English

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Etymology

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From proto- +‎ filament.

Noun

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protofilament (plural protofilaments)

  1. A filament of polymerized tubulin in a cell, which becomes part of a microtubule
    • 2008 January 22, Mitsusada Iwasa Toshiro Oda, Akihiro Narita da, “The nature of the globular- to fibrous-actin transition”, in Nature, volume 457, number 7228, →DOI:
      The MreB crystal contained a straight, single-stranded protofilament [] .