PREP p.Cys343Ser
c.1028G>C · VCV4571934
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
ambiguous
0.4208 · ACMG-weighted
gnomAD v4.1
Absent
absent from gnomAD v4.1
Computational evidence
| Protein change | ||
| AlphaMissense | 0.4208 | ambiguous |
|---|---|---|
| REVEL | 0.398 | indeterminate |
| SaProt | LLR -8.47 | tolerated |
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 7.7 | GERP 2.4, phastCons 1 |
| Overall | ||
| CADD | 26.2 | PHRED · no single calibrated threshold — expert panels disagree |
AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.
Population frequency
gnomAD v4.1 · exomes + genomes
Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.
Variant & gene context
- Gene
- PREP
- Protein
- p.Cys343Ser
- Coding
- c.1028G>C
- MANE Select
- NM_014889 · reported on NM_002726
- Type
- single nucleotide variant
- Location
- chr6:105329014 (GRCh38)
- Structure
- AlphaFold pLDDT 94.44 · 8 PDB
- Residue 343
- a disulfide bond; an α-helix
Similar variants
- PITRM1 p.Ala343Thr Uncertain significance ★ ⚠ same residue
- PITRM1 p.Thr931Met Pathogenic/Likely pathogenic ★★ same type
- PITRM1 p.Ala1003Thr Uncertain significance ★★ ⚠ same type
- PITRM1 p.Ala559Val Uncertain significance ★★ ⚠ same type
- PITRM1 p.Ala887Val Uncertain significance ★★ ⚠ same type
- PITRM1 p.Ala942Val Uncertain significance ★★ ⚠ same type
- PITRM1 p.Ala965Thr Uncertain significance ★★ ⚠ same type
- PITRM1 p.Arg32Trp 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/prep-p-cys343ser (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown