侧链基团 meaning in English

side-chain radical

So it has been found that this polymorphism of sod was changed under different experimental conditions , which showed that the polymorphism was not caused by the difference of genes or the difference of length or side groups of the peptide chains which was caused during the processing after transcript or the purification
由此排除了其是由不同基因编码的同工酶或在转录后加工及分离纯化过程中形成肽链长短不一和酶分子侧链基团差异等微不均一性所造成的可能性。