A novel super‐secondary structure of β‐proteins A triple‐strand corner

FEBS Letters

Efimov, A.V.¹ 

[1] Institute of Protein Research, Academy of Sciences of Russia, 142292 Pushchino, Moscow Region, USSR

关键词: β-Hairpin;    β-Sheet;    Folding;    Packing;    Right-handed structure;   

DOI  :  10.1016/0014-5793(92)80072-O

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

A novel super-secondary structure of β-proteins, denoted here as a triple-strand corner, is considered in this paper. This structure can be represented as an antiparallel triple-strand β-sheet folded on itself so that the two β-β-hairpins are packed approximately orthogonally in different layers and the central strand bends by 90° in the right-handed direction when passing from one layer to the other. In all the triple-strand corners observed in proteins, the first β-β-hairpins are right-handed and the second ones are left-handed when viewed from the concave sides of the corners. Arrangement of other β-strands in the proteins involving the triple-strand corners is also examined.

【 授权许可】

Unknown