pyrabactin noun1 •A synthetic sulfonamide, 4-bromo-N-(2-pyridinylmethyl)-1-naphthalenesulfonamide, that mimics the plant stress hormone abscisic acid.The abscisic acid ligand structure ((+)-ABA; PDB ID: A8S)) was obtained from the ABA-bound pyrabactin resistance domain of the ABA intracellular receptor (PDB ID: 3ZVU). — 2015
