FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
CV Term Report
Help Close All Open All
General Information
Term A band ID (Ontology) GO:0031672 (Gene Ontology)
Definition The dark-staining region of a sarcomere, in which myosin thick filaments are present; the center is traversed by the paler H zone, which in turn contains the M line.[ ISBN:0321204131 ]
Also Known As "A disc" ; "anisotropic disc" ; "Q disc" (for all, see Synonyms field below)
Comment
Links to External Ontologies
  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS

Choose a record type to view annotations for this term and its child terms. Direct annotations and full annotation statements below also provide HitList buttons.

  • Results list data from multiple species. Choose a record type above to open its HitList.
Direct annotations: records annotated with this exact term (child terms are NOT included)
Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Genes (FBgn)GO_CELLULAR_COMPONENT
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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
 A band (all annotations which use CV term, excluding "NOT" statements)
     A band | adult stage | progressive
      --
     A band | larval stage
      --
     located_in | A band       --
      --
Spanning Tree (Parents/Children)
Only view relationship:
Vocabulary search
cellular_component
 |__cellular anatomical structure__
myofibril                          |
 |__sarcomere______________________|
cellular anatomical structure      |
 |__sarcomere______________________|
                                   A band  94 rec.
                                    |__C zone
                                    |__H zone 16 rec.
                                    |__M band 74 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a cellular anatomical structure
Part of sarcomere
hide Synonyms & Secondary IDs
Synonyms
  • "A disc" EXACT
    "anisotropic disc" EXACT
    "Q disc" EXACT
    "transverse disc" EXACT
Secondary IDs
hide External Crossreferences & Linkouts
Wikipedia:Sarcomere#bands