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Characterization of two genes encoding leucine-rich repeat-containing proteins in grass carp Ctenopharyngodon idellus
Chang, MX; Nie, P; Xie, HX; Sun, BJ; Gao, Q; Nie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China
2005
Source PublicationIMMUNOGENETICS
ISSN0093-7711
Volume56Issue:10Pages:710-721
AbstractThe cDNAs and genes of two different types of leucine- rich repeat-containing proteins from grass carp ( Ctenopharyngodon idellus) were cloned. Homology search revealed that the two genes, designated as GC-GARP and GC-LRG, have 37% and 32% deduced aminoacid sequence similarities with human glycoprotein A repetitions predominant precursor ( GARP) and leucine-rich alpha2-glycoprotein (LRG), respectively. The cDNAs of GC-GARP and GC-LRG encoded 664 and 339 amino acid residues, respectively. GC-GARP and GC-LRG contain many distinct structural and/or functional motifs of the leucine- rich repeat (LRR) subfamily, such as multiple conserved 11-residue segments with the consensus sequence LxxLxLxxN/CxL ( x can be any amino acid). The genes GC-GARP and GC-LRG consist of two exons, with 4,782 bp and 2,119 bp in total length, respectively. The first exon of each gene contains a small 5'-untranslated region and partial open reading frame. The putative promoter region of GC-GARP was found to contain transcription factor binding sites for GATA-1, IRF4, Oct-1, IRF-7, IRF-1, AP1, GATA-box and NFAT, and the promoter region of GC-LRG for MYC-MAX, MEIS1, ISRE, IK3, HOXA9 and C/EBP alpha. Phylogenetic analysis showed that GC-GARP and mammalian GARPs were clustered into one branch, while GC-LRG and mammalian LRGs were in another branch. The GC-GARP gene was only detected in head kidney, and GC-LRG in the liver, spleen and heart in the copepod ( Sinergasilus major)- infected grass carp, indicating the induction of gene expression by the parasite infection. The results obtained in the present study provide insight into the structure of fish LRR genes, and further study should be carried out to understand the importance of LRR proteins in host - pathogen interactions.; The cDNAs and genes of two different types of leucine- rich repeat-containing proteins from grass carp ( Ctenopharyngodon idellus) were cloned. Homology search revealed that the two genes, designated as GC-GARP and GC-LRG, have 37% and 32% deduced aminoacid sequence similarities with human glycoprotein A repetitions predominant precursor ( GARP) and leucine-rich alpha2-glycoprotein (LRG), respectively. The cDNAs of GC-GARP and GC-LRG encoded 664 and 339 amino acid residues, respectively. GC-GARP and GC-LRG contain many distinct structural and/or functional motifs of the leucine- rich repeat (LRR) subfamily, such as multiple conserved 11-residue segments with the consensus sequence LxxLxLxxN/CxL ( x can be any amino acid). The genes GC-GARP and GC-LRG consist of two exons, with 4,782 bp and 2,119 bp in total length, respectively. The first exon of each gene contains a small 5'-untranslated region and partial open reading frame. The putative promoter region of GC-GARP was found to contain transcription factor binding sites for GATA-1, IRF4, Oct-1, IRF-7, IRF-1, AP1, GATA-box and NFAT, and the promoter region of GC-LRG for MYC-MAX, MEIS1, ISRE, IK3, HOXA9 and C/EBP alpha. Phylogenetic analysis showed that GC-GARP and mammalian GARPs were clustered into one branch, while GC-LRG and mammalian LRGs were in another branch. The GC-GARP gene was only detected in head kidney, and GC-LRG in the liver, spleen and heart in the copepod ( Sinergasilus major)- infected grass carp, indicating the induction of gene expression by the parasite infection. The results obtained in the present study provide insight into the structure of fish LRR genes, and further study should be carried out to understand the importance of LRR proteins in host - pathogen interactions.
SubtypeArticle
KeywordGarp Lrg Lrr Genome Promoter Grass Carp
DepartmentChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Lab Fish Dis, Wuhan 430072, Hubei Province, Peoples R China
Subject AreaGenetics & Heredity ; Immunology
DOI10.1007/s00251-004-0737-3
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaGenetics & Heredity ; Immunology
WOS SubjectGenetics & Heredity ; Immunology
WOS IDWOS:000226465800004
WOS KeywordDIFFERENTIATION ; ALPHA-2-GLYCOPROTEIN ; DROSOPHILA ; EXPRESSION ; RECEPTORS ; FAMILY ; TOLL
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9332
Collection期刊论文
Corresponding AuthorNie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Dis, Wuhan 430072, Hubei Province, Peoples R China
Recommended Citation
GB/T 7714
Chang, MX,Nie, P,Xie, HX,et al. Characterization of two genes encoding leucine-rich repeat-containing proteins in grass carp Ctenopharyngodon idellus[J]. IMMUNOGENETICS,2005,56(10):710-721.
APA Chang, MX,Nie, P,Xie, HX,Sun, BJ,Gao, Q,&Nie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China.(2005).Characterization of two genes encoding leucine-rich repeat-containing proteins in grass carp Ctenopharyngodon idellus.IMMUNOGENETICS,56(10),710-721.
MLA Chang, MX,et al."Characterization of two genes encoding leucine-rich repeat-containing proteins in grass carp Ctenopharyngodon idellus".IMMUNOGENETICS 56.10(2005):710-721.
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