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Chemokines and their receptors control cell migration associated with routine immune surveillance, inflammation and development. They are also implicated in a large number of inflammatory diseases, cancer and HIV. Here we describe a rapid and efficient way to express and purify milligram quantities of multiple chemokine ligands (CCL7/MCP-3, CCL14/HCC-1, CCL3/MIP-1α and CXCL8/IL-8) containing C-terminal...
The bacterial histidine autokinase CheA contains a histidine phosphotransfer (Hpt) domain that accepts a phosphate from the catalytic domain and donates the phosphate to either target response regulator protein, CheY or CheB. The Hpt domain forms a helix-bundle structure with a conserved four-helix bundle motif and a variable fifth helix. Observation of two nearly equally populated conformations in...
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