title: The hands of helical lattices in flagellar doublet microtubules.
mesh_terms: D000818:Animals; D005407:Flagella; D008297:Male; D008854:Microscopy, Electron; D008870:Microtubules; D008974:Mollusca / Q000166:cytology; D010507:Periodicity; D011506:Proteins; D013094:Spermatozoa / Q000166:cytology
chemical_list: D011506:Proteins