Word.ws English Dictionary

protofilament

protofilament noun: a filament of polymerized tubulin in a cell, which becomes part of a microtubule.

Noun

protofilament (plural protofilaments)

  1. A filament of polymerized tubulin in a cell, which becomes part of a microtubule
    • The MreB crystal contained a straight, single-stranded protofilament[…].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

Forms of protofilament

pluralprotofilaments

Origin of protofilament

From proto- + filament.

Questions about protofilament

What does protofilament mean?
Protofilament means a filament of polymerized tubulin in a cell, which becomes part of a microtubule.
What part of speech is protofilament?
Protofilament is a noun.
What is the plural of protofilament?
The plural of protofilament is protofilaments.

Words near protofilament in the dictionary

  1. protofibrillar
  2. protofibrillary
  3. protofibrillization
  4. protofibrillogenesis
  5. protofibrils
  6. protofilament
  7. protofilaments
  8. protoflexid
  9. protoflexids
  10. protoflexus
  11. protoflight

Source and license

Adapted from Wiktionary: protofilament (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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