTCF p.Lys244=

c.732A>G · rs753101673 · VCV755205

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00441%, 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 3.5GERP -0.54, phastCons 1
Overall
CADD8.351PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00441% European (non-Finnish) · 52/1,180,048 alleles
Filtering AF 0.00342% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0031%
Overall 0.00335% 54/1,614,112 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00441% 22,693
Remaining individualsnot grpmax-eligible 0.0016% 62,484
African / African-American 0.00133% 74,954

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
CTCF
Protein
p.Lys244=
Coding
c.732A>G
MANE Select
NM_006565
dbSNP
rs753101673
Type
single nucleotide variant
Location
chr16:67611564 (GRCh38)
Gene constraint
LOEUF 0.205 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 59.45 · 21 PDB
Residue 244
a UniProt-annotated variant site (found in an endometrial carcinoma sample; uncertain significance)
Full CTCF 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/ctcf-p-lys244 (accessed [today's date]).

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