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Updated: Jul 5, 2025
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In vitro Synthesis of Native, Fibrous Long Spacing and Segmental Long Spacing Collagen
Published on: September 20, 2012
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Carbohydrate Co-Solutes Stabilize Collagen Triple Helices
Kota Nomura1, Tomas Fiala1, Helma Wennemers1
1Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland.
Chembiochem : a European Journal of Chemical Biology
|January 17, 2024
Summary
Common sugars stabilize collagen triple helices, increasing their melting temperature by up to 17°C. This study reveals sugars
Area of Science:
- Biochemistry
- Materials Science
- Protein Chemistry
Background:
- Carbohydrates are widely used as co-solutes to enhance protein stability.
- The impact of carbohydrates on collagen, the most abundant mammalian protein, remains understudied.
- Collagen's unique triple helix structure is crucial for its function and stability.
Purpose of the Study:
- To investigate the effect of various carbohydrate solutions on the thermal stability of collagen.
- To determine the concentration-dependent stabilization of collagen triple helices by sugars.
- To compare the stabilizing efficacy of different mono- and disaccharides on collagen.
Main Methods:
- Utilized a molecularly defined collagen model peptide (CMP), Ac-(Pro-Hyp-Gly)7-NH2.
- Assessed thermal stability of CMP in solutions containing six common mono- and disaccharides.
- Measured the melting temperature (Tm) of collagen triple helices as a function of sugar concentration.
Main Results:
- All tested carbohydrates demonstrated a concentration-dependent stabilization of the collagen triple helix.
- Melting temperatures increased by up to 17°C in the presence of sugar co-solutes.
- The stabilizing effect was comparable across all tested sugars, including trehalose.
Conclusions:
- Sugar co-solutes effectively enhance the thermal stability of collagen triple helices.
- The findings provide valuable insights into sugar-protein interactions with collagen.
- Results can guide the selection of optimal storage conditions for collagen-based biomaterials and diagnostic probes.
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