FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term Troyer syndrome ID (Ontology) DOID:0050886 (Human Disease)
Definition A hereditary spastic paraplegia that is characterized by spasticity of the leg muscles, progressive muscle weakness, paraplegia, muscle wasting in the hands and feet (distal amyotrophy), small stature, developmental delay, learning disorders, speech difficulties (dysarthria), and mood swings, and has_material_basis_in a mutation of the SPG20 gene.
Also Known As "autosomal recessive spastic paraplegia 20" ; "autosomal recessive spastic paraplegia Troyer type" ; "autosomal recessive spastic paraplegia type 20" (for all, see Synonyms field below)
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Data Class Field Records
Alleles (FBal)  HUMAN_DISEASE_INTERACTIONS       7
Human Disease Models (FBhh)  DOID       1
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Relevant FlyBase reports
 Alleles Genes Human Disease Models
 Troyer syndrome       7      6      1
 ameliorates | Troyer syndrome       3       --       --
 exacerbates | Troyer syndrome       3       --       --
 for disease ribbon | Troyer syndrome       --       1       --
 model of | Troyer syndrome       1      1       --
Spanning Tree (Parents/Children)
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autosomal genetic disease
 |__autosomal recessive disease____
paraplegia                         |
 |__hereditary spastic paraplegia__|
                                   Troyer syndrome  14 rec.
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Is a autosomal recessive disease
hereditary spastic paraplegia
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Synonyms
  • "autosomal recessive spastic paraplegia 20" EXACT
    "autosomal recessive spastic paraplegia Troyer type" EXACT
    "autosomal recessive spastic paraplegia type 20" EXACT
    "childhood-onset spastic paraparesis with distal muscle wasting" EXACT
    "hereditary spastic paraplegia 20" EXACT
    "spastic paraplegia 20" EXACT
    "spastic paraplegia type 20" EXACT
    "SPG20" EXACT OMO:0003012
Secondary IDs
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GARD:5372
ICD10CM:G11.4
MIM:275900
ORDO:101000