secondary structure

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Related to secondary structures: tertiary structures

secondary structure

n.
The three-dimensional structure of the polypeptide backbone of a protein (such as alpha helix, beta sheet, and coil patterns), or the sugar-phosphate backbone of a nucleic acid (such as the double helix pattern of DNA).
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References in periodicals archive ?
Secondary structure analysis: Publically available Mfold web server athttp://unafold.rna.albany.edu/?q=mfold was used for the prediction of secondary structures.
The expression of the pseudogenes was evaluated on the basis of free energy values (MFE) of the secondary structures of their mRNAs.
The conformational sensitive amide I band, which is primarily caused by the carbonyl stretching vibrations of the protein backbone and appears in the range between 1700 and 1600 [cm.sup.-1], is frequently used in the assignment of proteins' different secondary structures [28].
Specific commercial programs covered include the A350XWB secondary structures, A380, the A320 and A330 family and ATR commercial aircraft.
It has won qualification by The Boeing Company to manufacture secondary structures, such as wing movable flaps and engine nacelles, as well as interior applications.
Specifically, [alpha]-helices and [beta]-sheets in the protein secondary structures can affect digestibility of feed proteins (Dyson and Wright, 1993).
The businesses are leaders in the design, development and production of highly engineered aerospace composite engine components (spinners, internal multi-stage components, exhaust flaps), radomes (C4I and defensive measures radomes, with a growing position in civil radomes) and complex secondary structures (air-to-air refuelling, structural munitions components).
Without Prkci, the stem cells favored self-renewal, generating large numbers of stem cells and, subsequently, an abundance of secondary structures.
Cytec Aerospace Materials supplies composite materials for the commercial and military aerospace markets, manufacturing advance material solutions for unique and demanding aerospace applications including primary and secondary structures, interiors, engines and nacelles.