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15 天
“在脆弱的稳定中,中美关系正透露出趋于恶化的迹象”
然而,挑战往往伴随着机遇。中美关系的进一步恶化不仅对两国构成严峻挑战,也将给世界带来重大风险。如果特朗普实施对华商品征收60%关税的承诺,后果将是灾难性的。美国将面临更高的通胀,两个国家都会遭遇大规模的失业,全球贸易将受到严重冲击,而中国也可能采取反 ...
生物通
17 天
武汉大学郑忠亮课题组通过理性设计显著提升3-甾醇-Δ1-脱氢酶热稳定 ...
论文题为“Increased thermal stability and catalytic efficiency of 3-ketosteroid Δ 1-dehydrogenase5 from ... 和实验验证的组合策略,鉴定出9个热稳定性和活性高于KsdD 5 的潜在突变体,形成了一个小文库,其中T311A、E225N在热稳定性有显著提升,T324A则是极大提高了底物催化效率。
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