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Characterization of caldarchaetidylglycerol analogs, dialkyl‐type and trialkyl‐type, from Thermoplasma acidophilum
Author(s) -
Uda Ikuko,
Sugai Akihiko,
Itoh Yuko H.,
Itoh Toshihiro
Publication year - 2000
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/s11745-000-0631-x
Subject(s) - thermoplasma acidophilum , phytane , cyclopentane , stereochemistry , norbornane , chemistry , hydrocarbon , terpenoid , biology , organic chemistry , biochemistry , pristane , enzyme
The structures of three kinds of phospholipids (PL‐X, PL‐Y, and PL‐T) isolated from Thermoplasma acid‐ophilum have been characterized. The core lipid of PL‐Y was caldarchaeol, and that of PL‐X was archaeol. The composition of the hydrocarbon chains of the PL‐T core lipid was C 20 phytane and C 40 isoprenoid in a molar ratio of 2 to 1. The major molecular species of the C 40 isoprenoid was acyclic without the cyclopentane ring. These three kinds of intact phospholipids commonly had glycerophosphate residues as polar head groups. The structure of PL‐T was characterized as trialkyl‐type caldarchaetidylglycerol, PL‐Y as caldarchaetidylglycerol, and PL‐X as archaetidylglycerol.