A complete turn in the α helix contains ___ amino acids.
A complete turn in the α helix contains ___ amino acids.
Theα helix andβ conformation arethemajorrepetitive ____________ structuresinawidevarietyofproteins,although other repetitivestructuresexistinsomespecializedproteins.
Theα helix andβ conformation arethemajorrepetitive ____________ structuresinawidevarietyofproteins,although other repetitivestructuresexistinsomespecializedproteins.
The description of the secondary structure of DNA double helix are correct, EXCEPT
The description of the secondary structure of DNA double helix are correct, EXCEPT
Short regions of α helix are especially abundant in proteins that are embedded in cell __________, such as transport proteins and receptors.
Short regions of α helix are especially abundant in proteins that are embedded in cell __________, such as transport proteins and receptors.
a-helix中第n个残基的N-H和第n+4个残基的C=O之间形成氢键。
a-helix中第n个残基的N-H和第n+4个残基的C=O之间形成氢键。
An α helix is generated when a single polypeptide chain turns around itself to form a structurally rigid _______.
An α helix is generated when a single polypeptide chain turns around itself to form a structurally rigid _______.
在使用螺旋线（Helix）命令创建螺旋线时，需要指定哪些选项？
在使用螺旋线（Helix）命令创建螺旋线时，需要指定哪些选项？
Which structure is not secondary structure of the protein？（） A: α-helix B: β- fold C: β- Angle D: subunits
Which structure is not secondary structure of the protein？（） A: α-helix B: β- fold C: β- Angle D: subunits
a-helix中第n个残基的N-H和第n+4个残基的C=O之间形成氢键。 A: 正确 B: 错误
a-helix中第n个残基的N-H和第n+4个残基的C=O之间形成氢键。 A: 正确 B: 错误
Using a right-hand hob with the lead angle ω cuts a left-hand gear with the helix angle β , hob swivel-setting angle δ is: A: ω B: β C: β-ω D: β+ω
Using a right-hand hob with the lead angle ω cuts a left-hand gear with the helix angle β , hob swivel-setting angle δ is: A: ω B: β C: β-ω D: β+ω