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Related Concept Videos

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Fibril-associated collagens are a type of collagens present in the extracellular matrix with interrupted triple helices or FACIT (Fibril-associated collagens interrupted triple-helices). FACIT help connect and attach the collagen fibrils with each other as well as with other proteins of the extracellular matrix.
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Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long, straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the body's movement.
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Bioengineered collagens: emerging directions for biomedical materials.

John A M Ramshaw1, Jerome A Werkmeister1, Geoff J Dumsday1

  • 1CSIRO Materials Science and Engineering; Clayton, Australia.

Bioengineered
|April 11, 2014
PubMed
Summary
This summary is machine-generated.

Bacterial collagens offer a promising alternative to mammalian collagen for biomedical applications. These novel proteins are stable, produced in high yields from E. coli, and avoid animal-based disease transmission risks.

Keywords:
biomedical materialcollagenprokaryoterecombinant expressionthermal stabilitytissue engineeringtriple helix

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Area of Science:

  • Biomaterials Science
  • Biotechnology
  • Molecular Biology

Background:

  • Mammalian collagen is a widely used biomedical material.
  • Concerns exist regarding preparation variability and potential animal-based disease transmission.
  • Bioengineered mammalian collagens face manufacturing challenges.

Purpose of the Study:

  • To explore alternative collagen sources for biomedical applications.
  • To address limitations associated with mammalian collagen production.
  • To investigate the potential of newly identified bacterial collagens.

Main Methods:

  • Identification and characterization of novel bacterial collagens.
  • Production and purification of bacterial collagens from E. coli.
  • Assessment of bacterial collagen stability and suitability for biomedical use.

Main Results:

  • A new class of bacterial collagens with a characteristic triple helical structure was identified.
  • These bacterial collagens are stable without hydroxyproline.
  • High yields of bacterial collagens were achieved through E. coli production and purification.

Conclusions:

  • Bacterial collagens represent a viable alternative to mammalian collagens.
  • Their stability and high-yield production in E. coli make them suitable for biomedical applications.
  • This overcomes challenges associated with traditional collagen sources and bioengineering efforts.