求翻译：连接蛋白质分子中的二级结构（α-螺旋和β-折叠），使肽链走向改变的一种非重复多肽区，一般含有2～16个氨基酸残基。含有5个氨基酸残基以上的转角又常称之环（loops）。常见的转角含有4个氨基酸残基，有两种类型。转角I的特点是：第1个氨基酸残基羰基氧与第4个残基的酰胺氮之间形成氢键；转角II的第3个残基往往是甘氨酸。这两种转角中的第2个残基大都是脯氨酸。是什么意思？

Connecting the secondary structure of protein molecules (α-helix and β-sheet), so changes in the peptide chain to a non-repeat peptide area, usually containing 2 to 16 amino acid residues. Amino acid residues containing five or more corners were often termed loop (loops). Common corner with four ami

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In the connection protein member two levels of structures (alpha - screw and beta - fold), causes the peptide chain to move towards the change one kind must to duplicate the multi-peptide area, includes 2~16 amino acid remnant bases generally.Includes 5 amino acid remnant base above corner often to

Connection of secondary structure in protein molecules (α-helix and β-fold) so that a distinct peptide to peptide chain to change area, generally containing 2~16 amino acid residues. Containing more than 5 amino acid residues of the corner is often called the ring of (loops). Common rotation has 4 a

Connection of secondary structure in protein molecules (α-helix and β-fold) so that a distinct peptide to peptide chain to change area, generally containing 2~16 amino acid residues. Containing more than 5 amino acid residues of the corner is often called the ring of (loops). Common rotation has 4 a