PUBLICATION
Cloning, characterization, and heat stress-induced redistribution of a protein homologous to human hsp27 in the zebrafish Danio rerio
- Authors
- Mao, L., Bryantsev, A.L., Chechenova, M.B., and Shelden, E.A.
- ID
- ZDB-PUB-050510-11
- Date
- 2005
- Source
- Experimental cell research 306(1): 230-241 (Journal)
- Registered Authors
- Shelden, Eric
- Keywords
- Hsp27; Muscle; Actin; Zebrafish; Stress; Injury; Heart; Hyperthermia; Cytoskeleton; Epithelial
- MeSH Terms
-
- Protein Transport
- Embryo, Nonmammalian/metabolism
- Animals
- Myofibrils/metabolism
- Gene Expression Regulation, Developmental
- Heat-Shock Proteins/genetics*
- Heat-Shock Proteins/immunology
- Heat-Shock Proteins/metabolism
- Gene Expression Profiling
- Muscle Cells/metabolism
- HSP27 Heat-Shock Proteins
- Amino Acid Sequence
- Sequence Homology, Amino Acid
- Heat-Shock Response/physiology
- Reverse Transcriptase Polymerase Chain Reaction
- Zebrafish Proteins/genetics*
- Zebrafish Proteins/immunology
- Zebrafish Proteins/metabolism
- Cell Nucleus/metabolism
- Neoplasm Proteins/genetics
- Transfection
- Cloning, Molecular
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- NIH 3T3 Cells
- Mice
- Phosphorylation
- Cytoplasm/metabolism
- Hot Temperature
- Humans
- Base Sequence
- Molecular Sequence Data
- Zebrafish/embryology
- Zebrafish/genetics
- Zebrafish/metabolism*
- Epithelial Cells/metabolism
- PubMed
- 15878347 Full text @ Exp. Cell Res.
Citation
Mao, L., Bryantsev, A.L., Chechenova, M.B., and Shelden, E.A. (2005) Cloning, characterization, and heat stress-induced redistribution of a protein homologous to human hsp27 in the zebrafish Danio rerio. Experimental cell research. 306(1):230-241.
Abstract
Hsp27 is a small heat shock protein (shsp) regulating stress tolerance and increasingly thought to play roles in tissue homeostasis and differentiation. The zebrafish Danio rerio is an important model for the study of developmental processes, but little is known regarding shsps in this animal. Here, we report the sequence, expression, regulation, and function of a zebrafish protein (zfHsp27) homologous to human Hsp27. zfHsp27 contains three conserved phosphorylatable serines and a cysteine important for regulation of apoptosis, but it lacks much of a C-terminal tail domain and shows low homology in two putative actin interacting domains that are features of mammalian Hsp27. zfHsp27 mRNA is most abundant in adult skeletal muscle and heart and is upregulated during early embryogenesis. zfHsp27 expressed in mammalian fibroblasts was phosphorylated in response to heat stress and anisomycin, and this phosphorylation was prevented by treatment with SB202190, an inhibitor of p38 MAPK. Expression of zfHsp27 and human Hsp27 in mammalian fibroblasts promoted a similar degree of tolerance to heat stress. zfHsp27 fusion proteins entered the nucleus and associated with the cytoskeleton of heat stressed cells in vitro and in zebrafish embryos. These results reveal conservation in regulation and function of mammalian and teleost Hsp27 proteins and define zebrafish as a new model for the study of Hsp27 function.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping