This is not entirely surprising as many bioactive peptides in nature do not need a receptor to enter the cells, as they can interact with the membranes directly [9].
To perform molecular docking simulations we need a receptor model, a ligand, and docking software.
In order to carry out docking simulations, we need a receptor model, and at least one ligand, as well as docking software.
EPO needs a receptor (EPO-R) to perform its function, and this EPO-R is expressed on erythroid cell progenitors and in a variety of tissues and cell types - for example, the brain, retina, heart, kidney, vascular smooth muscle cells, myoblasts and vascular endothelium.
Our data suggest that, in the specialized environments that these worms inhabit inside their hosts, they do not need a large repertoire of receptors, whereas the free-living nematodes, and nematodes that spend more foraging time in complex soil environments (e.g., P. pacificus and B. xylophilus), require a larger set so that they can better navigate and interpret their environment (Table 7).
To receive what Duke can give you, you need to be a receptor, actively opening yourself to the opportunities around you.
Since, both designer cytokines, H11 and Hyper-IL-6 compromise of cytokine and its cognate α receptor, they need the same receptor subunits for signal transduction.
Similarly, only one receptor in the dimer needs a juxtamembrane hydrophobic L253 or W258 residue, essential for JAK2 activation.
In addition, because light intensities are highly variable, eyes may need different receptor cell types to handle both dim and bright light.
That's why they'd mostly ignored the insulin-like growth factor receptor (IGF-1R), even though they knew that tumors need the receptor to grow and spread.
One might imagine that the nose would need numerous different receptor types each type sensitive to just a single compound to detect and discriminate all the relevant odorants.
