The BELL1 gene encodes a homeodomain protein involved in pattern formation in the Arabidopsis ovule primordium
Article Abstract:
The BELL1 (BEL1) gene encodes the protein which controls the formation of integuments and the proximal-distal pattern during ovule development in Arabidopsis. The BEL1 protein contains a homeodomain DNA-binding site. BEL1 RNA localizes to the chalazal domain, between the nucellus and the funiculus, where it regulates the downstream genes. The inner and outer integument formation requires BEL1. BEL1 does not suppress the transcription of the AGAMOUS (AG) gene as the expression of the genes overlap during ovule development.
Publication Name: Cell
Subject: Biological sciences
ISSN: 0092-8674
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Epigenetic control of an endogenous gene family is revealed by a novel blue fluorescent mutant of Arabidopsis
Article Abstract:
Arabidopsis revertant lines formed from mutant plants show epigenetic gene silencing by hypomethylation of the phosphoribosylanthranilate isomerase (PAI) genes. The mutants contain a deletion mutation so that the copy number of the PAI genes is reduced to two, giving rise to a fluorescent phenotype. The mutation is meiotically heritable but is unstable and wild-type revertant lines are formed. The hypomethylation is active over the entire genome and is not restricted to specific chromosomal regions.
Publication Name: Cell
Subject: Biological sciences
ISSN: 0092-8674
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
MAP kinases with distinct inhibitory functions impart signaling specificity during yeast differentiation
Article Abstract:
Filamentous invasive growth of Saccharomyces cerevisiae needs several factors of the mitogen-activated protein kinase (MAPK) signaling cascade, that are also parts of the mating pheromone response pathway. It is shown that the two pathways use different MAP kinases, with the Fus3 MAPK regulating mating, and Kss1 MAPK regulating filamentation and invasion.
Publication Name: Cell
Subject: Biological sciences
ISSN: 0092-8674
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The XRCC4 gene encodes a novel protein involved in DNA double-strand break repair and V(D)J recombination. Unraveling V(D)J recombination: insights into gene regulation
- Abstracts: JUN cooperates with the ETS domain protein pointed to induce photoreceptor R7 fate in the Drosophila eye. A conserved MST-FOXO signaling pathway mediates oxidative-stress responses and extends life span
- Abstracts: Molecular cloning of a gene (cfp) encoding the cytoplasmic filament protein P59Nc and its genetic relationship to the snowflake locus of Neurospora crassa
- Abstracts: The NADH-dependent glutamate dehydrogenase enzyme of Bacteroides fragilis Bf1 is induced by peptides in the growth medium
- Abstracts: Cytoplasmic coat proteins involved in endosome function. Visualization of ER-to-Golgi transport in living cells reveals a sequential model of action for COPII and COPI