By binding to melatonin receptors in the suprachiasmatic nucleus of the hypothalamus, melatonin adjusts the body’s internal clock, influencing sleep-wake cycles and promoting nighttime sleepiness.

A) The structure of TLRs is characteristic of type I membrane proteins: A transmembrane domain spans the membrane (MB) and connects to an extracellular domain, which projects from the outside ...

The discovery of microbial-sensing proteins called Toll-like receptors is transforming our ... innate immune response following LPS The basic structure of TLRs is typical of transmembrane proteins ...