MAPT p.Arg771=
c.2313C>A · rs373462041 · VCV1120381
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.47e-05%, nfe)
Conditions
1
frontotemporal dementia
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 -12 | GERP -14 |
| Overall | ||
| CADD | 0.058 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
8.47e-05%
European (non-Finnish) · 1/1,180,040 alleles
Overall
6.2e-05%
1/1,614,122 alleles · very rare
exomes 1/1,461,796 · genomes 0/152,326 · joint denominator
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
- MAPT
- Protein
- p.Arg771=
- Coding
- c.2313C>A
- MANE Select
- NM_001377265
- dbSNP
- rs373462041
- Type
- single nucleotide variant
- Location
- chr17:46023982 (GRCh38)
- Gene constraint
- LOEUF 0.723 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 49.56 · 299 PDB
Similar variants
- MAPT p.Arg771His Uncertain significance ★ ⚠ same residue
- MAPT c.1999-10G>T Pathogenic ★★ same condition
- MAPT c.2091+16C>T Pathogenic ★★ same condition
- MAPT c.2091+3G>A Pathogenic ★★ same condition
- MAPT p.Arg798Trp Pathogenic ★★ ⚠ same condition
- MAPT p.Asn671Lys Pathogenic ★★ ⚠ same condition
- MAPT p.Asn688= Pathogenic ★★ same condition
- MAPT p.Gln728His Pathogenic/Likely pathogenic ★★ ⚠ same condition
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/mapt-p-arg771 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown