SON p.Arg2000Thr
c.5999G>C · VCV4718190
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely pathogenic
0.9821 · ACMG-weighted
gnomAD v4.1
Absent
absent from gnomAD v4.1
Missense predictors
2/3 damaging
AlphaMissense, REVEL, SaProt
Computational evidence
| Protein change | ||
| AlphaMissense | 0.9821 | likely pathogenic · top 8% in SON |
|---|---|---|
| REVEL | 0.072 | moderately benign-leaning |
| SaProt | LLR -11.67 | damaging |
| ⇒ AlphaMissense and SaProt call this damaging; REVEL does not. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 0.71 | GERP 3.5, phastCons 0.74 |
| Regional constraint | o/e 0.62 | unconstrained · MANE · 2,181 bp · p 1.3e-08 · regional, not allelic |
| Overall | ||
| CADD | 24.2 | 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
- SON
- Protein
- p.Arg2000Thr
- Coding
- c.5999G>C
- MANE Select
- NM_138927
- Type
- single nucleotide variant
- Location
- chr21:33555230 (GRCh38)
- Gene constraint
- LOEUF 0.051 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 36.48 · 4 PDB
- Residue 2000
- the 'disordered' region; the '2 x 19 aa repeats of p-s-r-r-r-r-s-r-s-v-v-r-r-r-s-f-s-i-s' region
Similar variants
- SON p.Arg2000del Uncertain significance ★ same residue
- SON c.6321+1G>A Pathogenic ★★ same type
- SON p.Arg1081Ter Pathogenic ★★ same type
- SON p.Arg1112Ter Pathogenic ★★ same type
- SON p.Arg1825Ter Pathogenic ★★ same type
- SON p.Arg2008Ter Pathogenic ★★ same type
- SON p.Gln96Ter Pathogenic/Likely pathogenic ★★ same type
- SON c.6657+160A>C 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/son-p-arg2000thr (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown