Cloning and characterization of a myosin from characean alga, the fastest motor protein in the world

Taku Kashiyama, Naohiro Kimura, Tetsuro Mimura, Keiichi Yamamoto

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

In characean algae, very rapid cytoplasmic streaming is generated by sliding movement of an unconventional myosin on fixed actin cables. The speed of this sliding movement is the fastest among many molecular motors known so far. We have cloned a set of overlapping cDNAs encoding the heavy chain of this myosin by immunoscreening with antibody raised against characean myosin. The molecular mass of this heavy chain is 248 kDa, and the protein has a conserved motor domain, six IQ motifs, an extensive α-helical coiled-coil domain, and a C-terminal globular domain. Phylogenetic analysis suggested that this myosin belongs to class XI.

Original languageEnglish
Pages (from-to)1065-1070
Number of pages6
JournalJournal of biochemistry
Volume127
Issue number6
DOIs
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology

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