The cDNA encoding the extracellular domain of human costimulatory molecule B7 1/CD80 was cloned from human peripheral blood monocytes by using RT PCR method and sequenced by Sanger chain termination method.是什么意思_The cDNA encoding the extracellular domain of human costimulatory molecule B7 1/CD80 was cloned from human peripheral blood monocytes by using RT PCR method and sequenced by Sanger chain termination method.在线翻译_英语_读音_用法_例句