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Single Cell Transfection in Chick Embryos
Published on: September 25, 2010
Cloning and expression of the chick p63 gene
1Department of Biological Science and Technology, Faculty of Engineering, The University of Tokushima, 2-1 Minami-Jyosanjima Cho, Tokushima City 770-8506, Japan.
Insights
Researchers identified a chick cDNA for p63, a p53 family member, crucial for epithelial development. This alpha isoform lacks the transactivation domain and shows specific expression patterns in developing avian tissues.
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- The p53 family of transcription factors plays critical roles in cellular processes.
- Understanding the function and expression of p63 is essential for studying epithelial development.
Purpose of the Study:
- To isolate and characterize a chick cDNA encoding the p63 protein.
- To investigate the expression patterns of p63 during embryonic development in chicks.
Main Methods:
- cDNA isolation and sequencing.
- Whole-mount in situ hybridization or similar techniques to detect gene expression.
Main Results:
- A chick cDNA encoding a p63 alpha isoform (582 amino acids) was isolated.
- This isoform lacks the N-terminal transactivation domain.
- Chick p63 gene expression begins in the prospective cutaneous ectoderm at stage 6.
- Expression is observed in various developing epithelial structures, including the apical ectodermal ridge, branchial arches, feather buds, interdigital epithelium, and epaxial dermamyotome.
Conclusions:
- Chick p63 is expressed in specific epithelial tissues during embryonic development.
- The identified p63 isoform may play a role in the development of specialized epithelial structures in birds.
Abstract:
We have isolated a chick cDNA for p63, a member of the p53 transcription factor family. This cDNA encodes a protein of 582 amino acids for an alpha isoform in the C-terminal region, while lacking the N-terminal transactivation domain. The chick p63 gene is first expressed in the prospective cutaneous ectoderm at stage 6 and later in the developing epithelia. The p63 expression is intense in specialized epithelial structures, such as apical ectodermal ridge of the limb bud, epithelia of branchial arches and feather buds. Furthermore, we have found that the transcripts are detected in the interdigital epithelium, intersomite epithelium, and epaxial dermamyotome.
