Protein complex forming portion of the radial spoke that is orthogonal to the elongated stalk and which projects towards the central pair of microtubules within the ciliary or flagellum axoneme. [GOC:cilia, GOC:hjd, GOC:krc, PMID:22754630, PMID:34871179]
Full description or abstract
Collection
C5: Ontology GO: Gene Ontology GO:CC: GO Cellular Component