Developmental effects of over-expression of normal and mutated forms of a Xenopus NF-κB homologue

Richardson, Jill C. and Gatherer, Derek and Woodland, Hugh R. (1995) Developmental effects of over-expression of normal and mutated forms of a Xenopus NF-κB homologue. Mechanisms of Development, 52 (2-3). pp. 165-177. ISSN 0925-4773

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Abstract

High level over-expression of XrelA1, a homologue of the p65 sub-unit of NF-kappa B and of Drosophila dorsal, arrests Xenopus development at the gastrula stage, producing a reduction in the levels of expression of various genes of developmental interest without general reduction in transcription or cessation of cell division. There is little Goosecoid expression, even though a dorsal lip forms. At lower levels XrelA1 mRNA primarily produces disruption of the mid-dorsal axis. A dominant interference gene product, Delta 222, produces mainly posterior, but also anterior abnormalities. On the basis of these results we postulate that the role of XrelA1 in the vertebrate embryo is unlikely to be in dorsoventral development, but more likely in the formation of the termini.

Item Type:
Journal Article
Journal or Publication Title:
Mechanisms of Development
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1300/1309
Subjects:
?? xenopusnf-kappa-bdorsalaxis formationdrosophila embryodorsoventral patternmesoderm inductionneural inductiondorsal proteinorganizercactuslaevisspecificationmorphogendevelopmental biologyembryology ??
ID Code:
66859
Deposited By:
Deposited On:
30 Sep 2013 09:50
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 14:15