Separation of antigenic glycoprotein fractions from cell-free homogenate of Pseudomonas pseudomallei and characterization as tyrosine phosphatase

Kondo, E.; Wangroongsaub, P.; Naigowit, P.; Kanai, K.

Southeast Asian Journal of Tropical Medicine and Public Health 25(3): 436-442

1994


ISSN/ISBN: 0125-1562
PMID: 7539939
Document Number: 436902
Cell-free extracts were prepared from Pseudomonas pseudomallei cells by freezing-thawing, sonication, and differential ultracentrifugation. The extracts were subjected to column chromatography with DEAE-sepharose to obtain glycoprotein fractions. The fractions showed acid phosphatase activity to p-nitrophenyl phosphate, tyrosine phosphate, serine phosphate, but not to threonine phosphate. They were highly antigenic when tested by immunofluorescence assay with the sera of melioidosis patients.

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