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Ⅲ型分泌系统（type III secretion system，T3SS）是一种跨越细胞包膜的注射体（injectisome），存在于许多革兰阴性致病菌中。T3SS的表达受细胞外信号控制，例如细胞包膜应激。CpxAR双组分系统（two ...

A microbial evolution hanging-droplet system reveals how bacterial communities rapidly adapt to antibiotics pressure.

The Nature Index 2026 Research Leaders reveal the leading institutions and countries/territories in the natural sciences, health sciences, applied sciences and social sciences, according to their ...

Welcome to the SDWIS Fed Reporting Services system. This system offers the capability to query the Safe Drinking Water Information System (SDWIS) Fed Data Warehouse via report filters and various ...

When you turn on your faucet, water seems to magically appear. EPA, states, and water utilities work together to bring clean, safe water into homes and businesses every day. In the US, approximately ...

The team then focused on YoaI, which increased under low magnesium but wasn't linked to PhoQ-PhoP signaling. Instead, this protein activated another two-component system, EnvZ-OmpR, that controls how ...

来自Vellappan团队的研究人员通过核糖体图谱和RNA测序技术，鉴定出17个镁离子(Mg2+)饥饿诱导的大肠杆菌小蛋白(≤50aa)，发现YoaI蛋白能介导磷酸盐应激(PhoR-PhoB)与渗透压应激(EnvZ-OmpR)双组分系统的 ...

华东理工大学教授王启要、南方科技大学教授周晓辉和河南科技大学讲师郭荣显合作，首次报道了副溶血弧菌渗透压传感器组氨酸激酶EnvZ从渗透压传感器“进化”为铁离子探测器的分子机制 ...

What Is the Limbic System? The limbic system is a part of the brain consisting of several components such as the hippocampus and amygdala and serving many functions within the body. While we have a ...

The United States is one of just three countries that "prefers" imperial measurements over the international metric standard. The motivation why has less to do with official policy than you might ...