PUBLICATION
First profiling of lysine crotonylation of myofilament proteins and ribosomal proteins in zebrafish embryos
- Authors
- Kwon, O.K., Kim, S.J., Lee, S.
- ID
- ZDB-PUB-180228-5
- Date
- 2018
- Source
- Scientific Reports 8: 3652 (Journal)
- Registered Authors
- Keywords
- none
- MeSH Terms
-
- Animals
- Embryo, Nonmammalian/metabolism*
- Lysine/metabolism*
- Microfilament Proteins/metabolism*
- Protein Processing, Post-Translational
- Ribosomal Proteins/metabolism*
- Zebrafish
- Zebrafish Proteins
- PubMed
- 29483630 Full text @ Sci. Rep.
Citation
Kwon, O.K., Kim, S.J., Lee, S. (2018) First profiling of lysine crotonylation of myofilament proteins and ribosomal proteins in zebrafish embryos. Scientific Reports. 8:3652.
Abstract
Zebrafish embryos are translucent and develop rapidly in individual eggs ex utero; they are widely used as models for embryogenesis and organ development for human diseases and drug discovery. Lysine crotonylation (Kcr) is a type of histone post-translational modifications discovered in 2011. Kcr dynamics are involved in gene expression regulation and acute kidney injury; however, little is known about the effects of Kcr on non-histone proteins. In the present study, we conducted the first proteome-wide profiling of Kcr in zebrafish larvae and identified 557 Kcr sites on 218 proteins, representing the Kcr event in zebrafish. We identified two types of Kcr motifs containing hydrophobic (Leu, Ile, Val) and acidic (Asp and Glu) amino acids near the modified lysine residues. Our results show that both crotonylated proteins and sites of crotonylation were evolutionarily conserved between zebrafish embryos and humans. Specifically, Kcr on ribosomal proteins and myofilament proteins, including myosin, tropomyosin and troponin, were widely enriched. Interestingly, 55 lysine crotonylation sites on myosin were distributed throughout coiled coil regions. Therefore, Kcr may regulate muscle contraction and protein synthesis. Our results provide a foundation for future studies on the effects of lysine crotonylation on aging and heart failure.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping