• 제목/요약/키워드: Polyclonal

검색결과 444건 처리시간 0.028초

Use of Serological-Based Assay for the Detection of Pepper yellow leaf curl Indonesia virus

  • Hidayat, Sri Hendrastuti;Haryadi, Dedek;Nurhayati, Endang
    • The Plant Pathology Journal
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    • 제25권4호
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    • pp.328-332
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    • 2009
  • Diseases caused by Pepper yellow leaf curl virus infection is considered to be emerging plant diseases in Indonesia in the last five years. One key factor for disease management is the availability of accurate detection of the virus in plants. Polyclonal antibody for Pepper yellow leaf curl Indonesia virus-Bogor (PYLCIV-Bgr) was produced for detection of the virus using I-ELISA and DIBA methods. The antibody was able to detect PYLCIV-Bgr from infected plants up to dilution 1/16,384 and cross reaction was not observed with Cucumber mosaic virus (CMV), Tobacco mosaic virus (TMV), and Chilli veinal mottle virus (ChiVMV). Positive reaction was readily detected in membrane containing Begomovirus samples from Yogyakarta (Kaliurang and Kulonprogo) and West Java (Bogor and Segunung). Infection of PYLCIV-Bgr in chillipepper, tomato, and Ageratum conyzoides was also confirmed using polyclonal antibody for PYLCIV-Bgr in DIBA. Polyclonal antibody for PYLCIV-Bgr is suggested to be included in disease management approach due to its good detection level.

Bacillus thuringiensis 항원들의 면역학적 분석 (Immunological Characterization of Bacillus thuringiensis Antigens)

  • 정재득;박정선;조영수;홍순복;이형환;조명환
    • 한국미생물·생명공학회지
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    • 제23권1호
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    • pp.110-117
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    • 1995
  • This study was carried out to immunologically characterize Bacillus thuringiensis (B.t) antigens. Protein patterns of ultrasonicated- antigens of B. thuringiensis subspecies using SDS- PAGE revealed marked similarities among all the strains analyzed except for the difference between quantative variations of bands and some protein antigens. The comparison of the protein patterns showed that the protein antigen of 45 kilodalton (kd) was common in 11 strains and that the difference between B. thuringiensis subsp. canadensis and galleriae was noticed in quantative variations of bands despite of ambiguous serogrouping, suggesting a useful method for identification. All strains examined showed similar antigenic patterns in SDS-PAGE, while immunodominant bands differed in antigenic reactivity in western blot using polyclonal antibodies. Polyclonal antibody to B. thuringiensis subsp. thuringiensis and israelensis in indirect immunofluorescence assay reacted with flagella and cell surface antigens. The present study indicates that SDS-PAGE and western blot analysis may be used as tools for differentiation and identification of B. thuringiensis subspecies.

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Production of Egg Yolk Antibody (IgY) Against Human Placental DNA-Dependent RNA Polymerase II

  • Lee, Yoon-Ik;Surzycki, Stefan S.;Lee, Young-Ik
    • BMB Reports
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    • 제28권1호
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    • pp.27-32
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    • 1995
  • Polyclonal antibodies against human DNA-dependent RNA polymerase II (HPP II) were generated from chicken egg yolk after immunization with RNA polymerase II as an antigen. The antibodies from egg yolk (IgY) were purified and characterized. IgY showed a specificity against DNA-dependent RNA polymerase II, and was a polyclonal antibody against 12 subunits of polymerase II. An amount of 0.35 mg of IgY was obtained freman HPP II-Sepharose affinity column using 10 eggs from a chicken immunized against RNA polymerase II as an antigen. These antibodies can be used for isolating the genes for RNA polymerase II components, and for in vitro transcription assays using HP-RNA polymerase II.

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Generation of polyclonal antiserum to olive flounder (Paralichthys olivaceus) immunoglobulin by immunization of rabbit with plasmids containing heavy chain gene of olive flounder immunoglobulin

  • 김기홍;권세련;김천수;이은혜
    • 한국어병학회지
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    • 제19권2호
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    • pp.183-188
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    • 2006
  • In fish vaccinology, the secondary antibodies against fish immunoglobulins (Igs) are necessary to measure specific humoral immune responses in immunized fish. In the present study, polyclonal antiserum against olive flounder (Paralichthys olivaceus) IgM heavy chain was generated by intramuscular immunization of rabbit with Escherichia coli/eukaryotic shuttle vector containing open reading frame (ORF) of olive flounder IgM heavy chain. Western blot analysis demonstrated the specific activity of the rabbit antiserum with reduced olive flounder serum H chain at dilutions up to 1:1000. Titer of immunized rabbit serum against olive flounder serum was significantly higher than that of pre-immunized rabbit serum when determined by ELISA.

Polyclonal Antibody to a 37-kDa Recombinant Protein Derived from Bovine $20{\alpha}$-Hydroxysteroid Dehydrogenase

  • Naidansuren, Purevjargal;Min, Kwan-Sik
    • Reproductive and Developmental Biology
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    • 제36권2호
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    • pp.109-114
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    • 2012
  • We prepared the polyclonal antibody anti-$20{\alpha}$-hydroxysteroid dehydrogenase (anti-$20{\alpha}$-HSD) against the recombinant full-length protein bovine $20{\alpha}$-HSD in Escherichia coli. The specificity of anti-$20{\alpha}$-HSD was demonstrated using Chinese hamster ovary (CHO) cells transfected with recombinant bovine $20{\alpha}$-HSD and bovine placental tissues. According to western blot analysis, anti-$20{\alpha}$-HSD specifically recognizes the 37-kDa protein bovine $20{\alpha}$-HSD. The protein is not present in untransfected CHO cells. Anti-$20{\alpha}$-HSD also recognizes a specific protein in the ovaries and placenta of other animals. Immunostaining was used to detect expression of bovine $20{\alpha}$-HSD protein in the cultured luteal cells during the estrous cycle later.

카드뮴 유도 잉어 혈액으로부터의 Metallothionein 정제 및 이에 대한 다클론 항체 생산 (Purification of Carp Serum Metallothionein Induced in Carp with Cadmium and Production of Polyclonal Antibody)

  • 유형석;강호준;김슬기;김남수;김우연
    • 산업식품공학
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    • 제13권4호
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    • pp.314-319
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    • 2009
  • Metallothioneins (MTs) are low molecular weight, cysteine-rich, and heavy metal binding proteins, which could be induced with heavy metals such as Cd, Hg, Zn and Cu in liver, kidney, and in cultured cells. By using ion exchange chromatography on DE-52, MT was purified from the serum of carp induced with cadmium in order to produce antibody against MT. Polyclonal antibody produced against purified carp MT reacted well with MT in the serum of carp induced with cadmium, whereas control serum did not. This may indicate that the polyclonal antibody against the carp MT could be used for the preparation of biosensors to detect MT in fishes like carp.

Immunochemical Reactivity of Polyclonal Antibody against Ampicillin Acylase of Xanthomonas citri

  • Kim, Mee-Jeong;Kim, Su-Won;Bang, Jeong-Hee;Nam, Doo-Hyun
    • Journal of Microbiology and Biotechnology
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    • 제7권3호
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    • pp.194-196
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    • 1997
  • Using the polyclonal antibody for Xanthomonas citri ampicillin acylase raised in Pseudomonas-free Balb/c mice, the immunochemical similarity of several types of penicillin acylases including Erwinia aroideae penicillin V acylase, Escherichia coli penicillin G acylase, Pseudomonas melanogenum and Acetobacter turbidans ampicillin acylases, and Pseudomonas cephalosporin acylase was examined. Among tested, only P. melanogenum ampicillin acylase showed the cross-reactivity with the antibody.

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Development and Characterization of a Specific Anti-Caveolin-1 Antibody for Caveolin-1 Functional Study in Human, Goat and Mouse

  • Ke, Meng-Wei;Jiang, Yan-Nian;Li, Yi-Hung;Tseng, Ting-Yu;Kung, Ming-Shung;Huang, Chiun-Sheng;Cheng, Winston Teng-Kuei;Hsu, Jih-Tay;Ju, Yu-Ten
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권6호
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    • pp.856-865
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    • 2007
  • Caveolin-1 of the caveolin family of proteins regulates mammary gland development and has been shown to play a contradictory role in breast tumor progression. A specific anti-Caveolin-1 antibody will be useful for functional study of Caveolin-1 in different tissues. In this study, we generated a rabbit polyclonal antibody that specifically recognizes the N-terminal amino acids 50-65 of Caveolin-1. This polyclonal antibody specifically reacted with Caveolin-1 extracted from cells of different species, including human epithelial A431 cells, goat primary mammary epithelial cells and mice fibroblast NIH 3T3 cells, by Western blotting. Endogenous Caveolin-1 protein expressing in cells and normal human tissues was detected by this polyclonal antibody using immunocytofluorescent and immunohistochemical staining, respectively. Furthermore, an apparent decrease in Caveolin-1 expression in tumorous breast and colon tissues was detected by this polyclonal antibody. In conclusion, we have identified amino acids 50-65 of Caveolin-1, which contains an epitope that is specific to Caveolin-1 and is conserved in the human, goat and mouse. In future, this anti-Caveolin-1 antibody can be used to examine the progression of breast and colon cancers and to study functions of Caveolin-1 in human, goat and mouse cells.