The BTB domain of bric à brac mediates dimerization in vitro
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Bric - a - brac of Creative Computing : Studying Fractal Shapes
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Gene expression evolution through gene regulatory network (GRN) changes has gained appreciation as a driver of morphological evolution. However, understanding how GRNs evolve is hampered by finding relevant cis-regulatory element (CRE) mutations, and interpreting the protein-DNA interactions they alter. We investigated evolutionary changes in the duplicated Bric-à-brac (Bab) transcription facto...
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Pattern formation in the limbs of Drosophila: bric à brac is expressed in both a gradient and a wave-like pattern and is required for specification and proper segmentation of the tarsus.
We have identified the gene bric à brac and show that it is required for pattern formation along the proximal-distal axis of the leg and antenna of Drosophila. In bric à brac mutant legs, the bristle pattern of the three central tarsal segments is transformed towards the pattern of the most proximal tarsal segment. In addition, bric à brac mutant legs and antennae have segmentation defects. bri...
متن کاملLimb type-specific regulation of bric a brac contributes to morphological diversity.
The insect antenna and leg are considered homologous structures, likely to have arisen via duplication and divergence from an ancestral limb. Consistent with this, the antenna and leg are derived from primordia with similar developmental potentials. Nonetheless, the adult structures differ in both form and function. In Drosophila, one conspicuous morphological difference is that the antenna has...
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ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 1995
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.15.6.3424