CGN p.Arg547Lys
c.1640G>A · rs142913144 · VCV781664
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.118 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 4.5 | GERP -0.8, phastCons 1 |
| Regional constraint | o/e 0.97 | unconstrained · MANE · 16 kb · p 0.38 · regional, not allelic |
| Overall | ||
| CADD | 17.56 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Finnishnot grpmax-eligible | 1.41% | 71 |
| European (non-Finnish)grpmax | 1.29% | 77 |
| Remaining individualsnot grpmax-eligible | 0.913% | 110 |
| Admixed American | 0.417% | 240 |
| Middle Eastern | 0.283% | 354 |
| African / African-American | 0.21% | 477 |
| South Asian | 0.011% | 9,071 |
| East Asian | 0.00226% | 44,212 |
Finnish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.
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
- CGN
- Protein
- p.Arg547Lys
- Coding
- c.1640G>A
- MANE Select
- NM_020770
- dbSNP
- rs142913144
- Type
- single nucleotide variant
- Location
- chr1:151525667 (GRCh38)
- Gene constraint
- LOEUF 0.88 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 70.44
Similar variants
- CGN p.Ala357= Benign/Likely benign ★★ same type
- CGN p.Arg11Trp Likely benign ★★ same type
- CGN p.Arg227Trp Likely benign ★★ same type
- CGN p.Arg973Gln Benign ★★ same type
- CGN p.Glu771Lys Benign/Likely benign ★★ same type
- CGN p.Ile60= Benign ★★ same type
- CGN p.Ala1035Thr Uncertain significance ★ same type
- CGN p.Ala142Val 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/cgn-p-arg547lys (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown