Internal dynamics play a crucial functional role in MarR (multiple antibiotic resistance repressor) proteins and their role reconciles the distinct allosteric mechanisms proposed previously.
The signaling ligand (p)ppGpp regulates the enzyme HPRT across species by binding to a novel class of conserved motif, yet its specificity is allosterically altered through evolution of enzyme oligomerization.
Structural and functional characterization of an unanticipated mode of allosteric activity regulation in ribonucleotide reductases controlled by an ATP-cone in the radical-generating subunit.
Understanding the complex auto-regulatory mechanisms for guanine nucleotide exchange factors is critically important for fully appreciating the layers of control for small GTPases.
Assembly of the human enzyme inosine monophosphate dehydrogenase 2 into filaments promotes substrate-dependent resistance to feedback inhibition by downstream products, promoting increased flux during proliferative states.
The molecular chaperone BIP from the endoplasmic reticulum is fine-tuned postranslationally through the thermodynamic and kinetic alterations in its conformational ensemble of functionally and structurally distinct physiological forms.
The SHIP2 inositol phosphatase is an important upstream regulator of the Akt signaling pathway, which requires a catalytic core formed by the phosphatase domain tightly packed to a C2 domain for its function.
