DB identifier | AT2G33860 | Secondary Identifier | locus:2057609 |
Name | ETTIN | Brief Description | Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein |
TAIR Computational Description | Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-like protein;(source:Araport11) |
TAIR Curator Summary | ettin (ett) mutations have pleiotropic effects on Arabidopsis flower development, causing increases in perianth organ number, decreases in stamen number and anther formation, and apical-basal patterning defects in the gynoecium. The ETTIN gene encodes a protein with homology to DNA binding proteins which bind to auxin response elements. ETT transcript is expressed throughout stage 1 floral meristems and subsequently resolves to a complex pattern within petal, stamen and carpel primordia. ETT probably functions to impart regional identity in floral meristems that affects perianth organ number spacing, stamen formation, and regional differentiation in stamens and the gynoecium. During stage 5, ETT expression appears in a ring at the top of the floral meristem before morphological appearance of the gynoecium, consistent with the proposal that ETT is involved in prepatterning apical and basal boundaries in the gynoecium primordium. It is a target of the ta-siRNA tasiR-ARF. ETT is also a target of AP2; integrateing the functions of AGAMOUS and APETALA2 in floral meristem determinacy. Positive regulation of drought stress response genes. |
TAIR Short Description | Transcriptional factor B3 family protein / auxin-responsive factor AUX/IAA-related |
TAIR Aliases | ARF3, ETT |