O. Grather et D. Arigoni, DETECTION OF REGIOISOMERIC MACROCYCLIC TETRAETHERS IN THE LIPIDS OF METHANOBACTERIUM-THERMOAUTOTROPHICUM AND OTHER ARCHAEAL ORGANISMS, Journal of the Chemical Society, Chemical Communications, (4), 1995, pp. 405-406
Chemical degradation shows that an apparently homogeneous preparation
from the lipids of Methanobacterium thermoautotrophicum is in fact a m
ixture of the regioisomeric compounds 2 and 8 differing in the relativ
e orientation of their glycerol units; a similar situation holds for t
he related diglycerol tetraethers of Thermoplasma acidophilum and Sulf
olobus solfataricus.