A rapid method for preparation of rough and smooth lipopolysaccharide from Bacteroides, Porphyromonas and Prevotella

Déirdre Ní Eidhin; Christian Mouton

doi:10.1111/j.1574-6968.1993.tb06309.x

A rapid method for preparation of rough and smooth lipopolysaccharide from Bacteroides, Porphyromonas and Prevotella

Déirdre Ní Eidhin, Christian Mouton

Université Laval

Research output: Contribution to journal › Article › peer-review

Abstract

We describe a new method for lipopolysaccharide (LPS) preparation by water extraction at 100°C and subsequent digestion with proteinase K. The crude LPS could be reliably used for immunoblotting since it retained a high level of antigenicity, and was free of SDS and proteinase K, both of which can cause problems. Two monoclonal antibodies which failed to react with LPS prepared by two conventional methods reacted well with our preparation. We used the new method to prepare LPS from 44 strains of bacteria formerly classified as Bacteroides, some of which have been reclassified as Porphyromonas or Prevotella. In general, yields were good, and electrophoretic profiles obtained with SDS-PAGE and silver staining enabled strains to be rated rough, semi-rough, or smooth.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	FEMS Microbiology Letters
Volume	110
Issue number	2
DOIs	https://doi.org/10.1111/j.1574-6968.1993.tb06309.x
Publication status	Published - 15 Jun 1993
Externally published	Yes

Keywords

Bacteroides
Lipopolysaccharide
Porphyromonas
Prevotella

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10.1111/j.1574-6968.1993.tb06309.x

Cite this

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abstract = "We describe a new method for lipopolysaccharide (LPS) preparation by water extraction at 100°C and subsequent digestion with proteinase K. The crude LPS could be reliably used for immunoblotting since it retained a high level of antigenicity, and was free of SDS and proteinase K, both of which can cause problems. Two monoclonal antibodies which failed to react with LPS prepared by two conventional methods reacted well with our preparation. We used the new method to prepare LPS from 44 strains of bacteria formerly classified as Bacteroides, some of which have been reclassified as Porphyromonas or Prevotella. In general, yields were good, and electrophoretic profiles obtained with SDS-PAGE and silver staining enabled strains to be rated rough, semi-rough, or smooth.",

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AU - Eidhin, Déirdre Ní

AU - Mouton, Christian

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N2 - We describe a new method for lipopolysaccharide (LPS) preparation by water extraction at 100°C and subsequent digestion with proteinase K. The crude LPS could be reliably used for immunoblotting since it retained a high level of antigenicity, and was free of SDS and proteinase K, both of which can cause problems. Two monoclonal antibodies which failed to react with LPS prepared by two conventional methods reacted well with our preparation. We used the new method to prepare LPS from 44 strains of bacteria formerly classified as Bacteroides, some of which have been reclassified as Porphyromonas or Prevotella. In general, yields were good, and electrophoretic profiles obtained with SDS-PAGE and silver staining enabled strains to be rated rough, semi-rough, or smooth.

AB - We describe a new method for lipopolysaccharide (LPS) preparation by water extraction at 100°C and subsequent digestion with proteinase K. The crude LPS could be reliably used for immunoblotting since it retained a high level of antigenicity, and was free of SDS and proteinase K, both of which can cause problems. Two monoclonal antibodies which failed to react with LPS prepared by two conventional methods reacted well with our preparation. We used the new method to prepare LPS from 44 strains of bacteria formerly classified as Bacteroides, some of which have been reclassified as Porphyromonas or Prevotella. In general, yields were good, and electrophoretic profiles obtained with SDS-PAGE and silver staining enabled strains to be rated rough, semi-rough, or smooth.

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A rapid method for preparation of rough and smooth lipopolysaccharide from Bacteroides, Porphyromonas and Prevotella

Abstract

Keywords

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