Characterization of Phospholipids in Membrane Vesicles Derived from Pseudomonas aeruginosa

Yosuke TASHIRO; Aya INAGAKI; Motoyuki SHIMIZU; Sosaku ICHIKAWA; Naoki TAKAYA; Toshiaki NAKAJIMA-KAMBE; Hiroo UCHIYAMA; Nobuhiko NOMURA

doi:10.1271/bbb.100754

Biochemistry & Molecular Biology Note

Characterization of Phospholipids in Membrane Vesicles Derived from Pseudomonas aeruginosa

Yosuke TASHIRO, Aya INAGAKI, Motoyuki SHIMIZU, Sosaku ICHIKAWA, Naoki TAKAYA, Toshiaki NAKAJIMA-KAMBE, Hiroo UCHIYAMA, Nobuhiko NOMURA

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Keywords: Pseudomonas aeruginosa, membrane vesicles, phospholipid, fatty acid

JOURNAL FREE ACCESS

2011 Volume 75 Issue 3 Pages 605-607

DOI https://doi.org/10.1271/bbb.100754

View "Advance Publication" version (March 7, 2011).

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Abstract

Many Gram-negative bacteria release membrane vesicles (MVs), but their phospholipid properties are poorly understood. Phosphatidylglycerol was present at high levels in MVs derived from Pseudomonas aeruginosa, but not in the cellular outer membrane. The ratio of stearic acid in MVs was high compared to that in the cellular outer membrane. These findings suggest that membrane rigidity is associated with MV biogenesis.

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