1995 | Richard Wooster, Graham Bignell, Jonathan Lancaster, Sally Swift, Sheila Seal, Jonathan Mangion, Nadine Collins, Simon Gregory, Curtis Gumbs, Gos Michlem, Rita Barfoot, Rifat Hamoudi, Sandeep Patel, Catherine Rice, Patrick Biggs, Yasmin Hashim, Amanda Smith, Frances Connor, Adelgeir Arason, Julius Gudmundsson, David Flicene, David Kelsell, Deborah Ford, Patricia Tonin, D. Timothy Bishop, Nigel K. Spurr, Bruce A. J. Ponder, Rosalind Eeles, Julian Peto, Peter Devilee, Cees Cornélisse, Henry Lynch, Steven Narod, Gilbert Lenoir, Valdgardur Egilsson, Rosa Bjork Barkadottir, Douglas F. Easton, David R. Bentley, P. Andrew Futreal, Alan Ashworth & Michael R. Stratton
The study investigates the interaction between the bed homeodomain protein and cad mRNA, finding that the bed homeodomain is essential for binding to cad mRNA and forming the cad gradient. Co-transfection experiments with Drosophila Schneider cells show that bed reduces the translation efficiency of BBR-containing mRNAs, suggesting that bed functions not only as a transcriptional activator but also as a translational repressor. This dual function of bed is analogous to the posterior maternal pattern-organizer system, where nanos and pumilio proteins mediate translational repression. The findings imply that the anterior and posterior maternal pattern-forming systems are interconnected through bed's dual regulatory roles.The study investigates the interaction between the bed homeodomain protein and cad mRNA, finding that the bed homeodomain is essential for binding to cad mRNA and forming the cad gradient. Co-transfection experiments with Drosophila Schneider cells show that bed reduces the translation efficiency of BBR-containing mRNAs, suggesting that bed functions not only as a transcriptional activator but also as a translational repressor. This dual function of bed is analogous to the posterior maternal pattern-organizer system, where nanos and pumilio proteins mediate translational repression. The findings imply that the anterior and posterior maternal pattern-forming systems are interconnected through bed's dual regulatory roles.