Professor Shi Yigong of the School of Life Sciences of Tsinghua University published the major research results on the assembly mechanism and structure of the splice body in the “Science” magazine. The paper entitled “Structures of the Fully Assembled Saccharomyces cerevisiae Spliceosome Before Activation” reports two completely assembled key conformations of the Saccharomyces cerevisiae spliceosome in the preactivated phase – Precursor pre-catalytic spliceosome (defined as “pre-B complex”) and pre-catalytic spliceosome…