WormMine: AnatomyTerm WBbt:0006911

• Definition: specialized musle type of the male spicule.
• Name: spicule muscle
• Primary Identifier: WBbt:0006911
• Synonym: mu_male_spic

2 Children

Definition	Name	Synonym	Primary Identifier
	spicule retractor muscle		WBbt:0005827
	spicule protractor muscle		WBbt:0005826

0 Expression Clusters

2 Expression Patterns

• Primary Identifier: Expr9488
• Pattern: Transgenic animals expressed this reporter specifically in muscle. Strong expression was observed in muscle cells in embryos. Adult expression was seen in striated body-wall muscle along the length of the animal, especially in the head. Strong expression was also seen in the vulval muscles. Additional expression was observed in intestinal muscle, anal sphincter muscle and the sex-specific muscles of the male tail. No expression was observed in pharyngeal muscle.
• Subcellular Localization: Sub-cellular localization within the body wall muscle: Nucleus only

• Primary Identifier: Expr14483
• Subcellular Localization: sorb-1::gfp was strongly expressed in all body wall muscles, where the protein tagged with green fluorescent protein (GFP) localized to adhesion plaques between myocytes and to dense bodies. SORB-1::GFP was also observed in muscle arm attachment sites at the nerve ring, where protrusions from head muscles form contacts with the basement membrane (White et al., 1986). SORB-1::GFP was also observed in all nonstriated muscles of C. elegans with the exception of the pharynx, localizing exclusively to integrin adhesion sites. Fluorescent signal localized strongly to the origins and insertions of the vulval and anal depressor muscles as well as to the spicule-associated and diagonal muscles of the male tail. In myocytes more closely resembling vertebrate smooth muscle, such as the uterus, stomatointestinal muscle, and proximal gonad sheath, GFP signal was present in small puncta present throughout the tissue).

0 Life Stages

3 Parents

Definition	Name	Synonym	Primary Identifier
	copulatory spicule		WBbt:0005312
Any muscle cell that is not pharyngeal.	body muscle cell		WBbt:0007810
Muscle cell that has either one or a few well-structured sarcomeres or myofilament networks that are less well organized.	non-striated muscle	non-striated muscle cell	WBbt:0005780