Of three forms of S recombinant proteins, only S or S1protein induced neutralizing antibody responses, antibody titer was increased by S protein immunization.
其中，仅S和S1蛋白重组质粒能够诱导中和抗体的产生，以S蛋白的效价为高。
2
Results:Sequencing analysis confirmed that the recombinant protein has the same sequence of natural SARS virus S1 subunit.