Defining the boundaries: structure and function of LOB domain proteins.
The plant-specific LBD (Lateral Organ Boundaries Domain) gene family is essential in the regulation of plant lateral organ development and is involved in the regulation of anthocyanin and nitrogen metabolism. LBD proteins contain a characteristic LOB domain composed of a C-motif required for DNA-binding, a conserved glycine residue, and a leucine-zipper-like sequence required for protein-protein interactions. Recently, several LBD genes associated with mutant phenotypes related to almost all aspects of plant development, including embryo, root, leaf, and inflorescence development have been functionally characterized. These novel insights contribute to a better understanding of the molecular definition of boundaries between organs or boundaries between organs and meristems and the regulation of these processes by environmental cues and phytohormones.
University of Tuebingen, Center for Plant Molecular Biology, Department of General Genetics, Auf der Morgenstelle 28, 72076 Tuebingen, Germany.
Christine
C
Majer
Frank
F
Hochholdinger
D000872:Anthocyanins / Q000378:metabolism*; D018519:Meristem / Q000254:growth & development / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism; D063245:Plant Development; D010937:Plant Growth Regulators / Q000378:metabolism; D010940:Plant Proteins / Q000737:chemistry / Q000378:metabolism*; D010944:Plants / Q000378:metabolism*; D017434:Protein Structure, Tertiary
D000872:Anthocyanins; D010937:Plant Growth Regulators; D010940:Plant Proteins; D009584:Nitrogen