Table 2 Conserved Arabidopsis WD repeat proteins of known function. Indicated are the plant-specific process(es) in which these proteins participate, and linkage to basic cellular mechanisms through homologous proteins from other eukaryotes (references within text).
Arabidopsis protein | Plant process | Representative homologous protein(s) | Basic cellular mechanism |
|---|---|---|---|
AGB1 | auxin response | Gβ (human) | signal transduction |
COP1, SPA1 | light signaling/ photomorphogenesis | Cop1 (human) | repression of bZIP transcriptional regulators |
FAS2 | meristem maintenance | Cac2 (yeast) | chromatin assembly |
FVE, AtMSI1 | flowering timing, meristem maintenance | Msi1, Hat2 (yeast) | chromatin assembly, histone acetylation |
FIE | seed development, flowering | Esc (fly) | polycomb-mediated transcriptional repression |
PRL1 | various | Prp46 (yeast) | RNA processing |
FY | flowering timing | Pfs2 (yeast) | RNA processing |