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【单选题】
下列有关β折叠的叙述哪个是错误的?
A.
球状蛋白质中无β折叠的结构
B.
β折叠靠链间氢键而稳定
C.
它的氢键是肽链的C=O与N-H间形成的
D.
α-角蛋白可以通过加热处理而转变成β折叠的结构
E.
β折叠有平行的β折叠和反平行的β折叠
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