tropocollagen

tropocollagen
The fundamental units of collagen fibrils, consisting of three helically arranged polypeptide chains.

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tro·po·col·la·gen .träp-ə-'käl-ə-jən, .trōp- n a subunit of collagen fibrils consisting of three polypeptide strands arranged in a helix

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n.
the molecular unit of collagen. It consists of a helix of three collagen molecules: this arrangement confers on the fibres structural stability and resistance to stretching.

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tro·po·col·la·gen (tro″po-kolґə-jən) [tropo- + collagen] the basic structural unit of collagen; a helical structure consisting of three polypeptide chains, each chain composed of about a thousand amino acids, coiled around each other to form a spiral and stabilized by inter- and intrachain covalent bonds. It is rich in glycine, which occurs nearly one residue out of three, as well as in proline, hydroxyproline, and hydroxylysine; the last two rarely occur in other proteins.

Medical dictionary. 2011.

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Look at other dictionaries:

  • tropocollagen — noun Date: 1954 a subunit of collagen fibrils consisting of three polypeptide strands arranged in a helix …   New Collegiate Dictionary

  • tropocollagen — Subunit from which collagen fibrils self assemble: generated from procollagenby proteolytic cleavage of the extension peptides …   Dictionary of molecular biology

  • tropocollagen — tro·po·col·la·gen (trō pə kŏlʹə jən, trŏp ə ) n. The molecular component of a collagen fiber, consisting of three polypeptide chains coiled around each other. * * * …   Universalium

  • tropocollagen — tro·po·collagen …   English syllables

  • tropocollagen — n. the molecular unit of collagen. It consists of a helix of three collagen molecules: this arrangement confers on the fibres structural stability and resistance to stretching …   The new mediacal dictionary

  • tropocollagen — trop•o•col•la•gen [[t]ˌtrɒp əˈkɒl ə dʒən, ˌtroʊ pə [/t]] n. bio the protein substance from which collagen fibers are formed • Etymology: 1950–55 …   From formal English to slang

  • tropocollagen — ¦träpə, rōpəˌ noun Etymology: trop (I) + collagen : a subunit of collagen fibrils consisting of three polypeptide strands arranged in a helix …   Useful english dictionary

  • Тропоколлаген (Tropocollagen) — структурная единица коллагена. Три полипептидные цепи (около 1000 аминокислот каждая), скручиваясь, образуют молекулу тропоколлагена размерами 380 х 1,5 нм. Каждая спираль состоит из многократно повторяющихся триад аминокислот, из которых третья… …   Медицинские термины

  • Collagen — Tropocollagen triple helix Collagen /ˈkɒlədʒɨn/ is a group of naturally occurring proteins found in animals, especially in the flesh and connective tissues of mammals.[1] It is the main component of connectiv …   Wikipedia

  • ТРОПОКОЛЛАГЕН — (tropocollagen) структурная единица коллагена. Три полипептидные цепи (около 1000 аминокислот каждая), скручиваясь, образуют молекулу тропоколлагена размерами 380 х 1,5 нм. Каждая спираль состоит из многократно повторяющихся триад аминокислот, из …   Толковый словарь по медицине

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