CDC45 c.342+4C>G
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000678%, nfe)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal. | ||
| Splicing | ||
| Splice region | donor +4 | donor splice region (+4, within the first 6 intronic nt) · inside the BP7-excluded zone |
|---|---|---|
| SpliceAI | Δ0.21 | donor loss · deltas |
| Pangolin | Δ0.35 | loss · gain 0.02 · agrees with SpliceAI · independent |
| Constraint at this position | ||
| Conservation | phyloP 0.23 | GERP -0.72, phastCons 0.004 |
| Non-coding constraint | Z 1.69 | 1 kb window · o/e 0.88 · regional · uncalibrated |
| Overall | ||
| CADD | 6.839 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.000678%
European (non-Finnish) · 8/1,179,694 alleles
Filtering AF
0.000292%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000211%
Overall
0.000547%
8/1,461,422 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
- CDC45
- Coding
- c.342+4C>G
- MANE Select
- NM_003504
- Type
- single nucleotide variant
- Location
- chr22:19482831 (GRCh38)
- Gene constraint
- LOEUF 0.77 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 92.59 · 7 PDB
Similar variants
- CDC45 p.Pro463Leu Pathogenic/Likely pathogenic ★★ ⚠ same type
- CDC45 c.653+4C>T Uncertain significance ★★ same type
- CDC45 p.Ala373Val Uncertain significance ★★ ⚠ same type
- CDC45 p.Ala38Asp Uncertain significance ★★ ⚠ same type
- CDC45 p.Arg157His Uncertain significance ★★ ⚠ same type
- CDC45 p.Arg175Gln Uncertain significance ★★ ⚠ same type
- CDC45 p.Arg251His Uncertain significance ★★ ⚠ same type
- CDC45 p.Arg269Trp Uncertain significance ★★ ⚠ same type
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/cdc45-c-342-plus-4c-g (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown