Expression and functional characterization of a gene associated with retinoid-interferon-induced mortality 19 (GRIM-19) from orange-spotted grouper (Epinephelus coioides)
Zhu, XP (reprint author), Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Minist Agr, Key Lab Trop & Subtrop Fishery Resource Applicat, Guangzhou 510380, Guangdong, Peoples R China.
[Shi, Yan
; Zhu, Xinping
; Chen, Kunci] Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Minist Agr, Key Lab Trop & Subtrop Fishery Resource Applicat, Guangzhou 510380, Guangdong, Peoples R China
; [Zhao, Zhe] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China
; [Zhang, Qiya] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
WOS标题词:
Science & Technology
; Life Sciences & Biomedicine
GRIM-19 is a nuclear encoded subunit of complex I that has been implicated in apoptosis. The protein participates in multiple functions including the innate immune response. GRIM-19 has been studied in humans and other mammals; however, fish GRIM-19 has not been well characterized. In this study, a new GRIM-19 gene, EcGRIM-19, was isolated from the orange-spotted grouper (Epinephelus coioides) cDNA library, which was constructed following LPS treatment. EcGRIM-19 is a 582-bp gene that encodes a 144-amino acid protein. The gene is a true ortholog of mammalian GRIM-19. EcGRIM-19 exhibits ubiquitous and constitutive expression in the different tissues of the orange-spotted grouper. The expression levels of EcGRIM-19 are altered in the gill, spleen, kidney and liver after induction with LPS. The subcellular localization analysis demonstrated that the EcGRIM-19 protein is localized predominantly in the mitochondria. In addition, amino acids 30-50 of the protein are responsible for the mitochondrial localization of EcGRIM-19. The caspase assay demonstrated that the overexpression of GRIM-19 enhanced the cellular sensitivity to interferon(IFN)-beta- and retinoic acid (RA)-induced death in HeLa cells. The data presented in this study are important for further understanding the EcGRIM-19 gene function in fish. (c) 2012 Elsevier Ltd. All rights reserved.
英文摘要:
GRIM-19 is a nuclear encoded subunit of complex I that has been implicated in apoptosis. The protein participates in multiple functions including the innate immune response. GRIM-19 has been studied in humans and other mammals; however, fish GRIM-19 has not been well characterized. In this study, a new GRIM-19 gene, EcGRIM-19, was isolated from the orange-spotted grouper (Epinephelus coioides) cDNA library, which was constructed following LPS treatment. EcGRIM-19 is a 582-bp gene that encodes a 144-amino acid protein. The gene is a true ortholog of mammalian GRIM-19. EcGRIM-19 exhibits ubiquitous and constitutive expression in the different tissues of the orange-spotted grouper. The expression levels of EcGRIM-19 are altered in the gill, spleen, kidney and liver after induction with LPS. The subcellular localization analysis demonstrated that the EcGRIM-19 protein is localized predominantly in the mitochondria. In addition, amino acids 30-50 of the protein are responsible for the mitochondrial localization of EcGRIM-19. The caspase assay demonstrated that the overexpression of GRIM-19 enhanced the cellular sensitivity to interferon(IFN)-beta- and retinoic acid (RA)-induced death in HeLa cells. The data presented in this study are important for further understanding the EcGRIM-19 gene function in fish. (c) 2012 Elsevier Ltd. All rights reserved.
关键词[WOS]:
INDUCED CELL-DEATH
; COMPLEX-I
; ACID
; IDENTIFICATION
; REGULATOR
; APOPTOSIS
; INTERACTS
; PROTEIN
; GROWTH
; FISH
Expression and functional characterization of a gene associated with retinoid-interferon-induced mortality 19 (GRIM-19) from orange-spotted grouper (Epinephelus coioides).pdf（724KB）
Expression and functional characterization of a gene associated with retinoid-interferon-induced mortality 19 (GRIM-19) from orange-spotted grouper (Epinephelus coioides).pdf
