Human Gene Set: GOCC_SPERM_PRINCIPAL_PIECE

For the Mouse gene set with the same name, see GOCC_SPERM_PRINCIPAL_PIECE

Standard name GOCC_SPERM_PRINCIPAL_PIECE
Systematic name M17483
Brief description The segment of the sperm flagellum where the mitochondrial sheath ends, and the outer dense fibers (ODFs) associated with outer axonemal doublets 3 and 8 are replaced by the 2 longitudinal columns of the fibrous sheath (FS) which run the length of the principal piece and are stabilized by circumferential ribs. The principal piece makes up ~2/3 of the length of the sperm flagellum and is defined by the presence of the FS and of only 7 (rather than 9) ODFs which taper and then terminate near the distal end of the principal piece. [GOC:cjm, MP:0009836]
Full description or abstract  
Collection C5: Ontology
      GO: Gene Ontology
            GO:CC: GO Cellular Component
Source publication  
Exact source GO:0097228
Related gene sets  
External links http://amigo.geneontology.org/amigo/term/GO:0097228
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Source species Homo sapiens
Contributed by Gene Ontology (Gene Ontology Consortium)
Source platform or
identifier namespace		 Human_NCBI_Gene_ID
Dataset references  
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Version history 2026.1.Hs: Updated to GO Release 2025-10-10.


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