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CTR9 c.741+4T>C

rs1405152063 · VCV1354875

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00507%, amr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
Splice regiondonor +4donor splice region (+4, within the first 6 intronic nt) · inside the BP7-excluded zone
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 0.055GERP 0.75, phastCons 0.89
Non-coding constraintZ 2.901 kb window · o/e 0.79 · regional · uncalibrated
Overall
CADD18.21PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00507% Admixed American · 3/59,204 alleles
Filtering AF 0.00135% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000673%
Overall 0.000206% 3/1,455,862 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
CTR9
Coding
c.741+4T>C
MANE Select
NM_014633
dbSNP
rs1405152063
Type
single nucleotide variant
Location
chr11:10760325 (GRCh38)
Gene constraint
LOEUF 0.368 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 76.62 · 21 PDB
Full CTR9 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/ctr9-c-741-plus-4t-c (accessed [today's date]).

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