Scanning tunneling microscopy of a wheat seed storage protein reveals details of an unusual supersecondary structure.
basic_science · Level V
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- Record sourced from PubMed, PMID 11607142.
- Also identified by PMC identifier 50749.
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Abstract
Scanning tunneling microscopy has been used to demonstrate that a spiral structure based on beta-reverse turns is adopted by the repeat sequences present in a group of wheat gluten proteins. This structure is similar to the beta-spiral formed by a synthetic polypentapeptide based on a repeat sequence present in elastin. Wheat gluten and elastin are both elastomeric and it is possible that the spiral structure contributes to this property.