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Identification of a novel C1q family member in color crucian carp (Carassius auratus) ovary
Chen, B; Gui, JF; Gui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2004-07-01
Source PublicationCOMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
ISSN1096-4959
Volume138Issue:3Pages:285-293
AbstractPotential roles of Clq/tumor necrosis factor (TNF) superfamily proteins have been observed in vertebrate oogenesis and oocyte maturation, but no ovary-specific member has been identified so far. In this study, we have cloned and identified a novel member of Clq family with a Clq domain in the C-terminal from fully grown oocyte cDNA library of color crucian carp and demonstrated that the gene might be specifically expressed in ovary and therefore designated as Carassius auratus ovary-specific Clq-like factor, CaOClq-like factor. It encodes a 213 amino acid protein with a 17 amino acid signal peptide. There is only one protein band of about 24.5 kDa in the extracts from phase I to phase IV oocytes, but two positive protein bands are detected in the extracts of mature eggs and fertilized eggs. Furthermore, the mobility shift of the smaller target protein band cannot be eliminated by phosphatase treatment, but the larger protein band increases its mobility on the gel after phosphatase treatment, suggesting that the larger protein might be a phosphorylated form. Immunofluorescence localization indicates that the CaOClq-like proteins localize in cytoplasm, cytoplasm membrane and egg envelope of the oocytes at cortical granule stage and vitellogenesis stage, whereas they were compressed to cytoplasm margin in ovulated mature eggs and discharged into perivitelline space between cytoplasm membrane and egg envelope after egg fertilization. Further studies on distribution and translocation mechanism of the CaOClq-like factor will be benefit to elucidate the unique function in oogenesis, oocyte maturation and egg fertilization. (C) 2004 Elsevier Inc. All rights reserved.; Potential roles of Clq/tumor necrosis factor (TNF) superfamily proteins have been observed in vertebrate oogenesis and oocyte maturation, but no ovary-specific member has been identified so far. In this study, we have cloned and identified a novel member of Clq family with a Clq domain in the C-terminal from fully grown oocyte cDNA library of color crucian carp and demonstrated that the gene might be specifically expressed in ovary and therefore designated as Carassius auratus ovary-specific Clq-like factor, CaOClq-like factor. It encodes a 213 amino acid protein with a 17 amino acid signal peptide. There is only one protein band of about 24.5 kDa in the extracts from phase I to phase IV oocytes, but two positive protein bands are detected in the extracts of mature eggs and fertilized eggs. Furthermore, the mobility shift of the smaller target protein band cannot be eliminated by phosphatase treatment, but the larger protein band increases its mobility on the gel after phosphatase treatment, suggesting that the larger protein might be a phosphorylated form. Immunofluorescence localization indicates that the CaOClq-like proteins localize in cytoplasm, cytoplasm membrane and egg envelope of the oocytes at cortical granule stage and vitellogenesis stage, whereas they were compressed to cytoplasm margin in ovulated mature eggs and discharged into perivitelline space between cytoplasm membrane and egg envelope after egg fertilization. Further studies on distribution and translocation mechanism of the CaOClq-like factor will be benefit to elucidate the unique function in oogenesis, oocyte maturation and egg fertilization. (C) 2004 Elsevier Inc. All rights reserved.
SubtypeArticle
KeywordClq Family Clq/tnf Superfamily Caoclq-like Factor Oocyte Translocation Phosphorylation
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Subject AreaBiochemistry & Molecular Biology ; Zoology
DOI10.1016/j.cbpc.2004.04.014
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Zoology
WOS SubjectBiochemistry & Molecular Biology ; Zoology
WOS IDWOS:000223784200010
WOS KeywordTUMOR-NECROSIS-FACTOR ; ALPHA MESSENGER-RNA ; TNF-ALPHA ; GIBELIO BLOCH ; RAT OVARY ; EXPRESSION ; FISH ; PROTEINS ; ELEMENT ; CELLS
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9434
Collection期刊论文
Corresponding AuthorGui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Chen, B,Gui, JF,Gui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China. Identification of a novel C1q family member in color crucian carp (Carassius auratus) ovary[J]. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY,2004,138(3):285-293.
APA Chen, B,Gui, JF,&Gui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2004).Identification of a novel C1q family member in color crucian carp (Carassius auratus) ovary.COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY,138(3),285-293.
MLA Chen, B,et al."Identification of a novel C1q family member in color crucian carp (Carassius auratus) ovary".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY 138.3(2004):285-293.
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