TSHR p.Cys548=
c.1644C>T · rs771426109 · VCV754977
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.005%, 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 2.8 | GERP 3.8, phastCons 1 |
| Overall | ||
| CADD | 9.651 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.005%
Admixed American · 3/60,030 alleles
Filtering AF
0.00133%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000668%
Overall
0.000205%
3/1,461,888 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
- TSHR
- Protein
- p.Cys548=
- Coding
- c.1644C>T
- MANE Select
- NM_000369
- dbSNP
- rs771426109
- Type
- single nucleotide variant
- Location
- chr14:81143702 (GRCh38)
- Gene constraint
- LOEUF 1.012 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 73.67 · 9 PDB
- Residue 548
- an α-helix; a disulfide bond
Similar variants
- TSHR p.Cys548Phe Uncertain significance ★ ⚠ same residue
- TSHR c.881+1G>A Pathogenic/Likely pathogenic ★★ same type
- TSHR c.881+1G>T Pathogenic/Likely pathogenic ★★ same type
- TSHR p.Ala553Thr Pathogenic/Likely pathogenic ★★ same type
- TSHR p.Arg109Gln Pathogenic/Likely pathogenic ★★ ⚠ same type
- TSHR p.Arg450His Pathogenic/Likely pathogenic ★★ ⚠ same type
- TSHR p.Arg519Cys Pathogenic ★★ same type
- TSHR p.Arg519His Pathogenic/Likely 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/tshr-p-cys548 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown