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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:increased skeletal muscle fiber size
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Accession:MP:0009399 term browser browse the term
Definition:increase in the size of the large multinucleated cells that make up the skeletal muscles
Synonyms:exact_synonym: increased skeletal muscle fibre size;   skeletal muscle fiber hypertrophy;   skeletal muscle fibre hypertrophy
 alt_id: MP:0003399

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increased skeletal muscle fiber size term browser
Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Mstn myostatin IMP compared to wild type RGD PMID:25640143 RGD:151347429 NCBI chr 9:48,453,982...48,458,809
Ensembl chr 9:48,452,533...48,458,933
JBrowse link
G Mstnem1Mcwi myostatin; zinc finger nuclease induced mutant 1, Medical College of Wisconsin IMP compared to wild type RGD PMID:25640143 RGD:151347429

Term paths to the root
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Term Annotations click to browse term
  mammalian phenotype 5372
    muscle phenotype 190
      abnormal muscle morphology 93
        abnormal muscle fiber morphology 15
          abnormal skeletal muscle fiber morphology 8
            abnormal skeletal muscle fiber size 8
              increased skeletal muscle fiber size 3
                increased skeletal muscle fiber diameter 0
paths to the root