FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
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Term radial spoke 2 ID (Ontology) GO:0120334 (Gene Ontology)
Definition The radial spoke of each group of radial spokes, whether grouped as triplets or doublets, that is immediately distal to radial spoke 1 (RS1). Radial spoke 2 (RS2), similarly to RS1, is comprised of four domains: 1) a very short base anchored to the A microtubule, 2) an elongaged stalk, 3) a bifurcated neck, and 4) an orthogonal head. The base of RS2 is connected to the tail of the inner dynein arm c.[ PubMed:22754630 ]
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axoneme_____________________
protein-containing complex__|
                            radial spoke
                             |__radial spoke 2
                                 |__radial spoke base 2
                                 |__radial spoke head 2
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