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helix |
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helixIn mathematics, a three-dimensional curve resembling a spring, corkscrew, or screw thread. It is generated by a line that encircles a cylinder or cone at a constant angle. Helix
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In one case, that of a glucocorticoid receptor protein, they found a
specific spiral structure -- an alpha-helix -- that appears to spur
transcription. Whereas a single alpha-helix consists of an elegant spiral of 15 to
20 amino acids, the beta sheet requires 60 to 70 amino acids. Previous research established that an alpha-helix protein is an
electric dipole. |
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