The hands of helical lattices in flagellar doublet microtubules

R. W. Linck, L. A. Amos

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


Negatively stained arrays of flagellar doublet microtubules were tilted about an axis perpendicular to the tubule axes and imaged at angles of ±20°. The images were filtered to enhance the 4 nm periodicities in the tubulin lattice, and the resulting filtered images interpreted by comparison with simulated projections of tilted helical lattices. The different appearances of the edges of filtered doublet tubules for positive and negative tilt angles suggest that the 4 nm lattices of both subfibres are of the same hand, with the 3 start helices in each being left handed. The information was incorporated in a model proposed for the arrangement of subunits in doublet microtubules.

Original languageEnglish (US)
Pages (from-to)551-559
Number of pages9
JournalJournal of cell science
Issue number3
StatePublished - 1974
Externally publishedYes


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