PUBLICATION
Hop is an unusual homeobox gene that modulates cardiac development
- Authors
- Chen, F., Kook, H., Milewski, R., Gitler, A., Lu, M., Li, J., Nazarian, R., Schnepp, R., Jen, K., Biben, C., Runke, G., Mackay, J., Novotny, J., Schwartz, R., Harvey, R., Mullins, M., and Epstein, J.
- ID
- ZDB-PUB-021015-3
- Date
- 2002
- Source
- Cell 110(6): 713-723 (Journal)
- Registered Authors
- Mullins, Mary C., Runke, Greg
- Keywords
- none
- MeSH Terms
-
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Sequence Alignment
- Zebrafish Proteins/chemistry
- Zebrafish Proteins/genetics
- Zebrafish Proteins/physiology*
- Animals
- DNA-Binding Proteins/metabolism
- Promoter Regions, Genetic
- Myocardium/metabolism
- Genes, Homeobox*
- Molecular Sequence Data
- Zebrafish/embryology
- Zebrafish/genetics
- Gene Expression Regulation, Developmental
- Serum Response Factor/metabolism
- Mice
- Homeodomain Proteins/chemistry
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Homeodomain Proteins/physiology*
- Transcription Factors*
- Xenopus Proteins*
- COS Cells
- Trans-Activators/genetics
- 3T3 Cells
- Mice, Transgenic
- Conserved Sequence
- Heart/anatomy & histology
- Heart/embryology*
- Heart/growth & development*
- Heart/physiology
- Amino Acid Sequence
- Amino Acid Motifs
- PubMed
- 12297045 Full text @ Cell
Citation
Chen, F., Kook, H., Milewski, R., Gitler, A., Lu, M., Li, J., Nazarian, R., Schnepp, R., Jen, K., Biben, C., Runke, G., Mackay, J., Novotny, J., Schwartz, R., Harvey, R., Mullins, M., and Epstein, J. (2002) Hop is an unusual homeobox gene that modulates cardiac development. Cell. 110(6):713-723.
Abstract
Hop is a small, divergent homeodomain protein that lacks certain conserved residues required for DNA binding. Hop gene expression initiates early in cardiogenesis and continues in cardiomyocytes throughout embryonic and postnatal development. Genetic and biochemical data indicate that Hop functions directly downstream of Nkx2-5. Inactivation of Hop in mice by homologous recombination results in a partially penetrant embryonic lethal phenotype with severe developmental cardiac defects involving the myocardium. Inhibition of Hop activity in zebrafish embryos likewise disrupts cardiac development and results in severely impaired cardiac function. Hop physically interacts with serum response factor (SRF) and inhibits activation of SRF-dependent transcription by inhibiting SRF binding to DNA. Hop encodes an unusual homeodomain protein that modulates SRF-dependent cardiac-specific gene expression and cardiac development.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping