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・ Beta-Bungarotoxin
・ Beta-Carboline
・ Beta Equulei
・ Beta Eridani
・ Beta ferrite
・ Beta Flight
・ Beta Fornacis
・ Beta function
・ Beta function (accelerator physics)
・ Beta function (disambiguation)
・ Beta function (physics)
・ Beta Gamma Sigma
・ Beta globulins
・ Beta Gruis
・ Beta hairpin
Beta helix
・ Beta Herculis
・ Beta Hi Chahiye
・ Beta Ho To Aisa
・ Beta Horologii
・ Beta Hydrae
・ Beta Hydri
・ Beta hydroxy acid
・ Beta Indi
・ Beta integral
・ Beta Island
・ Beta Island, Bermuda
・ Beta Israel
・ Beta Kappa Chi
・ Beta Lacertae


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Beta helix : ウィキペディア英語版
Beta helix

A beta helix is a protein structure formed by the association of parallel beta strands in a helical pattern with either two or three faces. The beta helix is a type of solenoid protein domain. The structure is stabilized by inter-strand hydrogen bonds, protein-protein interactions, and sometimes bound metal ions. Both left- and right-handed beta helices have been identified.
==Two-stranded helices==
The simplest beta helix contains two "layers" of beta sheets connected by glycine-rich six-residue loops that invariably contain an aspartate to bind one calcium ion per loop. Each layer consists of a nearly-planar series of parallel hydrogen-bonded beta strands and the two layers together enclose a hydrophobic core.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Beta helix」の詳細全文を読む



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