FREM2 p.Arg121=
c.363C>T · rs1199695204 · VCV2791897
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00178%, amr)
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 | ||
| Conservation | phyloP 1.1 | GERP -0.51, phastCons 1 |
| Overall | ||
| CADD | 12.99 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00178%
Admixed American · 1/56,068 alleles
Overall
0.000128%
2/1,566,824 alleles · very rare
exomes 1/1,414,572 · genomes 1/152,252 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00178% | 56,068 |
| European (non-Finnish) | 8.67e-05% | 1,154,040 |
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
- FREM2
- Protein
- p.Arg121=
- Coding
- c.363C>T
- MANE Select
- NM_207361
- dbSNP
- rs1199695204
- Type
- single nucleotide variant
- Location
- chr13:38687707 (GRCh38)
- Gene constraint
- LOEUF 0.588 · pLI <0.01 (gnomAD)
Similar variants
- FREM2 p.Arg121His Uncertain significance ★ ⚠ same residue
- FREM2 c.5263+1G>A Likely pathogenic ★★ same type
- FREM2 c.6925+1G>T Likely pathogenic ★★ same type
- FREM2 p.Arg1355Ter Pathogenic/Likely pathogenic ★★ same type
- FREM2 p.Arg2243Ter Pathogenic/Likely pathogenic ★★ same type
- FREM2 p.Arg638Ter Likely pathogenic ★★ same type
- FREM2 p.Arg736Ter Pathogenic ★★ same type
- FREM2 p.Arg809Ter Pathogenic ★★ 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/frem2-p-arg121 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown