FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
CV Term Report
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General Information
Term M band ID (Ontology) GO:0031430 (Gene Ontology)
Definition The midline of aligned thick filaments in a sarcomere; location of specific proteins that link thick filaments. Depending on muscle type the M band consists of different numbers of M lines.[ ISBN:0198506732 ISBN:0815316194 ]
Also Known As "M disc" ; "mesophragma"
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      34
Genes (FBgn)  GO_CELLULAR_COMPONENT      14
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      24
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Constructs
 M band (all annotations which use CV term, excluding "NOT" statements)      34     16     24
     is_active_in | M band       --       3       --
     located_in | M band       --      11       --
     M band | adult stage       3       --       2
     M band | adult stage | progressive       2       --       1
Spanning Tree (Parents/Children)
Only view relationship: 
cellular_component
 |__cellular anatomical structure__
sarcomere                          |
 |__A band_________________________|
cellular anatomical structure      |
 |__A band_________________________|
                                   M band  74 rec.
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Is a cellular anatomical structure
Part of A band
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Synonyms
  • "M disc" EXACT
    "M line" NARROW
    "mesophragma" EXACT
    "midline" BROAD
Secondary IDs
hide External Crossreferences & Linkouts
Wikipedia:Sarcomere#bands