This spatial configuration of the polypeptide chain is the secondary structure.

肽链的这个空间构象就是二级结构.

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Are the residues contiguous in the primary sequence of the polypeptide chain?

这些残基在多肽链的一级结构上是连续的 吗 ?

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What drives this polypeptide chain to fold up?

是什么趋势这些多肽链折叠 呢 ?

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