essential group造句

• The result indicated 1 . 8 tip residues were modified in the buffer without urea and they were not essential groups to the agglutinate activity of cml . in the buffer with urea , 5 . 0 tip residues were modified and 2 . 8 of them were essential groups to the agglutinate activity of cml
  含脲体系中可修饰5 . 0个色氨酸残基，其中有2 . 8个为cml活性所需；不含脲缓冲体系中可修饰1 . 8个色氨酸残基，都不是cml活性所必需。