receptor-biology
Receptor biology studies the specialized proteins that detect and relay chemical signals, enabling cells to sense and respond to their environment. In plants, receptor systems govern critical processes such as hormone perception, pathogen recognition, and responses to environmental cues like light and drought. Understanding how plant receptors function and interact with signaling molecules is key to unlocking the molecular mechanisms behind growth, immunity, and stress adaptation.
open_in_new WikipediaPubMed · 2026-05-01
Scientists mapped the 3D structures of animal reproductive hormones and their cellular receptors, tracing their evolution from ancient sea creatures to humans. A key puzzle emerged: lab imaging shows these receptors work as single units, yet cell experiments suggest pairs are needed for full function — and a worm relative may hold the answer.
Glycoprotein hormones and their receptors evolved in the earliest multicellular animals (sponges and comb jellies) and are completely absent from plants and single-celled organisms.
Cryo-EM imaging reveals all known human glycoprotein hormone receptors are monomers (single units), contradicting biochemical and cellular evidence that receptor dimers (pairs) are required for proper signaling.
The C. elegans roundworm receptor forms a stable dimer and, when compared structurally to human receptors, provides a hypothetical atomic model for how human receptor dimers might form and function.