是一种非极性氨基酸，由苏氨酸合成。
Isoleucine a nonpolar AMINO ACID, synthesized from threonine.
异亮氨酸：是一种非极性氨基酸，由苏氨酸合成。
The essential amino acids are leucine, isoleucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
异亮氨酸：是一种非极性氨基酸，由苏氨酸合成。
Isoleucine a nonpolar AMINO ACID, synthesized from threonine.
异亮氨酸：是一种非极性氨基酸，由苏氨酸合成。
It is used in aminophenol teansfusion ans synthesize aminophenol.
量化蛋白质结构的参比疏水性：一般认为，疏水性氨基酸在蛋白质的核中，而极性氨基酸在表面。
Quantify the Relevance Hydrophobicity in protein Structure: the general expectation is that hydrophobic aminoacids are in the core of proteins, while polar aminoacids are on the surface.
山羊fgf 5基因所编码的蛋白质中，20种氨基酸的含量差异很大，极性氨基酸含量高于非极性氨基酸含量。
The composition analysis of amino acid showed that the contents of 20 kinds of amino acid were unbalanced, the contents of polar amino acid were higher than that of nonpolar amino acid in FGF5 gene.
该酶的氨基酸组成为：中极性酸性氨基酸占17.29%，极性碱性氨基酸占4.50%，极性中性氨基酸占38.50%，其它为非极性氨基酸；
The acidic amino acid content of the enzyme was 17.29%, alkaline amino acid 4.50% and neutral amino acid 38.50%, and others were nonpolar amino acids.
R基团赋予氨基酸物理化学特性，例如极性（亲水性和疏水性）以及电荷（酸性或正电荷，碱性或负电荷）。
The R-groups give the amino acids their physical-chemical characteristics such as polarity (hydrophobic or hydrophilic) and charge (acidic or positive versus basic or negative).
请依据氨基酸支链的性质来分类：疏水性、亲水性、极性与非极性。
Please group amino acids according to the nature of their side chains: hydrophobic, hydrophilic, polar and nonpolar.
酸性、碱性、极性与非极性残基，以及特定氨基酸的特殊性质。
Acidic, basic, polar, and nonpolar residues, and special properties of specific amino acids.
酸性、碱性、极性与非极性残基，以及特定氨基酸的特殊性质。
Acidic, basic, polar, and nonpolar residues, and special properties of specific amino acids.
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