IDENTIFICATION OF BRUCELLA ABORTUS (S19) IMMUNOGENS USING TWO- DIMENSIONAL GEL ELECTROPHORESIS AND WESTERNBLOTTING

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ABD ALALIZADEH J.; MOSTAFAIE A.; KHARAZI H.; NOUMANPOUR B.; NOMANI H.

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Journal: Journal of Kermanshah University of Medical Sciences Year:2003 | Volume:7 | Issue:1 Page(s): 3-4

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Title

IDENTIFICATION OF BRUCELLA ABORTUS (S19) IMMUNOGENS USING TWO- DIMENSIONAL GEL ELECTROPHORESIS AND WESTERNBLOTTING

Author(s)

Keywords

BRUCELLA ABORTUSQ3

TWO-DIMENSIONAL GEL ELECTROPHORESISQ3

WESTERNBLOTQ3

IMMUNOGENQ3

Abstract

Background & Objectives: Brucellosis is one of the most important zoonotic disease caused by genus of Brucella. Lipopolysaccharides (LPSs), outer membrane proteins and several ribosomal or cytosolic proteins of Brucella have been considered for diagnostic and subunit vaccine purposes. The objective of this experiment was to identify and compare IMMUNOGENs of BRUCELLA ABORTUS (S19) in infected human and goat and immunized rabbit.Materials and Methods: BRUCELLA ABORTUS (S19) was obtained from Pasture Institute of Iran. The bacterial proteins were extracted by lysozyme, urea and CHAPS, then analysed by TWO-DIMENSIONAL GEL ELECTROPHORESIS. The resolved proteins were transferred to nitrocellulose membrane by tank blotting and their reactions with the sera preformed by immunoblotting. Results: The proteins of the (S19) strain were often acidic pI 4.5-5.7) in range of 10-100 kDa. The most aboundant proteins which were IMMUNOGENic in goat and rabbit but not in human was a group of 5-6 spots observed in acidic side (pI 4.5-5.7) and molecular mass of 32-34 kDa. In human a group of 4-5 proteins with mass of 44 kDa and pI ranging from 4.5 to 5.5 and several low molecular weight proteins were IMMUNOGENic. Furthermore several proteins of Rubella had common reactions with human, goat and rabbit sera.Discussion: Lipopolysaccharids of BRUCELLA ABORTUS (S 19) had remarkable reactivity against all of the sera; but are not good candidates for diagnosis of brucellosis, because of structural similarities with some gram negative bacteria and remaining of anti-LPS antibodies in high levels in sera of many cases after recovery of brucellosis. In contrast, some antigenic proteins can be candidate for accurate diagnosis, and recognition of active from inactive brucellosis in human and cattle. The results of this study suggested that a group of 4-5 proteins of 44 kDa and pI 4.5-5.5 and several low molecular weight protein in human and a group of 5-6 proteins with 32-34 KDa and pI 4.5-5.7 in goat and rabbit as potential diagnostic candidates.

Cites

REACTION OF NATIVE AND DENATURED BRUCELLA ABORTUS (S19) PROTEINS WITH ANTIBODY USING AFFINITY CHROMATOGRAPHY AND IMMUNOBLOTTING

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APA: Copy

ABD ALALIZADEH, J., MOSTAFAIE, A., KHARAZI, H., NOUMANPOUR, B., & NOMANI, H.. (2003). IDENTIFICATION OF BRUCELLA ABORTUS (S19) IMMUNOGENS USING TWO- DIMENSIONAL GEL ELECTROPHORESIS AND WESTERNBLOTTING. JOURNAL OF KERMANSHAH UNIVERSITY OF MEDICAL SCIENCES (BEHBOOD), 7(1), 3-4. SID. https://sid.ir/paper/357521/en

Vancouver: Copy

ABD ALALIZADEH J., MOSTAFAIE A., KHARAZI H., NOUMANPOUR B., NOMANI H.. IDENTIFICATION OF BRUCELLA ABORTUS (S19) IMMUNOGENS USING TWO- DIMENSIONAL GEL ELECTROPHORESIS AND WESTERNBLOTTING. JOURNAL OF KERMANSHAH UNIVERSITY OF MEDICAL SCIENCES (BEHBOOD)[Internet]. 2003;7(1):3-4. Available from: https://sid.ir/paper/357521/en

IEEE: Copy

J. ABD ALALIZADEH, A. MOSTAFAIE, H. KHARAZI, B. NOUMANPOUR, and H. NOMANI, “IDENTIFICATION OF BRUCELLA ABORTUS (S19) IMMUNOGENS USING TWO- DIMENSIONAL GEL ELECTROPHORESIS AND WESTERNBLOTTING,” JOURNAL OF KERMANSHAH UNIVERSITY OF MEDICAL SCIENCES (BEHBOOD), vol. 7, no. 1, pp. 3–4, 2003, [Online]. Available: https://sid.ir/paper/357521/en

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