• Title/Summary/Keyword: polyclonal antibody

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Comparison of IHNV Detection Limits by IMS-RT-PCR, Western Blot and ELISA

  • Kim Soo-Jin;Lee Eun-Young;Oh Myung-Joo;Choi Tae-Jin
    • Fisheries and Aquatic Sciences
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    • v.4 no.1
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    • pp.32-38
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    • 2001
  • Several molecular biological techniques have been used to detect virus rapidly and accurately, but these methods have limitations in the early stage of viral infection with very low concentration of virus. We compared the detection limits of IMS-PCR, Western blot and ELISA with infectious hematopoietic necrosis virus OHNV). Four antibodies, rabbit anti-IHNV polyclonal antibody, anti-IHNV nucleocapsid protein monoclonal antibody, anti-IHNV nucleocapsid protein polyclonal antibody, and anti-IHNV glycoprotein polyclonal antibody, were tested to find out the most effective antibody for each method. The detection limit with IMS- PCR was $2\times10^6$ pfu when the viral RNA was extracted before RT-PCR. In the western blot with rabbit anti­IHNV polyclonal antibody one pfu of virus could be detected. In ELISA, 10 pfu of virus particles were detected with the same antibody.

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Effects of epitope sequence tandem repeat and proline incorporation on polyclonal antibody production against cytochrome 1A2 and 3A4

  • Ahn, Tae-Ho;Yun, Chul-Ho
    • BMB Reports
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    • v.42 no.7
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    • pp.418-420
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    • 2009
  • We describe a method for producing polyclonal antibodies against peptide antigen cytochrome P450 1A2 and 3A4 using a tandem repeat of the epitope region and incorporation of proline residue between the repeated sequences. An ELISA assay revealed more efficient generation of polyclonal antibodies to tandem repeat peptide antigens than mono-epitope peptides. The incorporation of proline residues further stimulated antibody production.

Development and Characterization of Anti-gliadin Polyclonal Antibody in Wheat

  • Chang, Suk Joo;Hong, Byung Hee;Seo, Yang Weon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.44 no.4
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    • pp.339-344
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    • 1999
  • Immunological method has been applied in biochemical genetic analysis of seed storage proteins. We developed and characterized anti-gliadin polyclonal antibody (AGPab) specific to gliadin fractions whose quality and quantity were known to be associated with wheat end-use quality. Reactions of anti-gliadin polyclonal antibody (AGPab) to gliadin were linearly decreased as AGPab and antigen were diluted. Dot-blot and immunoblot assay showed that produced AGPab specifically reacted to gliadin and mainly $\alpha$-, $\beta$-, and ${\gamma}$-gliadin subunits. Enzyme-linked immuno- sorbent assay (ELISA) was applied for quantifi-cation of gliadins in Korean wheat cultivars and breeding lines by using AGPab. High reactions between AGPab and gliadins were found in wheat cultivars Olmil and Olgeurumil. Significant difference of optical densities for alcohol soluble proteins among crop species was found, as wheat showed the highest value (0.697) followed by rye (0.295), and barley (0.066).

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Studies on the Characteristics of Anti-Zona Antibody II. Effect of Anti-Zona Antibody on Fertilization of Porcine and Mouse Eggs In Vitro (항투명대 항체의 특성에 관한 연구 II. 항투명대 항체가 돼지난자와 생쥐난자의 체외수정에 미치는 영향)

  • 김은영;박세필;정형민;정길생;김종배
    • Korean Journal of Animal Reproduction
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    • v.14 no.2
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    • pp.115-124
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    • 1990
  • These experiments were undertaken as a basic study to develop immunocontraceptive vaccine and to understand the role of zona pellucidae in early fertilization process by investigating the effect of monoclonal and polyclonal antibody to porcine zona pellucidae and polyclonal antibody to mouse zona pellucidae on the fertilization of porcine and mouse eggs in vitro. The results obtained in these experiments were summarized as follows : 1. Treatment of porcine and mouse eggs with undiluted anti-zona serum produced intense precipitation layer on the poricne and mouse zonae, respectively, thus resulting in the total inhibition of sperm adherence on surface of zona. 2. In vitro fertilization of eggs pre-treated with 0.3∼10% of various antibodies was examined, and resulting in that 5 and 10% of rabbit polyclonal antibodies to porcine zona inhibited completely both in vitro fertilization and polyspermy of porcine eggs while monoclonal to porcine zona and rabbit polyclonal antibody to mouse zona did not inhibit in vitro fertilization but monoclonal antibody reduced the rate of polyspermy compared to that of control group. Almost the same results were obtained in the study on the effect of anti-zona serum on in vitro fertilization of mouse eggs.

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

  • Ryu, Hyung-Seok;Kang, Ho-Joon;Kim, Seul Ki;Kim, Namsoo;Kim, Woo-Yeon
    • Food Engineering Progress
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    • v.13 no.4
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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.

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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    • v.25 no.4
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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.

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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    • v.28 no.1
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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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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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    • v.20 no.6
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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.

Quality Control for Radioimmunoassay of Cyclosporine (Cyclosporine 방사면역측정법의 정도관리)

  • Jeong, Jae-Min;Seo, Il-Tack;Moon, Dae-Hyuk;Chung, June-Key;Lee, Myung-Chul;Cho, Bo-Youn;Koh, Chang-Soon
    • The Korean Journal of Nuclear Medicine
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    • v.23 no.2
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    • pp.225-230
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    • 1989
  • According to the development of monoclonal antibodies against cyclosporine, it became available to replace the conventional polyclonal antibody method with new monoclonal antibody method to measure the blood level of cyclosporine by radioimmunoassay. We compared the results obtained by the two methods: polyclonal antibody and monoclonal antibody method. The results were obtained as follows: 1) We obtained mean value 137.3 ng/ml and CV 16.1% from plasma sample, and mean values 495.7 ng/ml and 1053.8 ng/ml and CVs 19.3% and 17.4% respectively from whole blood sample by polyclonal antibody method. 2) For the two control groups, 100 ng/ml 400 ng/ml each, we obtained that the CVs were 20.2% and 14.0% respectively from plasma sample, and 11 9% and 13.1% respectively from whole blood sample by monoclonal antibody method. In conclusion, we found that cyclosporine RIA was a relatively reliable method to measure blood or plasma concentration. Especially RIA using monocloanl antibody showed less degree of error in measurement compared to polyclonal antibody method.

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