Recombinant monoclonal antibodies against the lipopolysaccharide of Ralstonia solanacearum (biovar 2, race 3) are provided. The antibody reacted with all race 3 strains tested, but with only some strains belonging to other races. Furthermore, only a few cross-reactions with saprophytic bacteria. Therefore, this antibody is potentially useful for detection of R. solanacearum race 3.
Figure 1 Reaction of purified monoclonal single-chain variable antibody fragments (scFv) (anti-LPS 3, anti-LPS 8, anti-LPS 12, and anti-LPS 13) with lipopolysaccharide (LPS) in enzyme-linked immunosorbent assay (ELISA).
ELISA plates were coated with LPS derived from Ralstonia solanacearum.
Griep, R. A., van Twisk, C., van Beckhoven, J. R., van der Wolf, J. M., & Schots, A. (1998). Development of Specific Recombinant Monoclonal Antibodies Against the Lipopolysaccharide of Ralstonia solanacearum Race 3. Phytopathology, 88(8), 795–803.
Figure 2 Immunofluorescence staining of whole Ralstonia solanacearum bacteria.
A surface epitope is recognized by single-chain variable antibody fragment (scFv) anti-lipopolysaccharide (LPS) 12.
Griep, R. A., van Twisk, C., van Beckhoven, J. R., van der Wolf, J. M., & Schots, A. (1998). Development of Specific Recombinant Monoclonal Antibodies Against the Lipopolysaccharide of Ralstonia solanacearum Race 3. Phytopathology, 88(8), 795–803.
Figure 3 Western blot showing that the epitope that is recognized is located on the LPS of R. solanacearum.
Purified LPS, derived from R. solanacearum (tracks 1 and 3) and R. picketti (tracks 2 and 4) was blotted onto nitrocellulose and stained with silver (Bio-Rad Laboratories) or with scFv anti-LPS 12 (tracks 3 and 4), respectively.
Griep, R. A., van Twisk, C., van Beckhoven, J. R., van der Wolf, J. M., & Schots, A. (1998). Development of Specific Recombinant Monoclonal Antibodies Against the Lipopolysaccharide of Ralstonia solanacearum Race 3. Phytopathology, 88(8), 795–803.
This is a product of Creative Biolabs' Hi-Affi™ recombinant antibody portfolio, which has several benefits including:
• Increased sensitivity
• Confirmed specificity
• High repeatability
• Excellent batch-to-batch consistency
• Sustainable supply
• Animal-free production
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