PUBLICATION
The tissue-specificity associated region and motif of an emx2 downstream enhancer CNE2.04 in zebrafish
- Authors
- Chen, X., Zhang, Q., Lin, J., Zhang, Y., Zhang, Y., Gui, Y., Zhang, R., Liu, T., Li, Q.
- ID
- ZDB-PUB-220816-10
- Date
- 2022
- Source
- Gene expression patterns : GEP 45: 119269 (Journal)
- Registered Authors
- Li, Qiang
- Keywords
- CNE2.04, Enhancer, Motif, Zebrafish, emx2
- MeSH Terms
-
- Animals
- Animals, Genetically Modified
- Enhancer Elements, Genetic*
- Gene Expression Regulation, Developmental
- Green Fluorescent Proteins/genetics
- Organ Specificity
- Zebrafish*/metabolism
- PubMed
- 35970322 Full text @ Gene Expr. Patterns
Citation
Chen, X., Zhang, Q., Lin, J., Zhang, Y., Zhang, Y., Gui, Y., Zhang, R., Liu, T., Li, Q. (2022) The tissue-specificity associated region and motif of an emx2 downstream enhancer CNE2.04 in zebrafish. Gene expression patterns : GEP. 45:119269.
Abstract
Background Expression level of EMX2 plays an important role in the development of nervous system and cancers. CNE2.04, a conserved enhancer downstream of emx2, drives fluorescent protein expression in the similar pattern of emx2.
Methods CNE2.04 truncated or motif-mutated transgenic reporter plasmids were constructed and injected into the zebrafish fertilized egg with Tol2 mRNA at the unicellular stage of zebrafish eggs. The green fluorescence expression patterns were observed at 24, 48, and 72 hpf, and the fluorescence rates of different tissues were counted at 48 hpf.
Results Compared to CNE2.04, CNE2.04-R400 had comparable enhancer activity, while the tissue specificity of CNE2.04-L400 was obviously changed. Motif CCCCTC mutation obviously changed the enhancer activity, while motif CCGCTC mutations also changed it.
Conclusion Due to their correlation with tissue specificity, CNE2.04-R400 is associated with the tissue-specificity of CNE2.04, and motif CCCCTC plays an important role in the enhancer activity of CNE2.04.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping